What is ss 310 material?
SS 310 (UNS S31000) is a highly alloyed austenitic stainless steel designed forextreme high-temperature service and corrosion resistance. Containing 25%chromium and 20% nickel, it excels in oxidation resistance up to I, 100°C (2, 012°F) andis widely used in furnace components, kilns, heat exchangers, and chemical processingequipment.
What are the advantages of 310H SS?
310H stainless steel (UNS S31009) is a high-carbon, heat-resistant austenitic alloy (0.04–0.10% carbon) designed for improved creep strength and high-temperature performance. Its main advantages include exceptional oxidation resistance up to 1040°C-1150°C, superior creep strength, high corrosion resistance, and good toughness in demanding thermal cycling or sulphur-rich environments.
What is the equivalent grade of 310 stainless steel?
| Grade | UNS | EN/W.Nr. | EN Designation | Swedish SS | Japanese JIS |
|---|---|---|---|---|---|
| 310 | S31000 | – | – | – | SUS 310 |
| 310S | S31008 | 1.4845 | X8CrNi25-21 | 2361 | SUS 310S |
| 310H | S31009 | – | – | – | – |
Chemical Analysis Weight % (all values are maximum unless a range is otherwise indicated)
| Element | 310 | 310S | 310H |
|---|---|---|---|
| Chromium | 24.0 min.-26.0 max. | 24.0 min.-26.0 max. | 24.0 min.-26.0 max. |
| Nickel | 19.0 min.-22.0 max. | 19.0 min.-22.0 max. | 19.0 min.-22.0 max. |
| Carbon | 0.25 | 0.08 | 0.04 min. - 0.10 max. |
| Manganese | 2.00 | 2.00 | 2.00 |
| Phosphorus | 0.045 | 0.045 | 0.045 |
| Sulfer | 0.030 | 0.030 | 0.030 |
| Silicon | 1.50 | 1.50 | 0.75 |
| Iron | Balance | Balance | Balance |
Mechanical Properties
| Property | 310 | 310S | 310H |
|---|---|---|---|
| Tensile Strength | 515 MPa (75 ksi) | 515 MPa (75 ksi) | 515 MPa (75 ksi) |
| Yield Strength | 205 MPa (30 ksi) | 205 MPa (30 ksi) | 205 MPa (30 ksi) |
| Elongation | 40% | 40% | 40% |
| Hardness (Brinell) | 217 max | 217 max | 217 max |
| Hardness (Rockwell B) | 95 max | 95 max | 95 max |
| Hardness (Vickers) | 220 max | 220 max | 220 max |
| Modulus of Elasticity | 200 GPa (29,000 ksi) | 200 GPa (29,000 ksi) | 200 GPa (29,000 ksi) |
310 vs. 310S vs. 310H Stainless Steel: Key Differences
310, 310S, and 310H are all high-temperature austenitic stainless steels containing approximately 25% chromium and 20% nickel in their composition, offering exceptional oxidation resistance at temperatures up to 2,100°F (1,150°C). The primary distinction among these three steel grades lies in their carbon content: 310S is the low-carbon variant (carbon content ≤ 0.08%), designed to enhance weldability and corrosion resistance; 310H is the high-carbon variant (carbon content 0.04%–0.10%), engineered to provide superior creep strength; while 310 serves as the standard, general-purpose, medium-carbon version.
310 vs. 310S vs. 310H Stainless Steel: High-Temperature Resistance
310H offers optimal high-temperature strength and creep resistance (with a carbon content of 0.04%–0.10%), making it an ideal choice for furnace components and long-term high-temperature applications. 310S (low carbon) provides superior weldability and corrosion resistance, while standard 310 (high carbon) is suitable for general high-temperature applications up to 2100°F (1100°C).
310S 2B Stainless Steel Sheet Supplier
| Standard |
ASTM A240, BS 1449-2, DIN 17440, EN 10088-2, GOST 5632, ISO 9328-7, JIS G4304 |
|---|---|
| Grade |
1Cr25Ni20Si2, 25 20, S31008, SUS310S, X8CrNi25-21 (1.4845) |
| Length |
2000mm – 6000mm (78.7in – 236.2in), Customized |
| Thickness |
3mm – 100mm (0.12in – 3.94in), Customized |
| Width |
1000mm – 2000mm (39.4in – 78.7in), Customized |
| Surface Finish |
BA, HL, Mirror, No.1, No.2B, No.4, Pickled |
| Technique |
Cold Rolled, Hot Rolled |
| Form |
310/310/310H Coils, 310/310S/310H Chequered Plate, 310/310S/310H Perforated Plate, 310/310S/310H Strips, BA Finish 310/310S/310H Sheet, HL Finish 310/310S/310H Plate, Hot Rolled/Cold Rolled 310/310S/310H Sheet, Mirror Finish 310/310S/310H Sheet, No.1 Finish 310/310S/310H Plate, No.2B Finish 310/310S/310H Sheet, No.4 Finish 310/310S/310H Sheet |
100% PMI Testing: Every sheet undergoes spectroscopic analysis prior to shipment, with a specific focus on verifying Nickel (Ni 20%) and Chromium (Cr 25%) content.
Material Test Certificate (MTC): A comprehensive certificate compliant with EN 10204 3.1 is provided, including high-temperature tensile properties upon request.
Third-Party Inspection: We welcome on-site inspections by agencies such as SGS, TUV, and BV to conduct spot checks on thickness, surface quality, and chemical composition.
Packing & Shipping
Precision Packaging: For 2B thin sheets, we utilize reinforced, fumigated wooden pallets; interleaving paper is placed between sheets to prevent surface adhesion and scratching, and the package is wrapped in waterproof paper with metal edge protectors.
Sea Freight: Available via 20-foot containers (FCL) or Less than Container Load (LCL).
Air Freight: Express/air cargo services are available for urgent repair parts.
