316 / X5CrNiMo17-12-2
1.4401Standard-carbon austenitic stainless steel with molybdenum. Higher C than 316L (max 0.07% vs 0.03%) giving slightly higher strength. Same corrosion resistance as 316L. Used where welding is not required or post-weld solution annealing is possible.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 316 | S31600 | REF |
| 🇪🇺 | EN | Europe | X5CrNiMo17-12-2 | 1.4401 | 100% |
| 🇯🇵 | JIS | Japan | SUS316 | — | 99% |
| 🇨🇳 | GB | China | 0Cr17Ni12Mo2 | — | 95% |
Sources: ASTM A240, EN 10088-2, JIS G4303, GB/T 1220
Chemical composition comparison (wt%)
Side-by-side: 316 / X5CrNiMo17-12-2 (EN) (EN 10088-2) vs SUS316 (JIS)
| Element | 316 / X5CrNiMo17-12-2 (EN) | SUS316 (JIS) | Overlap |
|---|---|---|---|
| C | 0–0.07% | — | — |
| Si | 0–1% | — | — |
| Mn | 0–2% | — | — |
| P | 0–0.045% | — | — |
| S | 0–0.015% | — | — |
| Cr | 16.5–18.5% | — | — |
| Mo | 2–2.5% | — | — |
| Ni | 10–13% | — | — |
| N | 0–0.11% | — | — |
Mechanical properties
Solution Treated
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 530–680 | MPa |
| Yield Strength | ≥ 220 | MPa |
| Elongation | ≥ 40 | % |
| Hardness HB | ≤ 215 | HB |
| Elastic Modulus | ≥ 200 | GPa |
| Density | ≥ 7.98 | g/cm3 |
Heat treatment
| Process | Temperature | Medium | Holding Time | Notes |
|---|---|---|---|---|
| solution_treating | 1020–1100 °C | water | Rapid cooling required | Unlike 316L, standard 316 is NOT resistant to intergranular corrosion after welding without post-weld annealing |
Compatibility verdict
316 / X5CrNiMo17-12-2 and SUS316: 99% composition match
Close equivalents but NOT identical.
Related materials
304 Stainless Steel
1.4301The most widely used austenitic stainless steel. Excellent corrosion resistance, good formability and weldability. Standard choice for food processing, chemical, and architectural applications.
316L
1.4404Low-carbon austenitic stainless steel with molybdenum addition. Superior corrosion resistance to 304, especially against chlorides and pitting. Standard choice for chemical processing, marine, medical implants, and pharmaceutical equipment.
430 Stainless Steel
1.4016Ferritic chromium stainless steel with good corrosion resistance and formability. Lower cost than austenitic grades. Used for automotive trim, kitchen sinks, architectural panels, and appliance components.
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