1 Material Records Qualified
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Designation • Canonical GradeSubfamilyStandard IdentifiersConductivity (% IACS)Yield & ContextDensityStatusActions
SAE 4140 Alloy SteelAlloy Steel
SAE: 4140AISI: 4140SPECIFICATION: SAE 4140 Alloy Steel Engineering Datasheet
—≥ 740 MPaMINIMUM · Quenched and tempered (voestalpine supply) · Bar · 10–100 mm · voestalpine supply properties for the stated section range; source does not specify test temperature. Not extrapolated to other products or heat treatments.7.85 g/cm³TYPICALVERIFIED