Girgaon, Mumbai - 400004
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 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.
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 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 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.
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 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.
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 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.
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.
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.