ASTM A213 TP310S Stainless Steel Seamless Pipe

Jan 26, 2026

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What is ASTM A213 TP310S?

ASTM A213 TP310S is a high-alloy austenitic stainless steel seamless pipe with high chromium and nickel content, featuring superior high-temperature oxidation and corrosion resistance. It is mainly used in extreme high-temperature industrial environments such as industrial furnace tubes and high-temperature flue gas pipelines.

Equivalent Grades (Horizontal)

UNS: S31008 | JIS: SUS310S | GB: 06Cr25Ni20 | EN: X5CrNi25-21 | W.Nr.: 1.4845

Chemical Composition (wt%, Horizontal)

C: ≤0.08 | Si: ≤1.50 | Mn: ≤2.00 | P: ≤0.045 | S: ≤0.030 | Cr: 24.00-26.00 | Ni: 19.00-22.00 | Fe: Balance

Key Properties (20°C, Annealed, Horizontal)

Density: 7.98g/cm³ | Melting Point: 1400-1450°C | Tensile Strength: ≥515N/mm² | Yield Strength: ≥205N/mm² | Elongation: ≥40% | Hardness: ≤217HB

Core Characteristics

• Exceptional high-temperature oxidation resistance, capable of withstanding long-term service at 1150°C without obvious oxidation damage • Strong resistance to high-temperature corrosive gases, suitable for flue gas and chemical high-temperature pipeline applications • Good high-temperature creep and fatigue resistance, ensuring structural stability under cyclic high-temperature conditions • Excellent weldability, post-weld performance is stable without obvious performance degradation

TP310S vs TP304 (Horizontal)

Cr+Ni Content: 310S (43.00-48.00%) | 304 (26.00-30.50%) | High-Temp Resistance: 310S (Superior) | 304 (Ordinary) | Corrosion Resistance: 310S (Excellent) | 304 (Good) | Application: 310S (Extreme High-Temp) | 304 (General Purpose)

Element309309S309H
Chromium22.0 min.-24.0 max.22.0 min.-24.0 max.22.0 min.-24.0 max.
Nickel12.0 min.-15.0 max.12.0 min.-15.0 max.12.0 min.-15.0 max.
Carbon0.200.080.04 min.-0.10 max.
Manganese2.002.002.00
Phosphorus0.0450.0450.045
Sulfer0.0300.0300.030
Silicon0.750.750.75
IronBalanceBalanceBalance

 

Stainless Steel Suppliers

If you have project requirements for stainless steel, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, wires, etc. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.Email: info@gneestainless.com

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Testing and Documentation: Factory test certificate, EN 10204 3.1, chemical report, mechanical report, destructive testing report, non-destructive testing report, PMI test report, visual inspection report, third-party inspection report, NABL certified laboratory report.
Packaging: Wooden crate packaging, bubble wrap packaging, steel strapping, or packaging according to customer requirements.

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