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Stainless Steel 310 & 310S Pipes & Tubes Supplier & Stockist in India
High-temperature thermal operations, furnace assemblies, and radiant tube systems demand specialized 25-20 chromium-nickel austenitic alloys built to resist severe oxidation and cyclic scaling. Steel Emporium is a premier Stainless Steel 310S Pipes & Tubes Supplier in India, stocking high-alloy heat-resistant tubing solutions engineered to preserve structural integrity under continuous service up to 1150°C.
To fulfill urgent project schedules, we operate as a full-inventory Stainless Steel 310 Pipes & Tubes Stockist in India, providing mill-certified SS 310 Pipes, SS 310 Tubes, SS 310S Pipes, and SS 310S Tubes in seamless, ERW, EFW, and LSAW configurations. Operating under strict ISO 9001:2015 standards with over 25 years of industry expertise, every piping lot is verified for elevated thermal environments.
For applications requiring lower temperature limits or intermediate thermal performance, explore our heat-resistant Stainless Steel 309 & 309S Pipes & Tubes stock list for specialized furnace setups.
For heavy-wall welded constructions operating in high-heat thermal loops, partner with a leading Stainless Steel 310S Pipes & Tubes Stockist in India. We supply precision-crafted Stainless Steel 310S Pipes and Stainless Steel 310 Tubes under ASTM A312, ASTM A358, and ASTM A213 standards backed by EN 10204 3.1 certification.
Jump To Section: Material Specs | Grade Selection | Size Chart | FAQs
ASTM A312 / ASME SA312 & ASTM A358 SS 310 & 310S Technical Specifications
Our processing units execute precision cold drawing, bright annealing, custom length cutting, and surface polishing across all 25-20 grade options.
| Technical Parameter | Specification Scope & Manufacturing Capabilities |
|---|---|
| Governing Specifications | ASTM A312 / ASME SA312, ASTM A358 / ASME SA358, ASTM A213, DIN, EN, JIS |
| Grade Variants | Stainless Steel 310 (UNS S31000), 310S (UNS S31008) |
| Manufacturing Types | Seamless, ERW, Welded, Fabricated, EFW, LSAW, Cold Drawn |
| Profile Configurations | Round, Square, Rectangular, Hydraulic, Custom Shapes |
| Outside Diameter (OD) Scope | 1/8" NB to 30" NB (Seamless) | 1/2" NB to 24" NB (ERW) | 6" NB to 100" NB (EFW) |
| Schedule Wall Thickness Range | SCH 20, SCH 30, SCH 40, STD, SCH 60, SCH 80, XS, SCH 120, SCH 140, SCH 160, XXS |
| Length & End Treatments | Single Random, Double Random & Cut Length | Plain, Beveled, Threaded |
| Surface Finish & Coatings | AP (Annealed & Pickled), BA (Bright Annealed), 180–400 Grit Polish, Electropolished |
Grade Selection Guide: Choosing Between 310 & 310S
SS 310 Pipes & Tubes – High-Carbon Alloy for Elevated Creep Strength
Standard Stainless Steel 310 Pipes feature a high chromium (24–26%) and nickel (19–22%) matrix with carbon capped at 0.25% max. As a trusted Stainless Steel 310 Pipes & Tubes Stockist in India, we deliver this high-carbon variant for thermal applications requiring maximum creep rupture strength and elevated structural resistance up to 1150°C in non-welded or thin-gauge components.
SS 310S Pipes & Tubes – Low-Carbon Variant for Heavy Welded Equipment
Ordering through an established Stainless Steel 310S Pipes & Tubes Supplier in India provides a low-carbon alloy (0.08% max) engineered specifically to prevent intergranular carbide precipitation during fabrication. Heavy-wall Stainless Steel 310S Pipes and SS 310S Tubes maintain full high-temperature corrosion resistance across heat-affected zones in the as-welded condition.
Chemical, Mechanical & Equivalent Specifications
| Element / Parameter | SS 310 (UNS S31000) | SS 310S (UNS S31008) |
|---|---|---|
| Carbon (C) | 0.25% Max | 0.08% Max |
| Manganese (Mn) | 2.00% Max | 2.00% Max |
| Silicon (Si) | 1.50% Max | 1.50% Max |
| Phosphorus (P) | 0.045% Max | 0.045% Max |
| Sulfur (S) | 0.030% Max | 0.030% Max |
| Chromium (Cr) | 24.0 – 26.0% | 24.0 – 26.0% |
| Nickel (Ni) | 19.0 – 22.0% | 19.0 – 22.0% |
| Property / Parameter | SS 310 | SS 310S |
|---|---|---|
| Tensile Strength (MPa / Psi min) | 515 MPa / 75,000 Psi | 515 MPa / 75,000 Psi |
| Yield Strength (MPa / Psi min) | 205 MPa / 30,000 Psi | 205 MPa / 30,000 Psi |
| Elongation (% in 50 mm min) | 35% – 40% | 35% – 40% |
| Density / Melting Point | 8.0 g/cm³ | 1454 °C (2650 °F) | 8.0 g/cm³ | 1454 °C (2650 °F) |
| Hardness (Rockwell B / Brinell Max) | HRB 95 Max | 217 HBW Max | HRB 95 Max | 217 HBW Max |
| Standard / Grade | WERKSTOFF NR. | UNS Number | AISI | EN Standard |
|---|---|---|---|---|
| SS 310 | 1.4841 | S31000 | 310 | X15CrNiSi25-21 |
| SS 310S | 1.4845 | S31008 | 310S | X12CrNi25-21 |
Stainless Steel 310 Series Size & Schedule Chart
| Nominal Size (NB) | SCH 20 / SCH 40 Wall | SCH 80 / XS Wall | SCH 160 / XXS Wall |
|---|---|---|---|
| 1/2" NB (21.34 mm OD) | 2.11 mm / 2.77 mm | 3.73 mm / 3.73 mm | 4.78 mm / 7.47 mm |
| 3/4" NB (26.67 mm OD) | 2.11 mm / 2.87 mm | 3.91 mm / 3.91 mm | 5.56 mm / 7.82 mm |
| 1" NB (33.40 mm OD) | 2.77 mm / 3.38 mm | 4.55 mm / 4.55 mm | 6.35 mm / 9.09 mm |
| 1-1/2" NB (48.26 mm OD) | 2.77 mm / 3.68 mm | 5.08 mm / 5.08 mm | 7.14 mm / 10.15 mm |
| 2" NB (60.32 mm OD) | 2.77 mm / 3.91 mm | 5.54 mm / 5.54 mm | 8.74 mm / 11.07 mm |
| 3" NB (88.90 mm OD) | 3.05 mm / 5.49 mm | 7.62 mm / 7.62 mm | 11.13 mm / 15.24 mm |
| 4" NB (114.30 mm OD) | 3.05 mm / 6.02 mm | 8.56 mm / 8.56 mm | 13.49 mm / 17.12 mm |
| 6" NB (168.28 mm OD) | 3.40 mm / 7.11 mm | 9.52 mm / 9.52 mm | 18.26 mm / 21.95 mm |
Key Industrial Applications
Selecting 25-20 chromium-nickel piping offers targeted thermal performance and high-heat stability across heavy industrial sectors:
Kilns, Muffles & Thermal Treatment Lines (SS 310)
High-carbon SS 310 Tubes provide structural load-bearing capacity and oxidation resistance inside continuous annealing muffles, radiant tubes, and rotary kiln combustion lines operating up to 1150°C.
Heavy Welded Furnace Piping Systems (SS 310S)
Low-carbon SS 310S Pipes are installed in high-temperature burner manifolds, heat exchangers, and furnace exhaust ducts where thick-section welding is required without risking intergranular cracking.
Fluidized Bed Combustors & Power Plants (SS 310S)
ASTM A312 SS 310S Pipes handle high-velocity hot gas streams, coal gasifiers, and grid tubes, offering stability against thermal spalling and cyclic oxidation.
Cryogenic Processing Equipment (SS 310S)
Stainless Steel 310S Tubes exhibit low magnetic permeability and retain exceptional notch impact toughness down to -269°C, serving cryogenic fluid loops and liquid gas storage facilities.
Petrochemical Crackers & Reformer Tubes (SS 310 / 310S)
ASTM A358 EFW 310S large-diameter pipes transport thermal cracking gases and hot organic acids where resistance to internal oxidation and carburization is mandatory.
Quality Assurance, MTC Certification & Testing Standards
Every piping order processed by Steel Emporium adheres strictly to our ISO 9001:2015 and PED 2014/68/EU quality protocols.
| Certification / Standard | Compliance & Testing Scope |
|---|---|
| ISO 9001:2015 & Pressure Compliance | Certified QMS with PED 2014/68/EU and AD 2000 Merkblatt approvals. |
| EN 10204 3.1 & 3.2 MTC | Factory test reports providing full heat number traceability and chemical analysis. |
| PMI & Chemical Verification | 100% XRF spectro testing to confirm 24–26% Cr and 19–22% Ni content. |
| Mechanical & Weld NDT | Hydrostatic, eddy current, and flaring testing for 100% seam integrity. |
| Third-Party Inspection (TPI) | Third-party inspection ready (SGS, TUV, Bureau Veritas). |
| Corporate Address | 102, Durga Devi Street, Mumbai-400004, Maharashtra, India | Central Warehouse & Stockyard | Plot 943, Kalamboli Steel Market, Navi Mumbai - 410218, Maharashtra, India |
Frequently Asked Questions
Request a Technical Sourcing Quote
Ready to procure high-temperature SS 310 or 310S piping for your plant? Contact our technical team today for factory-direct quotes, complete EN 10204 3.1 MTC verification, and fast global dispatch.