310S Stainless Steel Pipe & Tube: Ultra-High CrNi Extreme High-Temp Resistant Piping

What is 310S Stainless Steel Pipe & Tube?

310S is a premium high-alloy austenitic stainless steel pipe, featuring ultra-high chromium and nickel content to deliver exceptional high-temperature oxidation and corrosion resistance, tailored for extreme high-temperature industrial applications.

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

• Extreme high-temperature tolerance: Capable of long-term service at 1150°C, withstanding high-temperature flue gas and thermal cycling • Strong high-temperature corrosion resistance: Resists attack from corrosive gases in harsh high-temperature environments • Excellent creep and fatigue resistance: Maintains structural integrity under continuous high-temperature and high-stress conditions • Reliable welding performance: Post-weld structure remains stable, suitable for critical high-temperature components.

Grade	C	Mn	Si	P	S	Cr	Mo	Ni	N
310	min. max.	- 0.25	- 2.00	- 1.50	- 0.045	- 0.030	24.0 26.0	-	19.0 22.0	-
310S	min. max.	- 0.08	- 2.00	- 1.50	- 0.045	- 0.030	24.0 26.0	-	19.0 22.0	-

 

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

 

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.