9Ni-4Co-0.30C Steel
Verifiedmetal# 9Ni-4Co-0.30C Steel Ultra-high-strength nickel-cobalt maraging steel used in aerospace applications requiring exceptional yield strengths (typically 1,379–1,586 MPa) and fracture toughness at cryogenic temperatures. Q&T (quenched and tempered) condition provides controlled hardness and ductility balance suitable for critical load-bearing components in rocket motors, pressure vessels, and landing gear systems.
aerospacestructural
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
Tempers & Conditions
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec) | — | Pa | 22°C · Sheet/Strip/Plate | — | |
S–N Curve (Wöhler)(S–N)2 entries | Curve (14 pts) | Pa | — | — | |
| ↳ | Curve (8 pts) | Pa | — | — | |
Young's Modulus(E) | — | Pa | 22°C · Sheet/Strip/Plate | — |
N entriesMultiple entries per property — large groups are collapsed; click a summary row to expand. Use filters above to narrow by form / heat treatment / basis.
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Density(ρ) | — | kg/m³ | 22°C | — |
Verified Unverified Low confidence (<80%) Link to source
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RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.