AISI 4130 Alloy Steel
metalUNS G41300· AISI 4130· 4130· AISI 4130
AISI 4130 is a chromium-molybdenum alloy steel (0.28–0.33% C, 0.8–1.1% Cr, 0.15–0.25% Mo) widely used in aerospace structures, pressure vessels, and fasteners where moderate strength combined with good fracture toughness and weldability are required. It exhibits tensile strengths of 1,100–1,500 MPa depending on heat treatment, maintains reasonable toughness to moderate temperatures, and offers good fatigue resistance and machinability.
Compliance & Regulations
?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
S–N Curve (Wöhler)(S–N) | — | ksi | 11 entriesClick to expand | ||
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)) | Curve (13 pts) | µin/in·°F | — | — | |
Specific Heat vs Temperature(Cp(T)) | Curve (9 pts) | BTU/(lb·°F) | — | — | |
Thermal Conductivity vs Temperature(k(T)) | Curve (10 pts) | BTU/(hr·ft·°F) | — | — |
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.