Common Spring Materials

Music Wire

Cold drawn with high and uniform tensile

Wire size range: .009”- .283”

Operating range of 32 to 250 F

Standard Specification per ASTM A228

Benefits: Low cost, good for Cyclic applications, readily available.

Oil Tempered Spring Wire (OTMB)

Wire size range: .020”- .625”

Operating range of 32 to 250 F

Standard Specification per ASTM A229

Benefits: Low cost, readily available, wide range of sizes

Oil Tempered Chrome Silicon

Wire size range: .020”- .625”

Operating range of 32 to 400 F

Standard Specification per ASTM A401

Benefits: Low cost, readily available, wide range of sizes, good elevated temperature vs other carbon steel spring wires.

302 S/S

Wire size range: .014”- .625”

Operating range of 32 to 500 F

Standard Specification per ASTM A313

Benefits: Low cost, readily available, wide range of sizes, good at elevated temperature, moderate corrosion resistance.

Other: Magnetic in spring tempered form

316 S/S

Wire size range: .012”- .625”

Operating range of 32 to 500 F

Standard Specification per ASTM A313

Benefits: Low cost, readily available, wide range of sizes, good at elevated temperature, better corrosion resistance than 302 S/S.

Other: Slightly less Magnetic in spring tempered form than 302S/S. Slightly weaker than 302 S/S.

17-7 PH

Wire size range: .012”- .625”

Operating range of 32 to 650 F

Standard Specification per ASTM A313

Benefits: moderate cost, readily available, wide range of sizes, good at elevated temperature, great tensile strength. Corrosion resistance.

Other: Slightly Magnetic in spring tempered.