X90CrMoV18
1.4112High-carbon martensitic stainless steel — 0.9% C + 18% Cr. Achieves HRC 58-60 after hardening — among the hardest stainless steels. Better corrosion resistance than 440C (1.4125) due to higher Cr (17-19% vs 16-18%). THE premium European cutlery/surgical instrument stainless. Used for kitchen knives, surgical scalpels, razor blades, ball bearings in corrosive environments, and valve seats.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | X90CrMoV18 / 1.4112 | 1.4112 | 100% |
Sources: EN 10088-3
Chemical composition comparison (wt%)
Side-by-side: X90CrMoV18 (EN) (EN 10088-3) vs X90CrMoV18 / 1.4112 (EN) (EN 10088-3)
| Element | X90CrMoV18 (EN) | X90CrMoV18 / 1.4112 (EN) | Overlap |
|---|---|---|---|
| C | 0.85–0.95% | 0.85–0.95% | OK |
| Si | 0–1% | 0–1% | OK |
| Mn | 0–1% | 0–1% | OK |
| Cr | 17–19% | 17–19% | OK |
| Mo | 0.9–1.3% | 0.9–1.3% | OK |
| V | 0.07–0.12% | 0.07–0.12% | OK |
Mechanical properties
Hardened Tempered
| Property | Value | Unit |
|---|---|---|
| Hardness HRC | 56–60 | HRC |
| Tensile Strength | 1900–2200 | MPa |
| Elastic Modulus | ≥ 210 | GPa |
| Density | ≥ 7.7 | g/cm3 |
Annealed
| Property | Value | Unit |
|---|---|---|
| Hardness HB | ≤ 280 | HB |
Compatibility verdict
X90CrMoV18 and X90CrMoV18 / 1.4112: 100% 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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