Machine Design

Stainless-Steel Spring Wire

Santex spring wire, developed from a general-purpose, austenitic AISI 302 stainless steel, has high fatigue resistance and low relaxation rates.


The ductile wire forms easily and has a good surface finish. Low-temperature heat treatment improves the wire's tensile strength and relaxation properties. A 1-hr temper typically increases tensile strength by 400 to 500 MPa. The wire is available in coated, bright, and nickel-coated forms with diameters from 0.2 to 1.5 mm.

Sandvik Materials Technology Co., Box 1220, Scranton, PA 18501, (570) 585-7701,

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