310S Stainless Steel Seamless Pipe DN80 SCH40S High Temperature Resistant
High Temperature Resistant 310S Stainless Steel Tube / Stainless Steel Pipe Seamless DN80 SCH40S SS Pipe
Products Specification
| Products Name | 310S Stainless Steel Seamless Pipe |
Grade: |
304 304L 309S 310S 314 316L 316Ti 321 329 347H 410 2205 2507 S32760 904L 254SMO and equal grade in GB JIS EN DIN Standard |
| Standards: | ASTM A213M-94b ASTM A249M-94a ASTM A269-94a ASTM A312M-94b,ect. |
| DIN 17456-85 DIN 17458-85 DIN 17459-92.ect | |
| JIS G3446-1994 JIS G3448-1997 JIS G3459-1997 JIS G3463-1994,ect. | |
| GB13296-1991 GB14975-2002 GB14976-2002,ect. | |
| Size: | ND5 - DN400 |
| Length: | 6m length or cutting any length as request |
| Applications: | fluid and gas transport, structure , boiler, heat exchanger, super heater |
310S stainless steel (UNS S31008) is an austenitic chromium-nickel alloy designed for extreme high-temperature applications. Its high chromium (24–26%) and nickel (19–22%) content ensures exceptional oxidation resistance, creep strength, and corrosion durability up to 1150°C continuously and 1200°C intermittently238. Below are key details structured for technical reference.
1. Chemical Composition
310S prioritizes oxidation resistance and high-temperature stability through balanced alloying:
Table: Chemical Composition (Weight %)5710
| Element | C | Cr | Ni | Mn | Si | P | S | Fe |
|---|---|---|---|---|---|---|---|---|
| Min | - | 24.00 | 19.00 | - | - | - | - | 53.095 |
| Max | 0.08 | 26.00 | 22.00 | 2.00 | 1.00 | 0.045 | 0.030 | Balance |
2. Mechanical & Physical Properties
Optimized for high-temperature structural integrity:
Table: Mechanical Properties (Room Temperature)2510
| Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness (HB) | Density (g/cm³) |
|---|---|---|---|---|
| ≥515 | ≥205 | ≥40 | ≤187 | 7.98 |
Table: Physical Properties10
| Melting Point (°C) | Thermal Conductivity (W/m·K) | Coefficient of Expansion (10⁻⁶/K) |
|---|---|---|
| 1397–1453 | 16.3–21.5 (100–500°C) | 14.4–17.5 (100–500°C) |
3. Standards & Equivalent Grades
Widely standardized globally for seamless/welded tubes:
Table: International Equivalents356
| Region | Standard | UNS | EN | JIS | GB (China) | GOST (Russia) |
|---|---|---|---|---|---|---|
| USA | ASTM A213/A312 | S31008 | 1.4845 | SUS 310S | 06Cr25Ni20 | 20Ch23N18 |
| Europe | EN 10216-5 | – | X8CrNi25-21 | – | – | – |
Key Standards:
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Seamless Tubes: ASTM A213, ASME SA213, EN 10216-559
-
Welded Tubes: ASTM A312, ASME SA3129
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Fittings: ASTM A403 (WP310S for forged parts)6
4. Applications
310S tubes excel in thermally aggressive environments:
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Energy & Petrochemical: Boiler tubes, reheaters, refinery heaters, fluidized bed combustors89.
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Industrial Furnaces: Radiant tubes, kiln linings, burner nozzles, annealing covers39.
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Waste & Processing: Incinerators, salt pots, food processing equipment89.
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Mechanical Components: Heat exchanger tubing, thermocouple sleeves, high-pressure piping57.
5. Packaging & Specifications
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Dimensions:
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OD: 6–914 mm (seamless); up to 24" NB (welded)19
-
Thickness: 0.3–50 mm (SCH 5 to XXS)9
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Length: 3,500–7,500 mm (6,000 mm standard)1
-
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Packaging: Plastic caps, woven bags, wooden crates1.
-
Tolerance:
-
Outer Diameter: ±0.5% (D2 grade)7
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Straightness: ≤1.5 mm1.
-
6. Special Processing
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Surface Finish: Annealed/pickled, polished, bright-annealed (BA)59.
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Ends: Plain, beveled, threaded5.
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Heat Treatment: Solution-annealed at ≥1040°C, water-quenched6.
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