36NiCrMo16
1.6773Ultra-high-strength nickel-chromium-molybdenum QT steel. 4% Ni gives exceptional deep hardenability — air-hardening up to 90mm, through-hardening up to 300mm. UTS 1100-1300 MPa QT with good toughness. White-spot sensitive — dehydrogenation after forging mandatory. French designation 35NCD16. Used for landing gear, aerospace structural parts, heavy-duty shafts, racing components, and mining/construction equipment.
International equivalents
| Flag | Standard | Country | Grade | Number | Match |
|---|---|---|---|---|---|
| 🇪🇺 | EN | Europe | 36NiCrMo16 / 1.6773 | 1.6773 | 100% |
| 🇫🇷 | AFNOR | France | 35NCD16 | — | 100% |
Sources: EN 10083-3, AIR 9160/C
Mechanical properties — Pro
QT
| Property | Value | Unit |
|---|---|---|
| Tensile Strength | ||
| Yield Strength | ||
| Elongation | ||
| Hardness HB | ||
| Elastic Modulus | ||
| Density |
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51CrMoV4
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