HY80
High-StrengthHY80 / high strength steel
HY80 supplied by Shanxi Youte Steel (jlhsteel.net).
Chemical Composition (%)
| C | 0.18 |
|---|---|
| NI | 2 |
| CR | 1 |
| MO | 0.2 |
| MN | 0.1 |
Chinese Standard
MIL-S-16216
Available Forms
Bar, Plate, Forging
Uses
Ultra-high-strength steel for safety- and weight-critical structural parts. Used in aerospace frames, armor, fasteners, landing gear and high-performance automotive components.
Heat Treatment
Quenched and tempered, or precipitation/ausforming treated to ultra-high strength; for maraging grades, solution at 815–900 °C then age 480–500 °C.
Precautions
High sensitivity to stress corrosion and hydrogen embrittlement — control plating/baking and avoid notches. Proof-load and inspect critically stressed parts.
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