X5CrNiMo17-12-2
1.4401Standard molybdenum-bearing austenitic stainless steel, known as AISI 316. Similar to 1.4404 (316L) but with higher carbon content (max 0.07%) providing slightly better high-temperature strength. Not resistant to intergranular corrosion after welding — for welded constructions prefer 1.4404 (316L). Used in chemical processing, marine environments, and applications requiring improved pitting resistance over 1.4301 (304).
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | 316 | S31600 | REF |
| 🇯🇵 | JIS | Japan | SUS316 | — | 95% |
Sources: ASTM A240, JIS G4303
Chemical composition comparison (wt%)
Side-by-side: X5CrNiMo17-12-2 (EN) (EN 10088-3) vs SUS316 (JIS)
| Element | X5CrNiMo17-12-2 (EN) | SUS316 (JIS) | Overlap |
|---|---|---|---|
| C | ≤ 0.07% | — | — |
| Si | ≤ 1% | — | — |
| Mn | ≤ 2% | — | — |
| Cr | 16.5–18.5% | — | — |
| Mo | 2–2.5% | — | — |
| Ni | 10–13% | — | — |
| N | ≤ 0.11% | — | — |
Mechanical properties
Solution annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 500–700 | MPa |
| Yield Strength Rp0.2 | ≥ 200 | MPa |
| Elongation A | ≥ 40 | % |
| Hardness HB | ≤ 215 | HB |
Compatibility verdict
X5CrNiMo17-12-2 and SUS316: 95% 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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