17-4PH Stainless Steel
VerifiedmetalUNS S17400· AISI 630
17-4PH is a precipitation-hardened martensitic stainless steel (Fe-Cr-Ni-Cu-Nb) combining high strength (typically 1310–1655 MPa depending on temper) with good corrosion resistance and fatigue performance for aerospace and defense applications. Available in multiple H-series heat-treated conditions (H900–H1150M) offering strength/toughness trade-offs, plus annealed (A) and solution-treated (Sta) soft conditions for fabrication.
aerospacestructural
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
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| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Compressive Modulus(Ec)3 entries | Curve (10 pts) | ksi | — | — | |
| ↳ | — | ksi | 22°C · Sheet/Strip/Plate | — | |
| ↳ | — | ksi | 22°C · Forging/Tubing | — | |
Poisson's Ratio(ν) | — | - | 22°C | — | |
Shear Modulus(G)2 entries | — | ksi | 22°C · Investment Casting | — | |
| ↳ | — | ksi | 22°C · Sheet/Strip/Plate | — | |
Young's Modulus(E)2 entries | — | ksi | 22°C · Sheet/Strip/Plate | — | |
| ↳ | — | ksi | 22°C · Forging/Tubing | — |
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 | |
|---|---|---|---|---|---|
CTE vs Temperature(α(T))3 entries | Curve (13 pts) | µin/in·°F | — | — | |
| ↳ | Curve (13 pts) | µin/in·°F | — | — | |
| ↳ | Curve (13 pts) | µin/in·°F | — | — | |
Specific Heat vs Temperature(Cp(T)) | Curve (17 pts) | BTU/(lb·°F) | — | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (17 pts) | BTU/(hr·ft·°F) | — | — |
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) | — | lb/in³ | 22°C | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Quality & Standards
Industry-Specific
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.