Stainless Steel 310S Welded Pipes Manufacturer in India

What are Stainless Steel 310S Welded Pipe?

Stainless Steel 310S Welded Pipe is a low-carbon austenitic stainless steel pipe manufactured by forming stainless steel strip or plate into a tubular shape and joining the longitudinal seam by welding. The grade contains high levels of chromium and nickel, providing strong oxidation and scaling resistance for elevated-temperature service.

The lower carbon content of 310S compared with standard 310 helps reduce the risk of carbide precipitation during welding and makes the grade suitable for welded fabrication and high-temperature equipment. It is commonly selected for furnace systems, heat-treatment equipment, chemical processing and industrial heating applications.

Kamal Steels is a Stainless Steel 310S Welded Pipe Manufacturer and Stockist in India, based in Mumbai. The company supplies 310S welded pipes in different sizes, schedules, wall thicknesses, lengths and surface finishes according to customer and project requirements.

The commonly specified pressure-piping designation is ASTM A312 TP310S / ASME SA312 TP310S, with UNS designation S31008. Pipes can be supplied with applicable testing, inspection and material documentation according to project requirements.

Stainless Steel 310S Welded Pipe

Table of Contents

Stainless Steel 310S Welded Pipe Specifications

Stainless Steel 310S Welded Pipe is a low-carbon austenitic stainless steel pipe developed for high-temperature service, oxidation resistance and demanding industrial environments. Its high chromium and nickel content provides excellent resistance to oxidation and scaling at elevated temperatures, while the lower carbon content provides improved resistance to carbide precipitation during welding.

ASTM A312 TP310S is commonly specified for Stainless Steel 310S Pipe used in pressure and high-temperature applications. The welded pipe can be supplied in different nominal sizes, schedules, wall thicknesses, lengths, end preparations and surface finishes according to applicable ASTM, ASME and project requirements.

Specification Details
Product Stainless Steel 310S Welded Pipe
Grade 310S / Type 310S
UNS Number S31008
ASTM Specification ASTM A312
ASME Specification ASME SA312
Material Type Low-Carbon Austenitic Stainless Steel
Pipe Type Welded
Manufacturing Process Formed Stainless Steel Strip / Plate with Welded Seam
Nominal Size 1/8 NB to 48 NB and as required
Schedules SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160, XXS and others
Length Single Random, Double Random and Cut Length
End Preparation Plain End, Bevelled End, Threaded End and as required
Surface Finish Annealed & Pickled, Mill Finish, Bright Annealed and Polished
Testing Hydrostatic, Ultrasonic, PMI, Dimensional Inspection and other specified tests
Material Certificate EN 10204 3.1 Certificate available as required

Kamal Steels supplies Stainless Steel 310S Welded Pipes in standard and custom sizes, schedules, wall thicknesses and lengths. Testing, inspection, material certification and export packaging can be provided according to applicable standards and customer requirements.

Stainless Steel 310S Welded Pipe Chemical Composition

The chemical composition of Stainless Steel 310S provides its combination of high-temperature performance, oxidation resistance and corrosion resistance. The high chromium content contributes to oxidation and scaling resistance, while nickel stabilizes the austenitic structure and supports high-temperature performance.

Element Composition (%)
Carbon (C) 0.08 max.
Manganese (Mn) 2.00 max.
Silicon (Si) 1.50 max.
Phosphorus (P) 0.045 max.
Sulfur (S) 0.030 max.
Chromium (Cr) 24.0–26.0
Nickel (Ni) 19.0–22.0
Iron (Fe) Balance

The controlled carbon level of Stainless Steel 310S makes it particularly suitable for welded fabrication where resistance to carbide precipitation is important. The actual chemical composition should always be verified against the applicable material specification and material test certificate.

Stainless Steel 310S Welded Pipe Sizes, Dimensions & Wall Thickness

Stainless Steel 310S Welded Pipes are available in different nominal pipe sizes, outside diameters and wall thicknesses for high-temperature process piping and industrial applications. The required dimensions are selected according to pipe size, operating pressure, service temperature, design code and project specifications.

Common schedules include SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160 and XXS, subject to pipe size and availability. Heavier schedules provide greater nominal wall thickness and can be selected where additional pressure or mechanical capacity is required.

Nominal Pipe Size Outside Diameter Common Schedules
1/8 NB 10.3 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
1/4 NB 13.7 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
1/2 NB 21.3 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
1 NB 33.4 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
1 1/2 NB 48.3 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
2 NB 60.3 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
3 NB 88.9 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
4 NB 114.3 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S
6 NB 168.3 mm SCH 5S, SCH 10S, SCH 40S, SCH 80S, SCH 160
8 NB 219.1 mm SCH 10S, SCH 40S, SCH 80S, SCH 160
10 NB 273.1 mm SCH 10S, SCH 40S, SCH 80S, SCH 160
12 NB 323.9 mm SCH 10S, SCH 40S, SCH 80S, SCH 160
14 NB 355.6 mm SCH 10S, SCH 40S, SCH 80S
16 NB 406.4 mm SCH 10S, SCH 40, SCH 80
18 NB 457.2 mm SCH 10S, SCH 40, SCH 80
20 NB 508.0 mm SCH 10S, SCH 40, SCH 80
24 NB 610.0 mm SCH 10S, SCH 40, SCH 80

Kamal Steels supplies Stainless Steel 310S Welded Pipes in standard and custom sizes, schedules, wall thicknesses and lengths according to applicable standards, customer drawings and project specifications.

ASTM A312 TP310S Welded Pipe Dimensions & Tolerances

ASTM A312 TP310S Welded Pipes are manufactured with controlled dimensional requirements for outside diameter, wall thickness, length and applicable pipe dimensions. Maintaining dimensional accuracy is important for fabrication, welding, pipe fit-up and installation.

Parameter Requirement
Outside Diameter Controlled according to applicable ASTM A312 dimensional requirements and specified pipe size.
Wall Thickness Controlled according to specified nominal thickness and applicable standard requirements.
Length Available in standard random, double random or specified cut lengths.
Ovality Controlled to maintain acceptable pipe roundness and dimensional consistency.
End Preparation Plain, bevelled or other specified end preparation.

Dimensional inspection can be performed to verify outside diameter, wall thickness, length and other applicable requirements. Additional inspection and testing may be specified for critical applications.

Stainless Steel 310S Welded Pipe Pressure Rating

The pressure rating of Stainless Steel 310S Welded Pipe depends on outside diameter, wall thickness, operating temperature, allowable material stress and the applicable piping design code. Since 310S is frequently used in elevated-temperature applications, pressure design should consider the actual service temperature.

Factor Effect on Pressure Design
Pipe Size Outside diameter is considered during pressure design calculations.
Wall Thickness A greater wall thickness generally provides higher pressure capacity.
Pipe Schedule Different schedules provide different nominal wall thicknesses.
Operating Temperature Allowable material stress changes with service temperature.
Design Code The applicable piping code determines the pressure design method.
Corrosion Allowance Additional wall thickness may be required for corrosion or erosion.

The maximum allowable working pressure should be established using the actual design pressure, temperature, pipe dimensions, material properties and applicable engineering code. A generic pressure value should not be used as the final design basis.

Stainless Steel 310S Welded Pipe Equivalent Grades

Stainless Steel 310S is identified by different designations under international material standards. These designations assist manufacturers, engineers and procurement teams in identifying the corresponding material grade during domestic and international sourcing.

Standard 310S Designation
ASTM 310S
ASME SA312 TP310S
UNS S31008
EN 1.4845
JIS SUS 310S

Equivalent material designations should be verified against chemical composition, mechanical properties, heat treatment, manufacturing requirements and applicable project standards before material substitution.

Stainless Steel 310S Welded Pipe Surface Finish

The surface finish of Stainless Steel 310S Welded Pipe is selected according to the application, manufacturing process and required surface condition. High-temperature industrial piping commonly uses standard mill or annealed and pickled finishes, while specialized applications may require brighter or polished surfaces.

Surface Finish Description Typical Application
Annealed & Pickled Heat-treated and chemically cleaned surface. Industrial process piping
Mill Finish Standard surface obtained during manufacturing. General industrial applications
Bright Annealed Bright and smooth surface produced by controlled annealing. Specialized process applications
Polished Mechanically finished surface with improved smoothness. Specialized applications

The required finish should be specified according to the operating environment, cleaning requirements, fabrication process and final use. Kamal Steels can supply Stainless Steel 310S Welded Pipes with specified surface conditions according to customer and project requirements.

Stainless Steel 310S Welded Pipe Applications

Stainless Steel 310S Welded Pipes are mainly used in high-temperature applications where oxidation resistance, scaling resistance and welded fabrication are important. The grade is suitable for selected furnace, heat-treatment, chemical and industrial heating applications.

Application Typical Use
Furnace Equipment High-temperature furnace piping and components
Heat Treatment Heat-treatment systems and high-temperature process lines
Chemical Processing High-temperature chemical process piping
Petrochemical Selected elevated-temperature process systems
Power Generation Selected high-temperature piping systems
Industrial Heating Heating and combustion-related equipment
Process Plants High-temperature process and utility piping

The suitability of Stainless Steel 310S should be evaluated according to the actual operating temperature, pressure, atmosphere, corrosion conditions and applicable design requirements.

Industries Using Stainless Steel 310S Welded Pipe

Stainless Steel 310S Welded Pipes are used across industries where high-temperature resistance, oxidation resistance and reliable welded performance are required. Pipe grade, dimensions and schedule are selected according to the operating conditions of each application.

Industry Typical Use
Power Generation High-temperature piping and process systems
Petrochemical Elevated-temperature process piping
Chemical Processing High-temperature chemical process systems
Oil & Gas Selected process and heat-related piping applications
Heat Treatment Furnaces and high-temperature process equipment
Industrial Manufacturing High-temperature equipment and fabricated piping
Engineering & Fabrication Industrial high-temperature piping systems

Kamal Steels supplies Stainless Steel 310S Welded Pipes from India for domestic and international industrial requirements. Pipes can be supplied in different sizes, schedules, wall thicknesses, lengths, finishes, testing conditions and material documentation according to project requirements.

Frequently Asked Questions

Stainless Steel 310S Welded Pipe is a low-carbon austenitic stainless steel pipe designed for high-temperature and corrosive applications. It offers excellent oxidation resistance, superior weldability, and long service life.

The primary difference is carbon content. SS 310S has a lower carbon content than SS 310, reducing carbide precipitation during welding and improving corrosion resistance in welded applications.

Our SS 310S Welded Pipes are manufactured according to ASTM A312, ASTM A358, ASME SA312, ASTM A778, ASME B36.19M, and other international standards.

We supply SS 310S Welded Pipes from 1/8" NB to 24" NB in various wall thicknesses, schedules, and custom lengths according to customer requirements.

They are widely used in furnaces, boilers, petrochemical plants, refineries, heat exchangers, power plants, chemical processing industries, and other high-temperature applications.

Yes. SS 310S provides outstanding resistance to oxidation and scaling at elevated temperatures, making it ideal for continuous high-temperature service.

All pipes undergo Hydrostatic Testing, PMI, Radiographic Testing, Dimensional Inspection, Visual Inspection, and other quality checks before dispatch.

Yes. Every shipment is supplied with EN 10204 3.1 Mill Test Certificates, and third-party inspection certificates can be provided upon request.

Yes. We offer customized sizes, schedules, wall thicknesses, lengths, end preparations, and surface finishes to meet project-specific requirements.

Kamal Steels is a trusted manufacturer, supplier, stockist, and exporter offering premium-quality SS 310S Welded Pipes, competitive prices, ready stock, strict quality control, fast delivery, and worldwide export services.