X6CrNiMoTi17-12-2
1.4571Titanium-stabilized austenitic Cr-Ni-Mo steel — AISI 316Ti. THE German standard industrial stainless (known as "V4A"). Ti prevents Cr-carbide precipitation at 450-850°C giving intergranular corrosion resistance after welding. Better high-temp stability than 316L (up to 550°C). PREN 23-27. Used extensively in chemical/pharmaceutical plants, pressure vessels, food processing, apparatus construction, and shipbuilding.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇺🇸 | AISI | USA | AISI 316Ti / UNS S31635 | S31635 | REF |
| 🇪🇺 | EN | Europe | X6CrNiMoTi17-12-2 / 1.4571 | 1.4571 | 100% |
| 🇯🇵 | JIS | Japan | SUS 316Ti | — | 95% |
Sources: ASTM A240, EN 10088-3, JIS G4303
Chemical composition comparison (wt%)
Side-by-side: X6CrNiMoTi17-12-2 (EN) (EN 10088-3) vs SUS 316Ti (JIS)
| Element | X6CrNiMoTi17-12-2 (EN) | SUS 316Ti (JIS) | Overlap |
|---|---|---|---|
| C | 0–0.08% | — | — |
| Si | 0–1% | — | — |
| Mn | 0–2% | — | — |
| P | 0–0.045% | — | — |
| S | 0–0.015% | — | — |
| Cr | 16.5–18.5% | — | — |
| Mo | 2–2.5% | — | — |
| Ni | 10.5–13.5% | — | — |
| Ti | ≤ 0.7% | — | — |
| N | 0–0.11% | — | — |
Mechanical properties
Solution annealed
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | 500–700 | MPa |
| Yield Strength | ≥ 200 | MPa |
| Elongation | ≥ 40 | % |
| Hardness HB | ≤ 215 | HB |
| Elastic Modulus | ≥ 200 | GPa |
| Density | ≥ 8 | g/cm3 |
Compatibility verdict
X6CrNiMoTi17-12-2 and SUS 316Ti: 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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