TMTM

Products and Solutions for Heat Exchangers

Producers

“Our mission is to support you

in improving all aspects of your brazing

processes... time and time again.”

Welcome

Pietro Galliani Brazing S.p.A is a leading European producer of brazing products with now the widest range of products in Europe.

We have a 100 year history in the metal working industry. Ing. Pietro Galliani started our company more than 100 years ago in Vergato, Italy. He was a pioneer in the metal working industry and this strong pioneering spirit is still with us today.

Since 1995 we have been developing and producing high qualiy brazing products, while at the same time studying the processes of our customers.

Our mission is to support you in improving all aspects of your brazing processes... time and time again.

This short guide is intended to give you a brief overview of PGB product and solutions for your industry and to maybe provide you with new ideas or solutions for current future problems in the area of brazing.

For more information and support please contact your local Pietro Galliani Brazing sales technician or send us an e-mail at info@pietrogallianibrazing.com.

We look forward to working with you.

Brian Vilborg

Pietro Galliani Products are

made in Italy!

PGB Copper Phos Alloys are amongst the highest quality in

the market.

Our NEW Extra Quality out performs standard quality and can immediately reduce leaks and problems with brazing in-

consistent gaps.

Copper to Copper Joining

Standard copper to copper joining it most efficiently done without the use of flux. The group of alloys that enable this is the Copper Phosphorus based materials (CuP).

Depending on the joint design, application and enviroment of operation varias quantities of silver are added (CuPAg).

Many of the CuP and CuPAg alloys are normed. One big misconception is that all materials in the same norm have the same performance.

Pietro Galliani Brazing provides normed products with excellent performance.

Pietro Galliani Products are

made in Italy!

Item Ag Cu P Others Melting Range °C

Oper-ating

Temp. °C

Density g/cm3

Tensile Streng-

ht N/mm2

AWS A5.8

EN 1044

DIN 8513

NFA 81-362

BS 1845

Galflo Cu P 5 - 95 5 - 710-920 790 8,2 250 BCup-1 - - - -

Galflo Cu P 6 - 94 6 - 710-880 730 8,1 250 - CP 203 L - Cu p 6

- CP 6

Galflo Cu P 7 - 93 7 - 710-820 720 8,1 250 BCup-2 ° CP 202 L - Cu p 7

07B1 CP 3 °

Galflo Cu P 7 Sn 7 - 86 7 Sn 7 645-695 690 8 250 - - - - -

Galflo Cu P 8 - 92 8 - 710-750 710 8 250 - CP 201 L - Cu p 8

08B1 -

Galflo Cu P Ag 0,4 0,4 93,6 6 - 710-740 710 8,1 250 - - - - -

Galflo Cu P Ag 1 1 92,5 6,5 - 645-810 710 - 8,1 250 - CP 105 - 07B2

Galflo Cu P Ag 2 2 91,8 6,2 - 645-800 710 8,1 250 BCup-6 ° CP 105 L - Ag 2 P

06B1 CP 2 °

Galflo Cu P Ag 5 5 88,8 6,2 - 645-810 710 8,2 250 BCup-3 CP 104 L - Ag 5 P

06B2 CP 4

Galflo Cu P Ag 5a 5 88,3 6,7 - 645-770 710 8,2 250 BCup-7 - - - -

Galflo Cu P Ag 15 15 80,3 4,7 - 645-800 710 8,4 250 - CP 102 - - CP 1 °

Galflo Cu P Ag 15a 15 79,8 5,2 - 645-790 710 8,4 250 BCup-5 CP 102 L - Ag 15 P

05B1 -

Galflo Cu P Ag 18 18 75 7 - 645-670 660 8,6 250 - CP 101 - 07B4 -

Note: The above table give standard compositions and technical informations. Additionally, we offer these alloys in var-ous forms and finishing processes. We offer extruded quality, drawn quality, and the FAMOUS PGB EXTRA Quality. (see

the pictures at the top and bottom of this page.)

PGB Copper Phos Alloys are amongst the highest quality in

the market.

Our NEW Extra Quality out performs standard quality and can immediately reduce leaks and problems with brazing in-

consistent gaps.

Galflo™ CuP and CuPAg Alloys

Standard Qualiy - Less Wetting - More Porosity

PGB Extra Quality - More Wetting - Less Porosity

Copper to Steel Joining

Copper to steel brazing can be a difficult process if the wrong materials are used.

For this joint a strong flux is required, as often overheating of the steel occurs.

The thermal higher conductivity of Cu combinded with the normally thick mass of steel cause makes it easier to over heat the steel.

Additionally, the thermal expansion of both materials are different, this means that thermal stresses will be present.

These two known problems are solved with GalFlo Silver Alloys. PGB silver alloys conform to Rohs stand-ards and REACH registered.

C

Copper to Brass Joining

Copper to brass brazing is generally easier than copper to steel, but more difficult that copper to copper joints.

A flux is still required to insure perfect flow and wetting of both materials.

Silver containing alloys are best fit for this kind of brazing. This type of joint general requries higher mechanical strength.

Many times the joint gaps are large and leaks can occure. For this reason Galflo 34Snsi is often the best solution.

Copper to Steel Joining

Copper to steel brazing can be a difficult process if the wrong materials are used.

For this joint a strong flux is required, as often overheating of the steel occurs.

The thermal higher conductivity of Cu combinded with the normally thick mass of steel cause makes it easier to over heat the steel.

Additionally, the thermal expansion of both materials are different, this means that thermal stresses will be present.

These two known problems are solved with GalFlo Silver Alloys. PGB silver alloys conform to Rohs stand-ards and REACH registered.

C

Galflo™ Flux Coated Rods

Are available in several ratios of flux coating for example:

10% Flux12% Flux15% Flux20% Flux

25% Flux30% Flux35% Flux

Consult your Pietro Galliani Salesman for help in selecting the right product for your applications.

Item Ag Cu Zn Sn Oth-ers

Melting Range

°C

Oper-ating Temp

°C

Den-sity g/cm3

Ten-sile

Rec-om-

AWS A5.8

EN 1044

DIN 8513

NFA 81-362

BS 1845

Galflo 01 1 60 39 - * 890-900 900 8,3 350 Bronze - - - - -

Galflo 05 5 55 40 - * 820-870 860 8,4 350 Bronze - Ag 208 L-Ag 5 05 A1 -

Galflo 12 12 48 40 - 0,2% Si 800-830 830 8,5 410 S-Plus - Ag 207 L-Ag 12 - -

Galflo 16 16 50 34 - - 790-830 820 8,6 505 S-Plus - - - - -

Galflo 20 20 44 36 - * 690-810 810 8,7 330 S-Plus - Ag 206 L-Ag 20 20 A1 -

Galflo 25 25 41 34 - - 700-800 780 8,8 420 S-Plus - Ag 205 L-Ag 25 25 A1° -

Galflo 25 Sn 25 40 33 2 - 680-760 750 8,7 420 S-Plus B Ag 37 Ag 108 L-Ag 25Sn 25 A2 -

Galflo 30 30 38 32 - - 650-750 740 8,8 505 S-Plus B Ag 20 Ag 204 L-Ag 30 - -

Galflo 30 Sn 30 36 32 2 - 680-765 750 8,9 460 S-Plus - Ag 107 L-Ag 30Sn - AG21

Galflo 33 33 34 33 - - 700-740 730 8,9 535 S-Plus - - - - -

Galflo 34 Sn 34 36 27 3 - 630-730 710 9 420 S-Plus - Ag 106 L-Ag 34Sn - -

Galflo 35 35 32 33 - - 680-750 740 9 430 SHT B Ag 35 - - - -

Galflo 38 Sn 38 31 29 2 - 650-720 710 8,8 430 SHT B Ag 34 - - - -

Galflo 40 Ni 40 30 28 - Ni 2 670-780 780 8,9 350 SHT B Ag 4 - - - -

Galflo 40 Sn 40 30 28 2 - 640-700 690 9,1 430 SHT B Ag 28 Ag 105 L-Ag 40Sn - AG20

Galflo 43 43 37 20 - - 690-770 760 9,1 400 SHT - - - - AG5

Galflo 44 44 30 26 - 0,2% Si 675-735 730 9,1 545 SHT - Ag 203 L-Ag 44 44 A1 -

Galflo 45 45 30 25 - - 660-740 730 9,2 410 SHT B Ag 5 - - 45 A2° -

Galflo 45 Sn 45 27 25 3 - 640-680 670 9,2 350 XLT B Ag 36 Ag 104°

L-Ag 45Sn - -

Galflo 49 Ni Mn 49 16 23 - Mn 7,5 Ni 4,5 625-705 690 8,9 350 T XLT B Ag 22 Ag 502 L-Ag 49 - AG18

Galflo 50 Ni 50 20 28 - Ni 2 660-750 740 9 450 XLT B Ag 24 - - - -

Galflo 55 Sn 55 21 22 2 - 620-660 650 9,4 390 SLT - Ag 103 L-Ag 55Sn° - AG14

Galflo 56 Sn 56 22 17 5 - 620-650 650 9,5 410 SLT B Ag 7 Ag 102 - 56 A1 -

Galflo 60 A Sn 60 30 - 10 - 600-720 710 - 420 SLT B Ag 18 - - 60 A1 -

Galflo 60 Sn 60 23 14 3 - 620-685 680 9,6 420 SLT - Ag 101 L-Ag 60Sn - -

Galflo 65 65 20 15 - - 670-720 710 9,6 400 SLT B Ag 9 Ag 201° - 63 A1° -

Galflo 72 72 28 - - - 779 779 10 350 SLT B Ag 8 Ag 401 - 72 A1 AG7

Galfo™ Silver Alloys (Cadmium Free and Rohs complaint upon re-quest)

Galflo™ Aluminium to Aluminium Joining

Brazing Al to Al can be very difficult and frustrating especially if your company is making the transition from copper brazing to aluminium brazing.

Pietro Galliani Brazing S.p.A has developed several products to make aluminium join-ing easier.

Problem 1:Aluminium melts at the relatively low temperature of 660C °and does not change colour when heated. This leads to very fast melting of the aluminium when trying to braze.

PGB Solution 1: Galffux™ ALnc is a not corrosive flux paste that works as a tem-perature indicator. How it works:: Galflux Alnc is designed to be liquid at 560C°, this is just below the temperature of the market standard brazing alloys Galflo™ Al12, this alloys the brazer to see when he needs to apply the alloy and reduces the heat input.

Galflo™ Aluminium to Copper Joining

Brazing Aluminium to Copper is often more difficult to join than aluminium to aluminium.

Pietro Galliani Brazing S.p.A has developed several products to make aluminium to copper joining easier.

Problem 3: Copper and Alumiumiun have different thermal conductivity which makes controlling the temperature of both materials difficult. This often leads to over heating of the copper and results in melting of the aluminium.

PGB Solution 3: Galflux™ Znnc is a non corrosive flux paste that is active at 440C°. When used with Galflo™ ZnAl2, or Galflo™ ZnAl15, a perfect Cu-Al joint can be achieved.

Galflux™ Alcor For Joining AlMg alloys

Problem 2: In order to increase the strenght of Al alloys Mg is added. If the Mg content is too high normal non-cor-rosive fluxes no longer function correctly.

PGB Solution 2: Galflux™ AlNcExtra is a non corrosive flux paste that can be used to braze AlMg alloys with up to 1,2% of Mg, above 1.2%Mg a corrosive flux must be used. We recommend Galflux™ AlcorExtra.

Aluminium to Aluminium brazed with Galfux™ AlNc Paint and Galflo™ Al12 Alloy

Aluminium to Aluminium brazed with Galfux™ AlNc Paste and Galflo™ Al12 Alloy

Aluminium to Copper brazed with Galfux™ ZNnc Paste and Galflo™ ZnAl2 Alloy

Aluminium to Copper brazed with Galfux™ ZNnc paste and Galflo™ ZnAl22 Alloy

Item Melting Range °C

Operating Temp °C

Application

Galflux™ Alnc 570-600 588Non-Corrosive Fllux for use with Galflo™ AlSi12, active on materials with less than

.5% Mg

Galflux™ AlncExtra 570-600 588Non-Corrosive flux designed to work with Galflo™ AlSi12 on materials with

.5-1,2% Mg

Galflux™ Alcor 420-460 380Corrosive Flux for use with Galflo™

AlSi12, where flux residues must be removed or where Mg content is over

1,2%

Galflux™ ZnNc 382-450 830 Non-Corrosive Aluminium Flux for use with Galflo™ ZnAl2, ZnAl15, ZnAl22

Item Al Si Zn Cu Others Melting Range °C

Operating Temp °C

Galflo™ AlSi12 88 12 - - - 570-576 588Galflo™ ZnAl2 2 - 98 - - 382-405 380Galflo™ ZnAl15 15 - 85 - - 382-450 830Galflo™ ZnAl22 22 - 78 - - 420-460 820

Item Melting Range °C

Operating Temp °C

Application

Galflux™ Alnc 570-600 588Non-Corrosive Fllux for use with Galflo™ AlSi12, active on materials with less than

.5% Mg

Galflux™ AlncExtra 570-600 588Non-Corrosive flux designed to work with Galflo™ AlSi12 on materials with

.5-1,2% Mg

Galflux™ Alcor 420-460 380Corrosive Flux for use with Galflo™

AlSi12, where flux residues must be removed or where Mg content is over

1,2%

Galflux™ ZnNc 382-450 830 Non-Corrosive Aluminium Flux for use with Galflo™ ZnAl2, ZnAl15, ZnAl22

GalFlo™ Aluminium Joining Alloys

GalFlux™ Aluminium Joining Fluxes

KEEP YOUR FACTORY

SAFE!!!

Pietro Galliani Brazing S.p.A

Presents:

Non-Toxic and

Non-CorrosiveGas Flux

NO MORE TOXIC PRODUCTS IN OUR FACTORIES

Item Melting Range °C

Operating Temp °C

Description

Galflux™ GF “ECO” 100 800-1000 900 High Concentration FluxGalflux™ GF ” ECO” 88 800-1000 900 88% Concentrage FluxGalflux™ GF ”ECO” 50 800-1000 900 50% Concentration Flux

Galflux™ GF 70 800-1000 900 Standard Methanol Based flux 70% strenght

GalFlux™ GF “ECO”

Item Cu Zn Ni Si Others Melt-ing

Range °C

Operat-ing

Temp. °C

Density g/cm3

Tensile Streng-ht N/mm2

Recom-mended

Flux

AWS A5.8

EN 1044

DIN 8513

BS 1845

NFA 81-363

Galflo OT Ni 10

48 41,8 10 0,2 - 920-935

935 8,7 480 BRONZE RB-CuZn

D

Cu 305

L-Cu- CZ 8 49 C1

Galflo OT Ni 4,4

57 38 4,4 0,2 Mn0,4 860-910

910 - 400 BRONZE - - - - -

Galflo OT Ni 6

53 40,3 6,3 0,2 Mn0,2 870-910

910 9 420 BRONZE - - - - -

Galflo OT Si 59,5 40,25 - 0,25 - 890-900

900 8,4 370 BRONZE - Cu 301

L-Cu Zn 40

CZ6 60C1

Galflo OT Si Mn

59 39,25 - 0,15 Mn0,8 Sn0,8

865 890 8,4 380 BRONZE RB-CuZnC

Cu 306°

L-Cu Zn 39

Sn

CZ 7A 60C2

GalFlo™ Brass Alloys (Commonly used with GF “ECo”)

TM

Pietro Galliani Brazing S.p.A

40038 Vergato, Bologna, Italytelephone: +39 051 910061 fax: +39 051 7417223

email: info@pietrogallianibrazing.com

www.pietrogallianibrazing.com