Comprehensive reference portal for stainless steel grades, chemical compositions, mechanical properties, and equivalent international standards.
| Grade | UNS No. | Key Properties | Max Temp (°C) | Common Applications |
|---|---|---|---|---|
| 304 | S30400 | Most versatile, good corrosion resistance | 870 | Kitchen equipment, chemical containers, piping |
| 304L | S30403 | Low carbon, improved weldability | 870 | Welded structures, food processing equipment |
| 316 | S31600 | Superior corrosion resistance (Mo added) | 870 | Marine, chemical processing, pharma |
| 316L | S31603 | Low carbon 316, excellent weldability | 870 | Pressure vessels, offshore, medical devices |
| 321 | S32100 | Ti-stabilized, high temp resistance | 925 | Exhaust systems, heat exchangers |
| 410 | S41000 | Martensitic, hardenable, magnetic | 650 | Valve components, fasteners, turbine blades |
| 430 | S43000 | Ferritic, good formability, magnetic | 815 | Automotive trim, kitchen sinks, appliances |
| 2205 | S31803 | Duplex, high strength + corrosion resistance | 315 | Oil & gas, chemical tankers, desalination |
| Grade | C | Mn | Si | Cr | Ni | Mo | Other |
|---|---|---|---|---|---|---|---|
| 304 | 0.08 | 2.00 | 0.75 | 18.0–20.0 | 8.0–10.5 | — | N: 0.10 |
| 304L | 0.03 | 2.00 | 0.75 | 18.0–20.0 | 8.0–12.0 | — | N: 0.10 |
| 316 | 0.08 | 2.00 | 0.75 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | N: 0.10 |
| 316L | 0.03 | 2.00 | 0.75 | 16.0–18.0 | 10.0–14.0 | 2.0–3.0 | N: 0.10 |
| 321 | 0.08 | 2.00 | 0.75 | 17.0–19.0 | 9.0–12.0 | — | Ti: 5×C min |
| 410 | 0.15 | 1.00 | 1.00 | 11.5–13.5 | 0.75 | — | — |
| 430 | 0.12 | 1.00 | 1.00 | 16.0–18.0 | 0.75 | — | — |
| 2205 | 0.03 | 2.00 | 1.00 | 22.0–23.0 | 4.5–6.5 | 3.0–3.5 | N: 0.14–0.20 |
| Grade | Tensile Strength (MPa min) | Yield Strength (MPa min) | Elongation (% min) | Hardness (HB max) |
|---|---|---|---|---|
| 304 | 515 | 205 | 40 | 201 |
| 304L | 485 | 170 | 40 | 201 |
| 316 | 515 | 205 | 40 | 217 |
| 316L | 485 | 170 | 40 | 217 |
| 321 | 515 | 205 | 40 | 217 |
| 410 | 450 | 205 | 20 | 217 |
| 430 | 450 | 205 | 22 | 183 |
| 2205 | 620 | 450 | 25 | 293 |
| ASTM / AISI | EN (European) | JIS (Japan) | GOST (Russia) | GB (China) |
|---|---|---|---|---|
| 304 | 1.4301 / X5CrNi18-10 | SUS 304 | 08Х18Н10 | 0Cr18Ni9 |
| 304L | 1.4307 / X2CrNi18-9 | SUS 304L | 03Х18Н11 | 00Cr19Ni10 |
| 316 | 1.4401 / X5CrNiMo17-12-2 | SUS 316 | 10Х17Н13М2 | 0Cr17Ni12Mo2 |
| 316L | 1.4404 / X2CrNiMo17-12-2 | SUS 316L | 03Х17Н14М3 | 00Cr17Ni14Mo2 |
| 321 | 1.4541 / X6CrNiTi18-10 | SUS 321 | 08Х18Н10Т | 1Cr18Ni9Ti |
| 410 | 1.4006 / X12Cr13 | SUS 410 | 12Х13 | 1Cr13 |
| 430 | 1.4016 / X6Cr17 | SUS 430 | 12Х17 | 1Cr17 |
| 2205 | 1.4462 / X2CrNiMoN22-5-3 | SUS 329J3L | 03Х22Н5АМ3 | 00Cr22Ni5Mo3N |
| Product Form | Parameter | Standard | Tolerance |
|---|---|---|---|
| Round Bars (h9) | Outer Diameter | EN 10278 | 3–6mm: ±0.015mm / 50–80mm: ±0.038mm |
| Round Bars (h11) | Outer Diameter | EN 10060 | 10–18mm: ±0.055mm / 50–80mm: ±0.095mm |
| Sheets (Cold Rolled) | Thickness | ASTM A480 | 0.5mm: ±0.05mm / 3mm: ±0.15mm |
| Plates (Hot Rolled) | Thickness | ASTM A480 | 5mm: ±0.50mm / 20mm: ±0.80mm |
| Seamless Pipes | Wall Thickness | ASTM A312 | +20% / −12.5% of nominal |
| Seamless Pipes | Outer Diameter | ASTM A312 | NPS ≤1.5": ±0.4mm / NPS 6"–18": ±1% |
| Flanges | Bore Diameter | ASME B16.5 | +1.5mm / −0.0mm |