FINITE ENGINEERING FORINFINITE POSSIBILITIES

Smart Stainless Pvt. Ltd. has endeavored to give the market the qualities of stainless steel for external applications at a

substantially lower cost. Launching for the first time in India, Smart brings you SCP (Stainless Composite Pipe); the latest

technology to fuse the cost effective proven performance of Mild steel with the spectacular corrosion resistant finish of

Stainless steel, resulting into a revolutionary product with superior qualities of stainless steel tubes in terms of usability like

Corrosion resistant (no rusting)

Weatherproof finish (no maintenance ever)

Amazingly adaptable (Bend, Mend, Weld)

Ever shining (Mat or Mirror finish)

Economical solution (the ‘in budget’ stainless steel)

STAINLESS Steel Pipes & Tubes

Stainless Steel is a metal with a number of great qualities. It is bright and attractive. It

is easy to clean. It emits an aura of quality. And it is as 'stainless' as its name suggests

giving it an everlasting shine . SS ornamental tubing market is growing exponentially

because of substantially increasing usage of SS in architecture, building &

construction (ABC) segment. It is used by Architects, City planners, Airport Designers, Rail coach Manufacturers,

Furniture manufacturers, etc. to give a place aesthetic beauty, longevity combined

with strength. But all of this comes at a HUGE COST, both commercial as well as

environmental.

The hosting of Commonwealth games in India in 2010, the retail revolution,

modernization of cities, bus stops, railways, airports and the economic growth of

India has contributed to the rapid growth of the stainless steel tube industry. Against

the steady and robust growth in the economy, the stainless steel usage in the country #has also been growing at a faster clip of about 13%.

Gone are the days when one had to pay a hefty price for the same. Smart’s Stainless

Composite tubes are a revolutionary breakthrough in the Stainless Steel Tube market.

# New development in the application of Stainless Steel in India - By Ramesh R. Gopal, Executive Director, Indian Stainless Steel Development Association

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

* * * * * * * *

MISSIONTO MANUFACTURE & SUPPLY SS COMPOSITE TUBES OF RIGHT QUALITY

AT REASONABLE COST.

TO PROVIDE ALL TECHNICAL SUPPORT TO OUR CUSTOMER TO USE OUR TUBES IN THEIR APPLICATIONS IN AN APPROPRIATE MANNER.

TO REPLACE SS TUBES & MS TUBES IN ORNAMENTAL APPLICATION AS THE MOST COST ECONOMIC PRODUCT ON LIFE CYCLE COST BASIS.

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL ORNAMENTAL TUBING.

********

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

********

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

********

VisionTo become the defining standard for stainless steel

ornamental tubing.

********

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

********

MISSIONTO MANUFACTURE & SUPPLY SS COMPOSITE TUBES IN CONFORMITY

WITH APPLICABLE STANDARDS AT REASONABLE COST.

TO PROVIDE ALL TECHNICAL SUPPORT TO OUR CUSTOMER TO USE OUR TUBES IN THEIR APPLICATIONS IN AN APPROPRIATE MANNER.

TO REPLACE SS TUBES & MS TUBES IN ORNAMENTAL APPLICATION AS THE MOST COST ECONOMIC PRODUCT ON LIFE CYCLE COST BASIS.

********

Smart Stainless Pvt. Ltd. has endeavored to give the market the qualities of stainless steel for external applications at a

substantially lower cost. Launching for the first time in India, Smart brings you SCP (Stainless Composite Pipe); the latest

technology to fuse the cost effective proven performance of Mild steel with the spectacular corrosion resistant finish of

Stainless steel, resulting into a revolutionary product with superior qualities of stainless steel tubes in terms of usability like

Corrosion resistant (no rusting)

Weatherproof finish (no maintenance ever)

Amazingly adaptable (Bend, Mend, Weld)

Ever shining (Mat or Mirror finish)

Economical solution (the ‘in budget’ stainless steel)

STAINLESS Steel Pipes & Tubes

Stainless Steel is a metal with a number of great qualities. It is bright and attractive. It

is easy to clean. It emits an aura of quality. And it is as 'stainless' as its name suggests

giving it an everlasting shine . SS ornamental tubing market is growing exponentially

because of substantially increasing usage of SS in architecture, building &

construction (ABC) segment. It is used by Architects, City planners, Airport Designers, Rail coach Manufacturers,

Furniture manufacturers, etc. to give a place aesthetic beauty, longevity combined

with strength. But all of this comes at a HUGE COST, both commercial as well as

environmental.

The hosting of Commonwealth games in India in 2010, the retail revolution,

modernization of cities, bus stops, railways, airports and the economic growth of

India has contributed to the rapid growth of the stainless steel tube industry. Against

the steady and robust growth in the economy, the stainless steel usage in the country #has also been growing at a faster clip of about 13%.

Gone are the days when one had to pay a hefty price for the same. Smart’s Stainless

Composite tubes are a revolutionary breakthrough in the Stainless Steel Tube market.

# New development in the application of Stainless Steel in India - By Ramesh R. Gopal, Executive Director, Indian Stainless Steel Development Association

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

* * * * * * * *

MISSIONTO MANUFACTURE & SUPPLY SS COMPOSITE TUBES OF RIGHT QUALITY

AT REASONABLE COST.

TO PROVIDE ALL TECHNICAL SUPPORT TO OUR CUSTOMER TO USE OUR TUBES IN THEIR APPLICATIONS IN AN APPROPRIATE MANNER.

TO REPLACE SS TUBES & MS TUBES IN ORNAMENTAL APPLICATION AS THE MOST COST ECONOMIC PRODUCT ON LIFE CYCLE COST BASIS.

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL ORNAMENTAL TUBING.

********

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

********

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

********

VisionTo become the defining standard for stainless steel

ornamental tubing.

********

VISIONTO BECOME THE DEFINING STANDARD FOR STAINLESS STEEL

ORNAMENTAL TUBING.

********

MISSIONTO MANUFACTURE & SUPPLY SS COMPOSITE TUBES IN CONFORMITY

WITH APPLICABLE STANDARDS AT REASONABLE COST.

TO PROVIDE ALL TECHNICAL SUPPORT TO OUR CUSTOMER TO USE OUR TUBES IN THEIR APPLICATIONS IN AN APPROPRIATE MANNER.

TO REPLACE SS TUBES & MS TUBES IN ORNAMENTAL APPLICATION AS THE MOST COST ECONOMIC PRODUCT ON LIFE CYCLE COST BASIS.

********

“In-budget” STEEL

Smart Tubes can be used to replace:

• Costly stainless steel decorative usage.

• Costly and time consuming coating operation.

• Dull and polluting galvanized & electroplated products.

• Mild steel tubes & structures for a better life cycle cost.

A “Passion” for TUBES

LOW LIFE CYCLE COST (LCC)

LOW MAINTENANCE

HYGIENIC

CORROSION RESISTANCE

STRENGTH

FIRE RESISTANCE

LOW TEMPERATURE TOUGHNESS

STRUCTURALLY AESTHETIC

COLD FORMABILITY

SURFACE FINISH OPTIONS

EXISTING DESIGN CODES

100% RECYCLABLE

Steel Fabrication has for many years been a balance of need, performance,

functionality, aesthetics and cost.

Smart Tubes is a unique composite tube made with a combination of Stainless

Steel in grades S304, S316 & structural Mild Steel in grades IS513. These are

available in standard tube sizes in a variety of wall thickness.

There are many reasons for choosing SMART Tubes. They are the ‘in budget’

composite tubes which can be WELDED, BENT, POWDER COATED & have the

original shine, properties & usage of costly stainless steel tubes.

Each industry has its own codes. In marine environments, corrosion resistance is

a priority. In architecture, the aesthetic elegance and self-repairing properties

are much appreciated. In the food and beverage industry, the hygienic

advantages of stainless steel are vital. The combination of strength together with

high fire resistance offers considerable advantages in all kinds of structures.

Corrosion costs a great deal of money and represents around 4% of a country's GDP. SCP can help substitute electroplated,

epoxy coated or painted MS tubes in diverse application and provide a cheapest life cycle cost saving in foreign exchange by

replacing costly SS with MS.

Electroplated MS Tubes VS Stainless Composite Tubes

Electroplated MS Tubes Stainless Composite Tubes

Electroplating may damage in due course of time.

Polluting the environment.

Cannot be welded after electroplating.

Cannot be bent after coating.

Non-polluting.

Can be welded (do local polishing).

Can be bent after polishing.

Lifetime shine.

Growth through “Technological Innovation”

Quality Control:Our quality control standards are comparable to world

standards. Our methods, processes & resources comply

with ISO 9001 & applicable statutory & regulatory

requirements. Our team consists of skilled engineers with

extensive experience in the field of Stainless Tube

manufacturing. Quality assurance begins at the material stage itself.

Material is inspected for chemical composition and tested

for other parameters like mechanical properties, gauge

variation etc. for a total evaluation of the raw material to

ascertain its suitability for the intended end-use-

applications.

QUALITY, our “MANTRA”

At the tube mills, each product for the customer is

processed according to the norms sequenced by the

process control engineers based on stringent international

standards and monitored through uncompromising quality

control tests at every stage.

Mohta group is an 80 years old business house having several manufacturing & service operations. Stainless Composite Pipe

is its latest pioneering endeavor. The journey of hardship, mapped by a vision, has led us to an admirable position of Rs. 200

crore turnover with offices & assets in various cities. We have achieved a distinguished position in the marketplace due to

our ability to innovate, capacity to adapt to the latest technologies & deliver world class products.

WE ARE:Salasar Steel & Power Ltd. (www.sspl-india.com)Power generation, Steel manufacturing & coal beneficiation.

Rotocast Industries Ltd. (www.rotocastgroup.com)Steel shots & grits; Alloy Steel castings.

K.R.Shrilaxmi Deals Pvt. Ltd.Plastic processing.

Learning Spiral Pvt. Ltd. (www.learningspiral.co.in)Digital publishing BPO & Examination & Recruitment services.

Some of our esteemed customers are:SAIL, TISCO, TATA Motors, Hyundai, Hero Motor Corp, Ashok Leyland, Indian Railways, State Electricity Boards, Benaras

Hindu University, amongst others.

“In-budget” STEEL

Smart Tubes can be used to replace:

• Costly stainless steel decorative usage.

• Costly and time consuming coating operation.

• Dull and polluting galvanized & electroplated products.

• Mild steel tubes & structures for a better life cycle cost.

A “Passion” for TUBES

LOW LIFE CYCLE COST (LCC)

LOW MAINTENANCE

HYGIENIC

CORROSION RESISTANCE

STRENGTH

FIRE RESISTANCE

LOW TEMPERATURE TOUGHNESS

STRUCTURALLY AESTHETIC

COLD FORMABILITY

SURFACE FINISH OPTIONS

EXISTING DESIGN CODES

100% RECYCLABLE

Steel Fabrication has for many years been a balance of need, performance,

functionality, aesthetics and cost.

Smart Tubes is a unique composite tube made with a combination of Stainless

Steel in grades S304, S316 & structural Mild Steel in grades IS513. These are

available in standard tube sizes in a variety of wall thickness.

There are many reasons for choosing SMART Tubes. They are the ‘in budget’

composite tubes which can be WELDED, BENT, POWDER COATED & have the

original shine, properties & usage of costly stainless steel tubes.

Each industry has its own codes. In marine environments, corrosion resistance is

a priority. In architecture, the aesthetic elegance and self-repairing properties

are much appreciated. In the food and beverage industry, the hygienic

advantages of stainless steel are vital. The combination of strength together with

high fire resistance offers considerable advantages in all kinds of structures.

Corrosion costs a great deal of money and represents around 4% of a country's GDP. SCP can help substitute electroplated,

epoxy coated or painted MS tubes in diverse application and provide a cheapest life cycle cost saving in foreign exchange by

replacing costly SS with MS.

Electroplated MS Tubes VS Stainless Composite Tubes

Electroplated MS Tubes Stainless Composite Tubes

Electroplating may damage in due course of time.

Polluting the environment.

Cannot be welded after electroplating.

Cannot be bent after coating.

Non-polluting.

Can be welded (do local polishing).

Can be bent after polishing.

Lifetime shine.

Growth through “Technological Innovation”

Quality Control:Our quality control standards are comparable to world

standards. Our methods, processes & resources comply

with ISO 9001 & applicable statutory & regulatory

requirements. Our team consists of skilled engineers with

extensive experience in the field of Stainless Tube

manufacturing. Quality assurance begins at the material stage itself.

Material is inspected for chemical composition and tested

for other parameters like mechanical properties, gauge

variation etc. for a total evaluation of the raw material to

ascertain its suitability for the intended end-use-

applications.

QUALITY, our “MANTRA”

At the tube mills, each product for the customer is

processed according to the norms sequenced by the

process control engineers based on stringent international

standards and monitored through uncompromising quality

control tests at every stage.

Mohta group is an 80 years old business house having several manufacturing & service operations. Stainless Composite Pipe

is its latest pioneering endeavor. The journey of hardship, mapped by a vision, has led us to an admirable position of Rs. 200

crore turnover with offices & assets in various cities. We have achieved a distinguished position in the marketplace due to

our ability to innovate, capacity to adapt to the latest technologies & deliver world class products.

WE ARE:Salasar Steel & Power Ltd. (www.sspl-india.com)Power generation, Steel manufacturing & coal beneficiation.

Rotocast Industries Ltd. (www.rotocastgroup.com)Steel shots & grits; Alloy Steel castings.

K.R.Shrilaxmi Deals Pvt. Ltd.Plastic processing.

Learning Spiral Pvt. Ltd. (www.learningspiral.co.in)Digital publishing BPO & Examination & Recruitment services.

Some of our esteemed customers are:SAIL, TISCO, TATA Motors, Hyundai, Hero Motor Corp, Ashok Leyland, Indian Railways, State Electricity Boards, Benaras

Hindu University, amongst others.

A Photo 2

A Photo 2

Specification

Stainless Steel Composite Tube Weight Base Table

Dimensional Tolerance Tolerances on outside diameter

Our Stainless composite tubes are manufactured in compliance with GB/T 18704-2002, the only available international standard for SCP. An English translation of the same can be download from our website

Delivery surface state

Nominal Outer diameter

Tolerance allowed

Polishing grinding state

<20 0.25

>25~40 0.30

>40~50 0.35

>50~60 0.40

>60~70 0.50

Unpolished state <20 0.30

>25~50 0.40

>50 1.0%D

+-+-+-+-+-+-+-+-

SS304 Composite Tubes vs. “New 200 Series” Stainless Steel Tubes

Chrome-Manganese non-magnetic steel grades have been gaining market lately due to low cost. They are having company

specific names as grades as they do not comply with any national or international standards of stainless steel. But in the

market, they are referred to as SS 200 series material. These materials have Nickel as low as 0.20% and Chromium as low as

13% as against 4-6% Nickel and 17-19% Chromium in actual Stainless Steel of 202 grade. SS 304 grade is superior grade

with 8-10.5% Nickel and 17.5-19.5% Chromium.

These “New 200 series” grades have been developed for certain niche applications like utensils for better drawability and

formability. But due to cheaper prices and non-magnetic characteristics, they are now getting used in applications for which

they are not at all recommended.

In a study done by M/s. International Stainless Steel Forum

(Brussels, Belgium) called “New 200-series Steels An Opportunity

or a threat to the image of Stainless Steel?”, corrosion resistance of

these grades against SS304 has been compared. The lowest grade

Chrome-Manganese steel considered for the study was with 15%

Chromium and 1% Nickel. So, the result with the material currently

sold in Indian market will certainly be much worse than those. We

reproduce here a graph for pitting corrosion resistance from the

study:

Since these grades are non-magnetic and equally shiny in the

beginning, they are not identifiable without sophisticated chemical

testing. This, many times, leads to mislabelling and fraud in the long

chain between the manufacturer and consumer and gets sold as

SS304 material. With S304 Composite Tubes, you can be sure that

the material used is of SS304 grade and if used appropriately, will

last as long as pure SS304 material in the same application.

We sometimes feel that protection of SS304 is not required in indoor

applications. But we forget that everyday usage articles also have

many chemicals which lead to corrosion. Acetic acid is present in

vinegar. When milk deteriorates, lactic acid is produced. Citric acid is

commonly present in fruit juices. Soap has Fatty Acids. Chloride

Salts are most commonly occurring substances in nature. All these

add to corrosion. So, it is always better to use SS304. And best to

use SCP-manufactured through finite engineering for similar

protection at much lower cost.

Corrosion resistance in a chloride-

containing solutionAfter a 575-hour salt-spray test on “304” chrome-

nickel, 4% Ni and 1% Ni, the 4% Ni, 1% Ni

samples showed signifi cant corrosion. These

chrome-manganese grades are unsuitable for

marine-environment applications.

The following image shows corrosion resistance of these Chrome-Manganese grade steels against SS304 in 24 days in a

salt-spray test.

Chromium content influence

Length: 6 meters standard size (or as per order for bulk requirement.)

Polishing: The Company has its own in-house polishing facility that enables a quick reaction to the supply of polishing tube. With a purpose built multi-head polishing machine, it is possible to supply the complete range of finishes from a dull 180 grit to super mirror 1000 grit. The polishing service can accommodate any length of tube or any diameter of tube from 15.88 to 63.5 mm.

Polish of SS composite tubes will be superior to normal SS tubes because we can cold rolled fin passed sheet with excellent

surface finish as our raw material.

Bending, notching, cutting & chamfering machines are available.We can provide bent, fabricated pipes as per order.

Packing: Each tube is put in a plastic sleeve. Bundles of 50 – 60 kgs are packed together, wrapped with a PP woven febric & tied with plastic/ galvanized straps.

1 1.2 1.5 2 2.5 3 Rectangular Tube

Kg/m Kg/m Kg/m Kg/m Kg/m Kg/m

Ф15.88 0.367 0.434

Ф19.05 0.445 0.528 0.649

Ф22.2 0.523 0.621 0.766 0.996 J15 X 20

Ф25.4 0.602 0.716 0.884 1.154 1.412 1.657 F20 X 20

Ф27.8 0.661 0.787 0.973 1.272 1.560 1.835

Ф31.75 0.758 0.904 1.119 1.467 1.803 2.127 J20 X 30, F25 X 25

Ф38.1 0.915 1.092 1.354 1.780 2.195 2.597 F30 X 30

Ф50.8 1.228 1.468 1.824 2.407 2.978 3.536 F40 X 40

Ф63.5 1.541 1.844 2.293 3.033 3.761 4.476 F50 X 50, F40 X 60, F75 X 75

Wall Thickness

Diameter

1(.3+.7)

1.2(.3+.9)

1.5(.3+1.2)

2(.3+1.8)

2.5(.3+2.2)

3(.3+2.7)

Square/Rectangular Tube

Kg/m Kg/m Kg/m Kg/m Kg/m Kg/m

Ф15.88 0.367 0.434

Ф19.05 0.445 0.528 0.649

Ф22.2 0.523 0.621 0.766 0.996 15 X 20

Ф25.4 0.602 0.716 0.884 1.154 1.412 1.657 20 X 20

Ф27.8 0.661 0.787 0.973 1.272 1.560 1.835

Ф31.75 0.758 0.904 1.119 1.467 1.803 2.127 20 X 30, 25 X 25

Ф38.1 0.915 1.092 1.354 1.780 2.195 2.597 30 X 30

Ф50.8 1.228 1.468 1.824 2.407 2.978 3.536 40 X 40

Ф63.5 1.541 1.844 2.293 3.033 3.761 4.476 50 X 50, 40 X 60, 75 X 75

Wall Thickness

Diameter

Specification

Stainless Steel Composite Tube Weight Base Table

Dimensional Tolerance Tolerances on outside diameter

Our Stainless composite tubes are manufactured in compliance with GB/T 18704-2002, the only available international standard for SCP. An English translation of the same can be download from our website

Delivery surface state

Nominal Outer diameter

Tolerance allowed

Polishing grinding state

<20 0.25

>25~40 0.30

>40~50 0.35

>50~60 0.40

>60~70 0.50

Unpolished state <20 0.30

>25~50 0.40

>50 1.0%D

+-+-+-+-+-+-+-+-

SS304 Composite Tubes vs. “New 200 Series” Stainless Steel Tubes

Chrome-Manganese non-magnetic steel grades have been gaining market lately due to low cost. They are having company

specific names as grades as they do not comply with any national or international standards of stainless steel. But in the

market, they are referred to as SS 200 series material. These materials have Nickel as low as 0.20% and Chromium as low as

13% as against 4-6% Nickel and 17-19% Chromium in actual Stainless Steel of 202 grade. SS 304 grade is superior grade

with 8-10.5% Nickel and 17.5-19.5% Chromium.

These “New 200 series” grades have been developed for certain niche applications like utensils for better drawability and

formability. But due to cheaper prices and non-magnetic characteristics, they are now getting used in applications for which

they are not at all recommended.

In a study done by M/s. International Stainless Steel Forum

(Brussels, Belgium) called “New 200-series Steels An Opportunity

or a threat to the image of Stainless Steel?”, corrosion resistance of

these grades against SS304 has been compared. The lowest grade

Chrome-Manganese steel considered for the study was with 15%

Chromium and 1% Nickel. So, the result with the material currently

sold in Indian market will certainly be much worse than those. We

reproduce here a graph for pitting corrosion resistance from the

study:

Since these grades are non-magnetic and equally shiny in the

beginning, they are not identifiable without sophisticated chemical

testing. This, many times, leads to mislabelling and fraud in the long

chain between the manufacturer and consumer and gets sold as

SS304 material. With S304 Composite Tubes, you can be sure that

the material used is of SS304 grade and if used appropriately, will

last as long as pure SS304 material in the same application.

We sometimes feel that protection of SS304 is not required in indoor

applications. But we forget that everyday usage articles also have

many chemicals which lead to corrosion. Acetic acid is present in

vinegar. When milk deteriorates, lactic acid is produced. Citric acid is

commonly present in fruit juices. Soap has Fatty Acids. Chloride

Salts are most commonly occurring substances in nature. All these

add to corrosion. So, it is always better to use SS304. And best to

use SCP-manufactured through finite engineering for similar

protection at much lower cost.

Corrosion resistance in a chloride-

containing solutionAfter a 575-hour salt-spray test on “304” chrome-

nickel, 4% Ni and 1% Ni, the 4% Ni, 1% Ni

samples showed signifi cant corrosion. These

chrome-manganese grades are unsuitable for

marine-environment applications.

The following image shows corrosion resistance of these Chrome-Manganese grade steels against SS304 in 24 days in a

salt-spray test.

Chromium content influence

Length: 6 meters standard size (or as per order for bulk requirement.)

Polishing: The Company has its own in-house polishing facility that enables a quick reaction to the supply of polishing tube. With a purpose built multi-head polishing machine, it is possible to supply the complete range of finishes from a dull 180 grit to super mirror 1000 grit. The polishing service can accommodate any length of tube or any diameter of tube from 15.88 to 63.5 mm.

Polish of SS composite tubes will be superior to normal SS tubes because we can cold rolled fin passed sheet with excellent

surface finish as our raw material.

Bending, notching, cutting & chamfering machines are available.We can provide bent, fabricated pipes as per order.

Packing: Each tube is put in a plastic sleeve. Bundles of 50 – 60 kgs are packed together, wrapped with a PP woven febric & tied with plastic/ galvanized straps.

1 1.2 1.5 2 2.5 3 Rectangular Tube

Kg/m Kg/m Kg/m Kg/m Kg/m Kg/m

Ф15.88 0.367 0.434

Ф19.05 0.445 0.528 0.649

Ф22.2 0.523 0.621 0.766 0.996 J15 X 20

Ф25.4 0.602 0.716 0.884 1.154 1.412 1.657 F20 X 20

Ф27.8 0.661 0.787 0.973 1.272 1.560 1.835

Ф31.75 0.758 0.904 1.119 1.467 1.803 2.127 J20 X 30, F25 X 25

Ф38.1 0.915 1.092 1.354 1.780 2.195 2.597 F30 X 30

Ф50.8 1.228 1.468 1.824 2.407 2.978 3.536 F40 X 40

Ф63.5 1.541 1.844 2.293 3.033 3.761 4.476 F50 X 50, F40 X 60, F75 X 75

Wall Thickness

Diameter

1(.3+.7)

1.2(.3+.9)

1.5(.3+1.2)

2(.3+1.8)

2.5(.3+2.2)

3(.3+2.7)

Square/Rectangular Tube

Kg/m Kg/m Kg/m Kg/m Kg/m Kg/m

Ф15.88 0.367 0.434

Ф19.05 0.445 0.528 0.649

Ф22.2 0.523 0.621 0.766 0.996 15 X 20

Ф25.4 0.602 0.716 0.884 1.154 1.412 1.657 20 X 20

Ф27.8 0.661 0.787 0.973 1.272 1.560 1.835

Ф31.75 0.758 0.904 1.119 1.467 1.803 2.127 20 X 30, 25 X 25

Ф38.1 0.915 1.092 1.354 1.780 2.195 2.597 30 X 30

Ф50.8 1.228 1.468 1.824 2.407 2.978 3.536 40 X 40

Ф63.5 1.541 1.844 2.293 3.033 3.761 4.476 50 X 50, 40 X 60, 75 X 75

Wall Thickness

Diameter

FAQs

Q. How is SMART stainless steel composite tubing made?A. Mild steel strip of requisite grade is rolled and HF welded into a tube. Then, as the formed tube passes through the second welding heads, a sleeve of stainless steel strip is formed around the mild steel tube and TIG welded. The combination is passed through final rollers to straighten the tubes.

Q. What grade of stainless steel and mild steel does SMART use to manufacture stainless steel composite tubes?A. The stainless steel outer sleeve is in stainless steel grade 304 with 316 to follow. The mild steel is in grade IS513/S195/S235.

Q. How thick is the stainless steel layer and mild steel layer?A. Outer stainless steel layer thickness is 0.3mm and balance is mild steel layer of usually 0.9 to 1.2mm. But higher thicknesses of both MS (1 to 2.5mm) and SS (0.3-0.7mm) can be used for large requirements.

Q. Is the bond airtight?A. This is the heart of the technology. The sophisticated rolling process ensures that the stainless steel outer sleeve is rolled tightly around the mild steel core leaving no air gap.

Q. Can SMART tubes be bent and formed?A. The material can be manipulated in any way that would normally be used for stainless steel or mild steel. Standard elongation values of both the mild steel IS513 and stainless steel S304 shall be applicable. We recommend using rotary Draw bending with wiper die & flexible mandrel for good quality bending.

Q. Can SMART tubes be cut?A. Material can be cut using normal saw blades for stainless steel, e.g. 5/8 variable pitch or laser cutting using Oxygen or Nitrogen.

Q. Can SMART tubes welded?A. The material is welded as normal stainless steel e. g. TIG welding, MIG technique with argon shielding gas. Using SS309 electrode and at low amperage. Detailed welding instruction in different languages and video showing the manual welding are available on our website.

We care, We equip

Q. What is the life of stainless steel?A. The outer layer is made of recognised grades of stainless steel and has the usual inherent properties associated with the grade.

Q. What about internal corrosion of inner layer of mild steel?A. The ends of the tubes should be capped with stainless steel or joined by full welding to other similar sections, leaving the inner with no exposure to air or moisture to form corrosion. If done properly, there will not be any internal corrosion. Even if some air gap remains at the end, the corrosion rate due to indirect exposure to moist air will be very very slow.

Q. Will contact with Mild Steel induce corrosion in stainless steel?A. Not at all. On the contrary, MS will act as a sacrificial anode and enhance the corrosion resistance of SS layer.

Q. Is it possible to make specific tube sizes?A. Any size of tube from 19.05mm up to 63.50mm with various wall thicknesses can be made for regular requirement against order.

Q. What polished finish is available?A. Standard finish in production is bright polished or Mat finish but we can make the material in any particular polished finish for regular requirement against order.

Q. Can SMART tubes be painted?A. The material will easily take both wet paint and powder coating finishes provided normal priming and preparation is carried out.

Q. In what lengths is SMART available?A. The SMART material is manufactured in 6 meter lengths as standard though longer or shorter lengths are available upon request.

Q. Are bends & fittings of composite tubes available in the market?A. It will be our endeavor to provide bends & fittings made of clad tubes. But in case of nonavailability with your dealer, you can use bends and fittings of equivalent grade of SS tubes.

FAQs

Q. How is SMART stainless steel composite tubing made?A. Mild steel strip of requisite grade is rolled and HF welded into a tube. Then, as the formed tube passes through the second welding heads, a sleeve of stainless steel strip is formed around the mild steel tube and TIG welded. The combination is passed through final rollers to straighten the tubes.

Q. What grade of stainless steel and mild steel does SMART use to manufacture stainless steel composite tubes?A. The stainless steel outer sleeve is in stainless steel grade 304 with 316 to follow. The mild steel is in grade IS513/S195/S235.

Q. How thick is the stainless steel layer and mild steel layer?A. Outer stainless steel layer thickness is 0.3mm and balance is mild steel layer of usually 0.9 to 1.2mm. But higher thicknesses of both MS (1 to 2.5mm) and SS (0.3-0.7mm) can be used for large requirements.

Q. Is the bond airtight?A. This is the heart of the technology. The sophisticated rolling process ensures that the stainless steel outer sleeve is rolled tightly around the mild steel core leaving no air gap.

Q. Can SMART tubes be bent and formed?A. The material can be manipulated in any way that would normally be used for stainless steel or mild steel. Standard elongation values of both the mild steel IS513 and stainless steel S304 shall be applicable. We recommend using rotary Draw bending with wiper die & flexible mandrel for good quality bending.

Q. Can SMART tubes be cut?A. Material can be cut using normal saw blades for stainless steel, e.g. 5/8 variable pitch or laser cutting using Oxygen or Nitrogen.

Q. Can SMART tubes welded?A. The material is welded as normal stainless steel e. g. TIG welding, MIG technique with argon shielding gas. Using SS309 electrode and at low amperage. Detailed welding instruction in different languages and video showing the manual welding are available on our website.

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Q. What is the life of stainless steel?A. The outer layer is made of recognised grades of stainless steel and has the usual inherent properties associated with the grade.

Q. What about internal corrosion of inner layer of mild steel?A. The ends of the tubes should be capped with stainless steel or joined by full welding to other similar sections, leaving the inner with no exposure to air or moisture to form corrosion. If done properly, there will not be any internal corrosion. Even if some air gap remains at the end, the corrosion rate due to indirect exposure to moist air will be very very slow.

Q. Will contact with Mild Steel induce corrosion in stainless steel?A. Not at all. On the contrary, MS will act as a sacrificial anode and enhance the corrosion resistance of SS layer.

Q. Is it possible to make specific tube sizes?A. Any size of tube from 19.05mm up to 63.50mm with various wall thicknesses can be made for regular requirement against order.

Q. What polished finish is available?A. Standard finish in production is bright polished or Mat finish but we can make the material in any particular polished finish for regular requirement against order.

Q. Can SMART tubes be painted?A. The material will easily take both wet paint and powder coating finishes provided normal priming and preparation is carried out.

Q. In what lengths is SMART available?A. The SMART material is manufactured in 6 meter lengths as standard though longer or shorter lengths are available upon request.

Q. Are bends & fittings of composite tubes available in the market?A. It will be our endeavor to provide bends & fittings made of clad tubes. But in case of nonavailability with your dealer, you can use bends and fittings of equivalent grade of SS tubes.

Corporate office:

3A, Auckland Place, 5th Floor,Kolkata - 700017.West Bengal, IndiaPhone: +91 33 4012 4111Fax: +91 33 4012 4141Email: marketing@smarttubes.inWebsite: www.smarttubes.inWebsite: www.smartstainlesstubes.com