Gratings Brochure

FERROGRATE

ABOUT US

Ferrotech...

Our Strength... Our Team

The Industries... We Serve

The Products... We Supply

Our Presence

Leveraging

of drawings, Fabrication and supply of Electro forged and manually welded Steel / FRP Gratings.

Its in house engineering expertise, our service portfolio includes the design and detailing

Established in the year 2002, Ferrotech Intl. is recognised as one of the well reputed and leading

manufacturer and exporter of Floor Gratings, Stair Treads, Safety Handrails and Access Engineering

Products.

With the strength of modern manufacturing facilities, a strong team of qualified, experienced

engineers and a highly motivated skilled workforce, Ferrotech has established a reputation for

managing projects of all sizes, supplying quality products on time, every time.

Oil and Gas Projects, Power and Desalination Projects, Airports, Waste water treatment Plants,

Shipbuilding and repair works, Petro chemical projects, Pharmaceutical industries, Cement and

Sugar industries, Infra structure projects etc.,

F Electro Forged Steel Gratings

F Manual Welded Steel Gratings

F Press locked Steel Gratings

F

F Stainless Steel Gratings

F Ductile iron Gratings

Aluminium Gratings F

F Stair Treads / Grating Clips

F Steel / FRP Handrails

FRP / GRP Gratings

FERROTECH INTERNATIONAL FZE - UAE

DUBAI ENTERPRISES MODERN TRADING - OMAN

FERROTECH STRUCTURALS INDIA PVT LTD - INDIA

1 www.ferrograte.com

Electroforged Grating

A steel grid formed from load bearing

bars and cross bars through resistance

welding

Span Width

Direction of the load bearing bars Direction of the cross bars.

Plain load bearing bar

Flat bar with plain top surface

Serrated load bearing bar

Flat bar with serrated top surface.

Pitch

The Centre to centre distance

between load bearing bars or cross bars.

Binding bar

Flat bar welded to the edge of

grating panels

Grating gross area

Total area of gratings including

cut-out areas.

Grating net area

Total area of gratings excluding

cut-out areas.

GRATING - TERMINOLOGY

www.ferrograte.com 2

GRATING - TERMINOLOGY

Cut -out

Area of grating cut out for pipes and

columns to pass through.

Straight shaping

Cut-out with straight edges.

Curved shaping

Cut-out with curved edges.

Toe Plate / Kick Plate

Larger size flat bar welded to the edge of

grating panels for safety purposes.

Curb Angle

A support fixed to concrete or steelwork

to support gratings.

Erection Clearance

The distance from a grating panel to an

adjacent panel or structure.

Stair Tread

A grating with end plates and anti-slip nosing for use in stairways.

End Plates

Plates fixed to both ends of Stair tread for fixing to stringers

Anti-Slip Nosings

Pyramid type or chequered type anti

slip nosings welded to stair tread or

gratings to prevent slipping


Electro Forged Steel Grating

ELECTRO FORGED GRATINGS

Load bearing bars and the twisted cross bars are

pressed and welded together by electric resistance

welding process with 2500kvA current. Simultaneously

1000 kN Hydraulic pressure will be applied to forge

these together to form open grid flooring.

Gratings are manufacture as per BS4592 part one

1987 standards. Note : Add 2.99 kg/m2 to approx. finished weight for cross bars @ 50mm centresAdd 0.56 kg/m2 to approx. finished weight to get weight with fixing clips

GRATING with load bearing bars @ 41 mmcentres Cross bars @ 100 or 50 mm centres

LOADING CONSIDEREDa =b =

c =

3.0

5.0

7.5

2kN/m

2kN/m

2kN/m

NOTE: For 3 mm load bars subtract 2 mm from widthswidth dimensions can vary due to manufacturing process

S.C.F is the serrated conversion factor by which the safe loads and deflections must be multiplied to obtain those for the equivalent overall load bearing bar depth with serrated top surface.

NOMINAL O/A DIMENSION OF BARS(in mm)

No. of Bars

5 mm Load Bars

4

128

5

169

6

210

7

251

8

292

10

374

11

415

12

456

13

497

14

538 579 620 661 702

No. of Bars

5 mm Load Bars

19

743

20

784

21

825

22

866

23

907

9

333

24

948

25

989

Standard width

41 centres

100 centres 50 centres

Max clear spanfor pedestrian

Load (mm)

‘D’(mm)

BearingBar

(mm)

MAXIMUM UNIFORMLY DISTRIBUTED LOAD IN kN/m2 AND MAXIMUM DEFLECTION IN mm@ INDIVIDUAL CLEAR SPANS SHOWN IN mm.

UNITS 300 450 600 750 900 1000 1200 1350 1500 1650 1800 1950 2000

abc

abc

221419311687

244721541928

10.009.668.44

10.0010.00

9.64

10.00

35 x 5

40 x 5

2kN/m

D (mm)2

kN/m

D (mm)

184.31

1.05

240.74

1.05

103.68

1.86

135.41

1.86

66.35

2.91

86.67

2.91

46.08

4.20

60.18

4.20

36.03

5.00

48.75

5.00

20.85

6.00

31.12

6.00

14.64

6.75

21.86

6.75

10.67

7.50

15.93

7.50

8.02

8.25

11.97

8.25

6.18

9.00

9.22

9.00

4.86

9.75

7.25

9.75

10.00

6.72

10.00

4.50

Approx.Fin. Wt

2kg/m

SCF

U.D.L. D

41.88

47.43

0.89

0.90

1.05

1.05

abc

289325462301

10.0010.00 50 x 5

2kN/m

D (mm)

376.15

0.73

211.59

1.31

135.41

2.04

94.04

2.94

76.17

3.63

52.90

5.22

41.79

6.61

31.12

7.50

23.38

8.25

18.01

9.00

14.17

9.75 10.00

13.130.92 1.03 58.54

abc

330329072627

10.0010.0010.00

60 x 5

2kN/m

D (mm)

610.00

0.70

325.00

1.17

200.00

1.80

150.00

2.75

125.00

3.50

86.00

5.00

65.00

6.00

59.50

7.00

39.80

8.25

30.70

9.00

24.10

9.75 10.00

22.350.92 1.03 70.39

abc

abc

abc

165613961220

193116391423

215418621626

8.286.986.10

9.668.157.12

10.009.318.13

30 x 3

35 x 3

40 x 3

2kN/mD (mm)

2kN/m

2kN/m

D (mm)

D (mm) 1.05 1.86 2.91 4.20 5.00 6.00 6.75 7.50 8.25 9.00 9.75 10.00

81.25

110.59

143.00

0.92

1.2245.70

62.21

81.25

1.63

2.1829.25

39.81

52.00

2.55

3.4018.67

27.65

36.11

3.67

4.5013.61

21.62

29.25

4.53

5.007.88

12.51

18.67

6.00

6.005.53

8.79

13.11

6.75

6.754.03

6.40

9.56

7.50

7.503.03

4.81

7.18

8.25

8.252.33

3.71

5.53

9.00

9.001.84

2.92

4.35

9.75

9.751.70

10.00

2.70

4.03

10.00

22.99

26.32

29.66

0.87

0.89

0.90

1.06

1.05

1.05

abc

138011641017

6.905.825.08

25 x 32

kN/m

D (mm)

56.42

1.47

31.74

2.61

18.67

3.75

10.81

4.50

7.88

5.00

4.56

6.00

3.20

6.75

2.33

7.50

1.75

8.25

1.35

9.00

1.06

9.75

0.98

10.0019.000.85 1.08

abc

163613801205

8.186.906.03

25 x 52

kN/m

D (mm)

94.04

1.47

52.90

2.61

31.12

3.75

18.01

4.50

13.13

5.00

7.60

6.00

5.34

6.75

3.89

7.50

2.92

8.25

2.25

9.00

1.77

9.75

1.64

10.0030.770.85 1.08

abc

230520291700

10.0010.007.40

40 x 42

kN/m

D (mm)

190.00

0.92

106.50

1.63

68.30

2.55

47.40

3.67

38.40

4.53

24.55

6.00

17.22

6.75

2.56

7.50

9.43

8.25

7.27

9.00

5.71

9.75

5.30

10.0038.940.90 1.05

abc

196316561446

9.818.287.23

30 x 5

2kN/m

D (mm)

135.41

1.22

76.17

2.18

48.75

3.40

31.12

4.50

22.69

5.00

13.13

6.00

9.22

6.75

6.72

7.50

5.05

8.25

3.89

9.00

3.06

9.75 10.00

2.8436.320.87 1.06

abc

206217501500

10.008.657.00

32 x 5

2kN/m

D (mm)

414.71

0.47

541.66

0.41

846.34

0.33

1330.00

0.30

0.47

182.81

248.82

325.00

0.41

0.54

126.95

0.65

211.59

0.65

429.00

0.41

304.68

0.54

335.00

0.50

146.00

1.10

84.00

2.01

55.00

3.21

34.70

4.20

27.15

5.00

15.70

6.00

11.02

6.75

8.04

7.50

6.04

8.25

4.65

9.00

3.66

9.75 10.00

3.3938.940.89 1.05

SAFE WORKING LOADS & DEFLECTION TABLES FOR 41 mm pitch


15 16 17 18

GRATING with load bearing bars @ 30 mmcentres Cross bars @ 100 or 50 mm centres

Note : Add 2:99 kg/m2 approx. finished weight forcross bars @ 50 mm centres

SAFE WORKING LOADS & DEFLECTION TABLES FOR 30 mm pitch

Safe Uniformly distributed loads (U.D.L.) in kilonewtons per square metre onsimply supported panels with deflections (D) in mm. Based on a maximumpermissible stress of 180 N/mm2 which allows for a safety factor of 1.6.

Note: For pedestrain traffic there are three loading categories which are (a)light duty. (b) normal duty and © heavy duty. These categories are describedas (a) access limited to one person only, (b) regular two way trafficand © high density traffic, Bs4592, part one 1987.

30 centres

100 centres 50 centres

Standard width

NOMINAL O/A DIMENSION OF BARS(in mm)

No. of Bars

5 mm Load Bars

4

95

5

125

6

155

7

185

8

215

9

245

10

275

11

305

12

335

13

365

14

395

15

425

16

455

17

485

18

515

No. of Bars

5 mm Load Bars

20

575

21

605

22

635

23

665

24

695

25

725

26

NOTE:

*For 3 mm load bars subtract 2 mm from widths

*width dimensions can vary due to manufacturing process

*In addition to 30 and 41 mm pitch we also manufacture the gratings with 33 mm c/c, 35 mm c/c, 40 mm c/c and 60 mm c/c

755

19

545

27

785

28

815

29

845

30

875

31

905

32

935

33

965

34

995

S.C.F is the serrated conversion factor by which the safe loads and deflections must be multiplied to obtain those for the equivalent overall load bearing bar depth with serrated top surface.

Electro Forged Steel Grating

LOADING CONSIDEREDa =b =

c =

3.0

5.0

7.5

2kN/m

2kN/m

2kN/m

10.0010.009.33

10.0010.0010.00

35 x 5

40 x 5

2kN/m

D (mm)

2kN/m

D (mm)

0.89 1.05 54.82

0.90 1.05 62.23

Max clear spanfor pedestrian

Load (mm)

‘D’(mm)

BearingBar

(mm)

MAXIMUM UNIFORMLY DISTRIBUTED LOAD IN kN/m2 AND MAXIMUM DEFLECTION IN mm@ INDIVIDUAL CLEAR SPANS SHOWN IN mm.

abcabc

238721011866

263923222098

10.0010.0010.00

50 x 5

2kN/m

D (mm)0.92 1.03 77.04

abc

311927452481

10.0010.0010.00

60 x 5

2kN/m

D (mm)0.92 1.03 92.86

abc

356731402837

SCF

U.D.L D

Approx.Fin. Wt

2kg/mUNITS 300 450 600 750 900 1000 1200 1350 1500 1650 1800 1950 2000

9.017.87

10.0010.00

8.99

35 x 3

40 x 3

2kN/m

D (mm)

2kN/m

D (mm)

0.89 1.05 34.09

0.90 1.05 38.53

abcabc

210118011574

232220441799

10.00

6.43 25 x 3

30 x 3

2kN/m

D (mm)

2kN/mD (mm)

0.85 1.08 25.21

0.87 1.06 29.65

abcabc

152612871124183115441349

7.63

5.629.157.726.74

10.0010.00

9.41

40 x 42

kN/m

D (mm)0.90 1.05 50.92

abc

249021911950

9.047.636.66

25 x 52

kN/mD (mm)

0.85 1.08 40.02

abc

180915261333

10.009.158.00

30 x 52

kN/m

D (mm)0.87 1.06 47.42

abc

212718311599

10.008.848.50

32 x 52

kN/m

D (mm)0.89 1.05 50.92

560.78

0.47

0.41

732.44

1144.44

0.33

1800.00

0.30

367.47

0.47

439.47

0.41

0.65

247.20

0.54

171.67

583.00

0.41

286.11

0.65

412.00

0.54

455.00

0.50

249.23

1.05

0.92

325.53

508.64

0.73

830.00

0.70

149.54

1.05

195.32

0.92

1.47

109.87

1.22

76.30

259.00

0.92

127.16

1.47

183.11

1.22

198.00

1.10

140.19

1.86

1.63

183.11

286.11

1.31

439.00

1.17

84.12

1.86

109.87

1.63

2.61

61.80

2.18

42.92

145.00

1.63

71.53

2.61

103.00

2.18

114.50

2.01

89.72

2.91

2.55

117.19

183.11

2.04

277.00

1.80

53.83

2.91

70.31

2.55

3.75

39.55

3.40

25.25

92.70

2.55

42.08

3.75

65.92

3.40

75.00

3.21

62.31

4.20

3.67

81.38

127.16

2.94

204.00

2.75

48.83

37.39

4.20

3.67

4.50

25.25

4.50

14.61

64.50

3.67

24.35

4.50

42.08

4.50

47.20

4.20

48.72

5.00

4.53

65.92

103.00

3.63

170.15

3.50

29.23

5.00

39.55

4.53

18.41

5.00

5.00

10.65

52.20

4.53

17.75

5.00

30.68

5.00

37.00

5.00

28.19

6.00

6.00

42.08

71.53

5.22

117.30

5.00

16.92

6.00

25.25

6.00

6.00

10.65

6.00

6.16

33.34

6.00

10.27

6.00

17.75

6.00

21.35

6.00

19.80

6.75

6.7529.56

56.52

6.61

87.90

6.00

11.88

6.75

17.73

6.75

6.75

7.48

6.75

4.33

23.40

6.75

7.22

6.75

12.47

6.75

14.99

6.75

14.43

7.50

7.5021.55

42.08

7.50

67.30

7.00

8.66

12.93

7.50

7.50

7.50

5.45

7.50

3.16

17.10

7.50

5.26

7.50

9.09

7.50

10.95

7.50

10.84

8.25

8.2516.19

31.62

8.25

54.10

8.25

6.51

8.25

9.71

8.25

8.25

4.10

8.25

2.37

12.82

8.25

3.95

8.25

6.83

8.25

8.21

8.25

9.00

9.00

8.35

12.47

24.35

9.00

41.70

9.00

9.00

9.00

5.01

7.48

9.00

3.16

9.00

1.83

9.00

9.88

9.00

3.04

9.00

5.26

9.00

6.35

9.75

9.75

6.57

9.81

19.15

9.75

32.77

9.75

9.75

9.75

3.94

5.88

9.75

9.75

2.48

1.44

9.75

7.77

9.75

2.39

9.75

4.14

9.75

4.97

10.00

6.09

10.009.09

17.75

10.00

30.38

10.00

10.00

3.65

10.00

5.45

10.00

1.33

10.00

2.30

10.00

7.21

10.00

2.22

10.00

3.83

10.00

4.61abc

222719001700


Heavy duty gratings are press lockedgratings. The bearing bars and the crossbars are inter-locked with one anotherand then processed at a pressure of12,000 kN.

Due to their high stability and safety,heavy duty gratings are used where largesupport widths and high wheel loads arerequired.

Heavy duty gratings can be also pro-duced in stainless-steel

* Support width =clearance between the supports.

Point load in kN

Vehicle access: trucks up to 3tonnes in overall weight.

Vehicle access: trucks up to 9tonnes in overall weight.

Vehicle access: trucks up to30 tonnes in overall weight.

Vehicle access: trucks up to 60 tonnes in overall weight.

300

400

500

600

700

800

900

1000

1100

1200

1300

1400

1500

1600

1700

1800

1900

2000

Supportwidth * (mm)

80 x 8 90 x 8 100 x 8 110 x 8 120 x 8 130 x 8 140 x 8 150 x 8 100 x 10

163,84

122,88

81,92

61,44

36,68

43,12

207,36

155,52

124,42

103,68

62,21

40,39

32,07

51,84

35,75

256,00

192,00

153,60

128,00

64,00

76,80

54,86

44,14

39,59

35,89

32,82

30,24

309,76

232,32

185,86

154,88

77,44

116,16

66,38

58,08

51,63

43,42

39,71

36,59

368,64

276,48

221,18

184,32

110,59

138,24

78,99

69,12

61,44

55,30

50,27

43,54

FP

432,64

324,43

259,58

216,32

129,79

162,24

108,16

81,12

72,11

64,90

59,00

54,08

47,37

44,15

41,34

38,86

36,66

34,70

FP

501,76

376,32

301,06

250,88

150,53

188,16

125,44

107,52

83,63

75,26

68,42

62,72

57,90

53,76

50,18

45,07

42,52

40,25

FP

576,00

432,00

345,60

288,00

172,80

216,00

144,00

123,43

108,00

86,40

78,55

72,00

66,46

61,71

57,60

54,00

50,82

46,20

FP FPFPFPFP

B e a r i n g b a r s ( m m ) o t h e r b e a r i n g b a r s u p t o 2 0 0 x 1 2 o n r e q u e s t.

80 x 10

FP

204,80

153,60

122,88

102,40

51,20

61,44

39,90

35,31

31,67

27,93

90 x 10

FP FP

259,20 320,00

194,40 240,00

155,52 192,00

129,60 160,00

64,80 80,00

77,76 120,00

55,54 68,57

44,69 60,00

40,08 53,33

36,34 44,86

33,23 41,03

30,61 37,80

35,04

32,65

30,57

110 x 10

FP

387,20

290,40

232,32

193,60

116,16

145,20

82,97

72,60

64,53

58,08

52,80

45,73

42,39

39,51

36,99

34,78

32,81

31,06

31,92

27,31

24,58

22,34

20,48

18,90

17,55

16,38

15,36

14,46

13,65

12,93

28,28

25,92

23,93

20,74

19,44

18,30

17,28

16,37

22,22 27,43

25,60

24,00

22,59

21,33

20,21

33,92

31,61

29,04

27,33

25,81

24,45

40,36

37,62

35,22

33,11

31,24

29,10

28,24

26,67

25,26

27,77

25,92

24,30

22,87

21,60

20,46

25,60

23,63

21,94

20,48

19,20

18,07

17,07

16,17

Heavy Duty

Press Locked Gratings

FP

The values shown have been calculated formaximum permissible load rating on thebasis of the relevant load carrying area andbearing bar spacing of 50 mm.

Conversion factor for kg into kN

10 kN - 1 tonne1 kN - 100 kg


If the gratings you order are for ve-hicular use, you must give us detailsin advance – wheel load, load carry-ing area, clear span and direction oftravel so that we can calculate thegrating flooring.

Standard Mesh Spacing

Bearing bar Cross bar

25 x 50 100

50 x 50 10075 x 50 75 100

100 x 50 75 100

Bridge class Colour key Wheel load Load carrying area

3/3

9/9

30/30

60/30

Vehicle up to 3 t

Vehicle up to 9 t

Vehicle up to 30 t

Vehicle up to 60 t

10 kN

30 kN

50 kN

100 kN

200 x 200 mm

200 x 260 mm

200 x 400 mm

200 x 600 mm

80x8

90x8

100x8

110x8

120x8

130x8

140x8150x8

80x10

90x10

100x10

110x10

120x10

130x10

140x10

150x10

100x12

110x12

120x12

130x12

140x12

150x12

160x12

170x12

180x12

15x6

25x6

25x6

25x6

25x625x6

40x6

40x6

40x8

40x8

40x8

40x8

40x8

40x8

40x8

40x8

40x10

40x10

40x10

40x10

40x10

40x10

40x10

40x10

40x10

bearing bar length max. 2500 mm

Bearing bar Cross bar

120 x 10 150 x 10

FP

180 x 12

460,80

345,60

276,48

230,40

138,24

172,80

115,20

86,40

76,80

69,12

130 x 10 140 x 10

540,80

405,60

324,48

270,40

202,80

135,20

101,40

81,12

162,24

115,89

627,20

470,40

376,32

313,60

188,16

235,20

156,80

134,40

117,60

104,53

FPFP

720,00

540,00

432,00

360,00

216,00

270,00

180,00

154,29

135,00

120,00

FP

100 x 12

384,00

288,00

230,40

192,00

115,20

144,00

82,29

72,00

64,00

57,60

FP

110 x 12 120 x 12 130 x 12 140 x 12 150 x 12 160 x 12 170 x 12

FP

464,64

348,48

278,78

232,32

139,39

174,24

116,16

87,12

77,44

69,70

FP

552,96

414,72

331,78

276,48

165,89

207,36

138,24

118,49

103,68

82,94

FP FP FP FP FP

648,96 752,64 864,00 983,04 1109,76 1244,16

486,72 564,48 648,00 737,28 832,32 933,12

389,38 451,58 518,40 589,82 665,86 746,50

324,48 376,32 432,00 491,52 554,88 622,08

194,69 225,79 259,20 294,91 332,93 373,25

243,36 282,24 324,00 368,64 416,16 466,56

162,24 188,16 216,00 245,76 277,44 311,04

139,06 161,28 185,14 210,65 237,81 266,61

121,68 141,12 162,00 184,32 208,08 233,28

108,16 125,44 144,00 163,84 184,96 207,36

147,46 166,46 186,62

134,05 151,33 169,66

FP

113,43 128,05 143,56

105,33 118,90 133,30

122,88 138,72 155,52

62,84

57,60

53,17

47,02

44,03

41,39

39,05

36,96

73,75

67,60

57,94

54,08

50,70

45,83

43,38

62,40

85,53

78,40

72,37

67,20

62,72

58,80

55,34

52,27

83,08

77,14

72,00

67,50

63,53

60,00

52,36

45,35

42,04

39,18

36,69

34,49

32,54

30,80

47,41

44,39

41,73

39,38

37,27

59,25

55,30

51,84

46,86

44,36

69,53 80,64 92,57

64,90 75,26 86,40

60,84 70,56

57,26 66,41

54,08 62,72

108,00

90,00

63,36

58,08

53,61

75,40

69,12

63,80

88,49 112,90 129,60

81,12 102,63 117,82

74,88 86,84 108,00

92,16

86,74

81,92

110,98 124,42

104,04 116,64

92,48 109,78

81,00

76,24

72,00

B e a r i n g b a r s ( m m )


Heavy Duty

Press Locked Gratings


ductile iron /

gully gratings

FERROGRATE, an ideal product to change the danger zone safest foreveryone

Ferrograte offers wide range of Manhole covers with frames, Channel gratings, Kerb Gullies, Gully Gratings, Step Irons, Tree Grates etc

Manufactured as per BS EN 124 and covers all application sectors.

Areas of Application: Pedestrians, Footways, Carparks, KerbsideChannels of roads, Carriage ways, Docks, Airports Trench in ware houses& etc. Various sizes available as per request.

Type

A

Class Description Load

B

C

D

E

F

A15

B125

C250

D400

E600

F900

Manhole cover and Gully cover






15KN

125KN

250KN

400KN

600KN

900KN

STEP IRONS available in Galvanized Finish & Plastic coated Finish.Manufactured as per BS EN 1247.

SPECIFICATION TABLE:

Architectural

gratings

we have many pattern variations for you to choose from and we are able to offer gratings to match and suit yourload requirements. Gratings are manufactured from Cast Iron, Ductile Iron, Stainless Steel laser cut, GalvanisedSteel with or without frames.More Information available on request.

Stainless Steel

Gratings

a) Meshes :

b) Bearing bar dimensions :

c) Material :

d) Surface treatments :

30/30, 30/11, 20/20, 23/23, 30/60, 40/40, 15/46, 15/96, 32/29, 32/46, 32/96 mmAll meshes can be produced in plain or serrated surface design.

20/2, 25/2, 30/2, 40/2, 50/2, 20/3, 25/3, 30/3, 40/3, 50/3, 25/5, 30/5, 40/5, 50/5, mm.

Basically stainless steel gratings are produced in two different materials :1. Material no. 1.4301: Rust resistant (AISI 304)2. Material no. 1.4571: Rust and acid resistant (AISI 316L)

Raw (untreated), pickled, electro polished, or blasting with sand or glass pearls.

ALUMINIUM GRATINGS

ALUMINIUM GRATINGS

Aluminium gratings are manufactured by a high-powerpressing process in which all joints are made withoutwelding. The finished panels can be cut to size at anypoint without impairing the strength and rigidity. Alu-minium gratings are available in heights of 20, 25, 30 and 40 mm 3/4", 1", 13/16", and 19/16".

The standard panel sizes are approx.3000x1000 mm/99" x 3'3" or approx.6000 x 1000 mm/19.6" x 3'3"

The direction of the bearing bars is denoted by the under-lining. All specified sizes up to the above dimensions canbe banded with edge trims on request; the standardpanels have no edge trims.

www.ferrograte.com9

Stairtreads are designed for a simply supported condition when having a single con-centrated imposed load of 1.5 kN spread over an area of 150 mm x 150 mm placed atthe centre of the front edge of a tread.

The maximum recommended deflections is 1/200th of the effective span or 6 mmwhichever is lesser.

RECOMMENDED WIDTHS (Based on 5mm load bars)

LOAD BEARING BAR SIZE AND MAXIMUM LENGTH

A TYPE 130

122

160 190

204

20X3

665

597

841 944 1095

1004

1311

1228732 846

20X5 25X3 25X5 30X5

163

220 250 280

286245

310

327B TYPE

LOAD BAR SIZE

A TYPE

B TYPE

(A or F)

REAR CORNER OF TREAD END PLATESNIPED OFF AS SHOWNUNLESSMARKED THUS FRONT FIXING HOLE 14 DIA

REAR FIXING HOLE 14 X 30 SLOTUNLESS NOTED OTHERWISE, TREAD END PLATE IS65 X 6 M.S.FLAT

AntislipNOSING

OVERLAP

TREAD

NOSING WIDTH (5) GRATING CENTRE WIDTH (C)

GOING (L)

TREAD WIDTH (A)TR

EA

DR

ISE

(K)

16 MINIMUM (M)

TO SUIT K

STR

INGER

LINE

15 15

045

H

D E

END PLATE WIDTH (F)

GRATING

STAIR TREADS


Available in stainless steel 304 or 316, Mild steel Hot Dip Galvanized

GRATING Clamps

Comprising of

FSaddle Clip FPressed Clamp Plate FM8 x 70 Bolt & Nut

Manually Welded Heavy Gratings

Welded Heavy Duty Gratings are designed to meet the need for gratings subject toheavy rolling and static loads such as highways, plant floors, loading docks, inletcovers and airports. Since these conditions can range from light-duty forklifts tosemi-trucks and trailers carrying maximum allowable highway loads, Heavy Dutygratings are manufactured in a wide variety of bar sizes and spacing.

BEARING BAR SELECTION Once the bar spacing is selected, the bearing bar sizemust be specified based upon the anticipated load and the clear (unsupported) span tobe served.

SERRATED SURFACE Optional serrated bearing bars can be specified to enhanceskid resistance. To maximize skid resistance, specify 100% Serrated grating. ThisHeavy Duty grating is manufactured with serrated bearing bars and serratedrectangular cross bars.

www.ferrograte.com11

FRP Molded

Gratings

concentrated load with

300x75 mm block

Span

mm

mesh 85x18xh25 (100x25xh25)

Ped

est

rian

Tra

ffic

Lig

ht

-med

ium

Lo

ad

sSem

i-h

eavy

Lo

ad

sH

eavy

Lo

ad

s

mesh 30x30xh25 (40x40xh25)

mesh 30x30xh30 (40x40xh30)

mesh 19x19xh30 (25x25xh30)

mesh 30x30xh38 (40x40xh38)

mesh 8x8xh30 (17x17xh30)

mesh 19x19xh40 (25x25xh40)

mesh 40x15xh55 (50x25xh55)

600

600

600

600

600

600

600

800

420

350

550

570

950

640

1160

1620

270

200

380

350

430

430

600

620

1650

1300

2220

2420

4470

2660

4930

3930

1660

1120

2100

1930

3250

1820

3270

2780

800

800

800

800

800

800

800

1000

260

230

390

420

680

450

850

1380

210

160

300

270

335

340

460

585

700

550

940

1020

1890

1120

2080

2010

940

630

1180

1090

1830

1020

1840

1780

1000

1000

1000

1000

1000

1000

1000

1200

190

170

290

320

540

345

660

990

200

150

280

260

320

325

440

540

360

280

480

520

970

570

1070

1170

600

400

760

700

1170

650

1180

1230

1200

1200

1200

1200

1200

1200

1200

1400

160

130

230

260

430

280

530

780

190

140

270

250

300

310

430

500

210

160

280

300

560

330

620

730

420

280

530

480

810

450

820

910

Load with

1% defl.

Safety factor

10:1 load daN

Load with

1% defl.

Safely factor

10:1 load daN/m2

uniformly distributed

load

Gratings with closed and sandwich surface

Depending on the selected mesh type, the load values of gratings manufactured with closedand sandwich surface increase from a minimum of +35% up to +200% compared to the loadvalues of the same mesh type with open surface (if you need to define correct load values forspecific applications please contact our Technical Department).


FRP Guardrails

FRP GuardrailsManufactured with the pultrusion process (heat polymerization of a profile drawnthrough a die), the fiberglass reinforced polyester guardrail shapes contain up to70% glass fibers, guaranteeing extraordinary mechanical properties to the system(superior to those of steel on a weight to weight comparison). The guardrail systemis composed of various standard elements: vertical posts, fixing bases, varioussections of shapes of 6 Mts. lengths.

Main Features

High mechanical resistanceLight weightEasy installation and fabricationElectrical and thermal insulationMaintenance Free

FRP Vertical Ladders

FRP Vertical LaddersCorrosion proof laddersManufactured with isophthalic resin putruded profiles. Fixed vertical ladders are suitable for any application in corrosive environments.

Excellent mechanical resistanceThe excellent mechanical resistance and the anti-slip rung profile, make the ladders ideal forintensive use. Model 470 is in conformity with EN 14122 standards.

Easy to useSupplied in the requested lengths (up to 6 m in one part, beyond 6 m, in two parts). With or without fixing plates, with or without safety cage, they can be adapted to any application. Their lightweight structure further helps easy installation.

FRP Structures

FRP StructuresA complete range of structural shapes...Square shapes, U, I, H sections. The production range starts from a 50x50 square shapeup to a large 200x200 H shape, a thousand times more rigid and unique in its kind (seetechnical sheet).

Manufactured by the pultrusion process (continuous wetfiber rovings and mat are pulledthrough a series of forming guides and heated) the structural shapes have extraordinaryrigidity. corrossion resistance and lightweight. The Ticomm & Promaco structural shapesare designed to ensure complete reliability and safety.Manufactured by the pultrusion process(continuous wetfiber rovings and mat are pulledthrough a series of forming guides and heated) the structural shapes have extraordinaryrigidity, corrosion resistance and lightweight. The Ticomm & Promaco structural shapesare designed to ensure complete reliability and safety.Corrosion resistance: without problemThe thermosetting isophthalic resin system normally used guarantees excellent corrosionresistance (other resin systems available on demand). Ticomm & Promaco stabilizes thebeams against U.V.ray exposure by adding a resin-rich synthetic veil on the external surface;this barrier increases the volume of resin and avoids leaving the fibers in plain view. Inmany cases Ticomm & promaco also incorporates a C type glass while avoiding the useof additives which often decrease the chemical properties.

Technical characteristics


RESIN SELECTION

Eurograte pultruded gratings are manufactured using two resin formulations that aresuitable for most of the industrial applications. Both resin systems provide superiorcorrosion resistance compared to metal gratings.

ISOPHTHALIC RESIN SYSTEM

VINYL ESTER RESIN SYSTEM

This resin formulation provides a flame spread rating of less than 25 according toASTM E84norm. Gratings in this resin formulation are designed to be used inmoderate corrosive environments where splashes and spills of harsh chemicalsare likely. Standard color is yellow.

This resin formulation provides a flame spread rating of less than 25 according toASTEM E84 norm. Gratings in this resin formulation are designed to be used in highlycorrosive environments where the contact of harsh chemicals is frequent. Standardcolor is grey.

FRP Pultruded

Gratings

SELECTION & DESCRIPTION

"I H=25,4 15.2 mm 38.1 mm 22,9 mm 11.0 60%

38.1 mm 50.8 mm 12,7 mm 12.2 33%

15.2 mm 30.5 mm 15,2 mm 19.1 50%

15.2 mm 38.1 mm 22,9 mm 16.1 60%

25.4 mm 38.1 mm 12,7 mm 19.5 33%

25.4 mm 50.8 mm 25,4 mm 15.1 50%

"T" H=25,4

"I" H=38,4

"I" H=38,1

"T" H=50,8

"T" H=50,8

GI-6010

GT-3310

GI-5015

GI-6015

GT-3320

GT-5020

CODE BEARING BAR BAR WIDTH BAR SPACING OPEN SPACE WEIGHT KG/M2 OPEN AREA


SPAN CODE

GI-5015 <1 <1

<1 <1

<1 1.2

<1 1.5

1.0 2.0

1.3 2.6

1.4 2.8

3.61.8

2.7

3.5

3.6

4.6

5.4

7.0

7.2

9.2

GT-6015

GI-5015

GI-5015

GI-5015

GI-5015

GI-5015

GT-6015

GT-6015

GT-6015

GT-6015

GT-6015

LoadsIn case of pedestrian loads we suggest selecting a grating with deflection limited to the lesser of 10mm or span divided by 125. For a stiffer feeling, limit deflectionto span divided by 200.

150 300

4.2

5.4

8.1

10.5

<1

<1

1.8

2.3

3.0

3.9

450

<1 1.5 1.8 2.1 4.2 8.4

<1 1.9 2.3 2.7 5.4

8.2

10.4

14.0

5.2

7.0

9.1

9.8

12.6

10.8

2.4 3.0 3.6 4.1

3.0 3.8 4.6

6.0

7.8

8.4

10.8

4.0 5.0

6.5

7.0

9.0

13.5

5.2

5.6

7.2

10.8

14.0

14.410.8

13.8

600 750 900 1050 2100 4200

LOAD TABLES 38.1 MM THICKNESS GRATINGS

LOAD TABLES 25.4 MM THICKNESS GRATINGS

SPAN CODE

GI-6010 <1 <1

<1 <1

<1 1.8

<1 2.5

2.4 4.8

3.2 6.5

4.2 8.5

5.6 11.2

GT-3310

GI-6010

GT-3310

GI-6010

GT-3310

GT-3310

GI-6010

250 500

12.7

<1

1.3

2.7

3.7

7.2

9.7

750

1.2 1.5 1.8 2.4 3.0 3.6

1.7 2.2 2.6 3.4 4.4 5.2

3.6 4.5 5.4 7.2 9.0 10.8

5.0 6.2 7.4 10.0 12.4

9.6 12.0 14.4

13.0

1000 1250 1500 2000 2500 3000

UNIFORMLY DISTRIBUTED LOAD (KG/M2) - DEFLECTION IN MM

600

800

1000

1200

SPAN CODE

GI-6010 <1 1.3

<1 1.4

1.8 3.6

2.0 4.0

2.8 5.6

3.1 6.2

4.1 8.2

4.5

5.8

6.4

9.0

11.6

12.8

GT-3310

GI-6010

GT-3310

GI-6010

GT-3310

GT-3310

GT-3310

GI-6010

GI-6010

150 300

12.3

13.5

1.9

2.1

5.3

5.9

8.4

9.3

450

2.6 3.2 3.8 4.5 8.9

2.8 3.5 4.2 4.9 9.8

7.2 9.0 10.6 12.6

8.0 10.0 11.8

11.2 14.0

12.4

600 750 900 1000 2100 4200

CONCENTRATED LINE LOAD (KG/M) - DEFLECTION IN MM

CONCENTRATED LINE LOAD (KG/M) - DEFLECTION IN MM

600

800

1000

1200

1400

SPAN CODE

GI-5015 <1 <1

<1 <1

<1 1.1

<1 1.4

1.2 2.4

1.5 3.0

2.1 4.3

5.52.7

4.0

5.1

6.7

8.5

8.0

10.2

13.5

17.0

GT-6015

GI-5015

GI-5015

GI-5015

GI-5015

GI-5015

GT-6015

GT-6015

GT-6015

GT-6015

GT-6015

250 500

6.5

8.2

12.0

15.3

<1

<1

1.6

2.1

3.5

4.5

750

<1 1.1 1.2 1.7 2.2 2.5

1.1 1.4 1.6 2.2 2.8

5.5

7.0 8.45.6

9.5

12.0

3.2

2.2 2.7 3.3 4.4 6.6

2.8 3.5 14.2

7.1

9.0

12.9

16.4

4.7 5.9

7.5

10.8

13.7

6.0

8.7

11.0

1000 1250 1500 2000 2500 3000

UNIFORMLY DISTRIBUTED LOAD (KG/M2) - DEFLECTION IN MM

800

1000

1200

1400

1600

1800

800

1000

1200

1400

1600

1800

FRP Pultruded

Gratings

Load-deflection informationThe load data indicated in the tables represent typical values calculated by our testing laboratory and are intended as a selection guide of the best suited grating.The load values could have a variation of +/-10%.


Steel Hand Rails


Ferrotech can supply Handrail system comprisingof stanchions, rails bends, Kickplates, Grating and Stairtreads.

APPLICATIONSStairways, Bridges, Parking stations, Schools, CommercialPremises, Fire escapes, Gangways, Power stations, Sewagetreatment works and Marinas.

SPECIFICATIONSOD - 48.3 mmNB - 40 mmWT - 3.2 mm or 4 mmBall Size - 76 mm OD

Cable Trays

MANUFACTURING STANDARDS:

Our products are manufactured as per the international standards

BS50085, NEMA VE 1, BS/IEC 61537, ASTM & UL.

MANUFACTURED IN

(a) Mild Steel (Finish Hot Dip Galvanised, Painted & Powder Coated),

(b) Pre Galvanised Steel, (c) Aluminium,

(d) Stainless Steel (e) FRP/GRP

Cable trays & Ladders supplied in standard lengths of 2.44 & 3.00 Meters.

Cable Ladders also available in special lengths of 3.858, 6.000 & 7.315 on request.

CABLE LADDER

Cable Ladders Fabricated with Outside & Inside flange

Specifications :

Width : 50/75/100/125/150/200/225/250/300/400 UPTO 1200 mm

Height : 50/75/100/125 & 150 mm

Thickness : 1/1.2/1.5/2 &2.5mm

Rung type: Slotted C Section / Pipe Rung

Rung spacing : 150/250 &300

Fittings :- Horizontal Cross, Horizontal Bend ( 30°,45°,60° & 90°),

Horizontal TEE, Vertical TEE,90° Internal & External Riser,

Left Hand Reducer, Right Hand Reducer, Adjustable Bend etc

Accessories:- Standard Connectors, Adjustable / Expansion Connectors, Vertical &

Horizontal Adjustable Connectors ,

Hold Down Clamp, Guide Clamp, Bonding Jumper

Cover Type:- Plain Cover, Flanged Plain Cover, Louvered Cover &

Flanged Louvered Cover(Thickness 1.0,1.2,1.5&2.0mm)

CABLE TRAY

Types:-

Plain Flange Type , Inside Return Flange,

Outside Return Flange, "C"- Profile Flange

Specifications:

Width : 50/75/100/125/150/200/225/250/300/400 UPTO 1200 mm

Height : 25/50/75/100mm

Thickness : 1/1.2/1.5 &2 mm

Fittings :- Horizontal Bend (90° & 45°), 90° Inside & Outside Riser,

Straight Reducer, Right Hand Reducer, Left Hand Reducer, Horizontal Cross,

Horizontal TEE, Unequal Cross & TEE.

Accessories:- Standard Connectors, Vertical & Horizontal Adjustable Connectors ,

Hold Down Clamp, Fish Plate , Side Cover Connector, Neck Screw, Right Angle

Connector, Bonding Jumper

Cover Type:- Plain Cover, Flanged Plain Cover, Louvered Cover &

Flanged Louvered Cover(Thickness 1.0,1.2,1.5&2.0mm)


Composite Metal

Decking Profiles

Profiles to suit your design specification We offer a range ofprofiles in gauges varying from 0.9mm to 1.2mm; all profilesare manufactured from steel strip to BSEN 10143 and BSEN10147 with guaranteed minimum yield strengths of 280 and

2 2350 N/mm and a minimum coating mass of 275g/m

The differing advantages of each profile gives the flexibility to meet specific projects requirements.

Metal Decking R51 Metal Decking TR60 Metal Decking TR80

The R51 offers the greatest slab load bear-ing capacity in our range. In addition, the150mm rib spacing of this profile allows thegreatest number and optimum performanceof shear studs to maximise the benefits ofcomposite beam design. Using this profileslabs as thin as 100mm can be constructed,whilst still achieving a typical 1 hour firerating.

The TR60 profile gives high span capabilitiesat a competitive price. Due its 1.0mcover width, this profile can be installedquickly making it a popular choice for manydesign engineers. The typical 1 hour firerating can be achieved with a 130mm slab.

The TR80 profile has a concrete volume upto 25% less than other profiles. The typical 1hour fire rating can be achieved with a140mm slab.

The TR80 provides the greatest spanningcapabilities of our range. An excellent qualityprofile which is also priced competitively, theTR80 delivers strength as well as high speedof installation.

CONCRETE SLAB

MESH REINFORCEMENT (or TAB-Deck)

R51 DECK PROFILE

END TAPE

19mmO x 95mm SHEAR STUD

EDGE TRIM AND RESTRAINT STRAP

FIXINGS TO SUITPROJECT SPECIFICATIONS

50mm min. BEARING FORTRIM ONTO STEELWORK

50mm min. BEARING FORDECK ONTO STEELWORK

CONCRETE SLAB


TR60 DECK PROFILE

19mm O x 120mm SHEAR STUD


0.7mm END CAP




CONCRETE SLAB


TR60 DECK PROFILE

19mm O x 95mm SHEAR STUD


0.7mm END CAP





Through deck welding is also possible wherethe Headed shear connector is welded througha formed galvanized sheet onto a steel beam.Concrete is then poured over the formed sheetand the shear connectors.

Shear Connector

Studs

Refractory Anchors

Headed Shear Connector Studs

Tensile strength

Technical Data (Shear Connectors)

Minimum 450 N/mm2

Minimum 350 N/mm2

20%min.

Upto 0.08 - 0.18

0.30 - 0.60

0.15 - 0.30

Yield point

Elongation

Manganese

Silicon

Carbon

Dimensions of shear connectors(All dimensions are in mm.)

We can provide different lengths against order.

Stud Dia. (d1) Stud Dia. (d2) Length (L)

50/75/100/125

75/100/125/135

75/100/125/135

75/100/125/135

16 32

19 32

22 35

25 40

d2

d1

L

Brick anchoring systemsB-01 Staples

Concrete Anchoring systems for one component liningsC-01 Split ‘Y’ Anchor C-02 Standard’V’ Anchors.C-03 Corrugated bullhorn (stud welding)C-04 Heavy corrugated bullhornC-05 Corrugated ‘H’ AnchorsC-06 Flat ‘Y’ AnchorsC-07 Flat ‘E’ AnchorsC-08 Corrugated ‘V’ stripC-09 Corrugated ‘V’ AnchorsC-10 TW Movable AnchorsC-11 Corrugated bullhorn (hand welded)C-12 Speed cells,Eco-vinsand C-Mix.C-14 Round Y Anchors

Concrete Anchoring systems for two composite linings D-01 Twin Pin AnchorD-02 ‘V’ on Nut SystemD-03 Threaded V and CH anchors

Ceramic Fibre anchoring systems F-01 P-Pin SystemF-02 Fiberfix SystemF-04 Press On Clip SystemF-05 M A S SystemF-06 Cerafix SystemX-01 Cerascrew


Specification List of Welded Wire Mesh

Opening Wire Diameter<BWG>In inch In metric unit(mm)

1/4” x 1/4”

3/8” x 3/8”

½” x ½”

5/8” x 5/8”

3/4” x 3/4”

1” x ½”

1-1/2” x 1-1/2”

6.4mm x 6.4mm

10.6mm x 10.6mm

12.7mm x 12.7mm

16mm x 16mm

19.1mm x 19.1mm

25.4mm x 12.7mm

38mm x 38mm

22,23,24

19,20,21,22

16,17,18,19,20,21,22,23

18,19,20,21

16,17,18,19,20,21

16,17,18,19,20,21

14,15,16,17,18,19

1” x 1” 25.4mm x 25.4mm 8,9,10,11,12,13,14

1” x 2” 25.4mm x 50.8mm 14,15,16

2” x 2” 50.8mm x 50.8mm 3,4,5,6,8,10,12

Technical Note: 1, Standard Sheet size: 1.2 x 3.0mm 2, Standard rolllength: 30m; width: 0.5m to 1.8m, Special sizes available at request,packing: in waterproof paper in rolls. Custom packing available at request.

Galvanized Welded Mesh Panel is made of superior quality welded Mesh,with flat even surface, firm structure, be used extensively in building, food,agriculture and so on.

Assortments available

FHot-dip galvanized after welding

FHot-dip galvanized before welding

FElectro galvanized after welding

FElectro galvanized before welding

FPVC coated

FStainless Steel welded wire mesh

FCrimpled wire mesh

FWoven wire mesh

FHex. wire netting in normal twist

FHex. wire netting in reverse twist

before welding

FPVC coated after welding

Galvanized Fencing Mesh


2” x 3”

3” x 3”

2” x 4”

4” x 4”

50mm x 75mm

75mm x 75mm

50mm x 100mm

100mm x 100mm

2.0mm,2.5mm,1.65mm

2.67mm,2.41mm,2.11mm,1.83mm,1.65mm

2.11mm,2.5mm

2.0mm,2.5mm - 6.0mm

Technical Note.

1. Standard Sheet size 1.2 x 3.0mm2. Standard roll length:30m;width: 0.5m to 2.1m3. Special sizes available at request.3. Packing: in waterproof paper in rolls. Custom packing available at request.

PVC Coated Welded Mesh


1/2” X 1/2”

3/4” X 3/4”

1” X 1”

12.7mm x 12.7mm

19mm x 19mm

25.4mm x 25.4mm

16,17,18,19,20,21

16,17,18,19,20,21

10,12,14,16,18,20

Technical Note:

1,Standard roll length: 30m;width: 0.5m to 2.0m

2,Special sizes available at request

3,Packing: in waterproof paper in rolls. Custom packingavailable at request.

Welded

Wire Mesh


DUBAI ENTERPRISES MODERN TRADING

P.O.Box : 1688, P.C. 133, Al-Khuwair, Sultanate of Oman

Email : [email protected]

Tel : +968 24502841, Fax : +968 24502842.

FERROTECH INTERNATIONAL FZE

P.O.Box : 21023, Ajman, E-19, Ajman Free Zone, United Arab Emirates

E-mail : [email protected] / [email protected]

Tel : +971 6 740 11 37, Fax : +971 6 740 11 38

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FERROTECH STRUCTURALS (INDIA) PVT. LTD.

1/39-6-3, North Parade Road, St. Thomas Mount, Chennai - 600 016.

Tamilnadu, INDIA. Email : [email protected]

Ph : +91 - 44 - 4351 9653 Fax : +91 - 44 - 4351 9652

Web : www.ferrotechindia.net

Gratings Brochure

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