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Oil-Tempered: General purpose spring material used for springs where the cost of music wire is prohibitive and for sizes outside the range

of music wire. This material is not suitable for shock or impact loading. It is generally available in diameters up to .472” (12mm). It has a

usable temperature range of 32 to 356 F (0 to 180 C). Will not generally change dimensions under heat. Can be plated.

Music Wire:  The most widely used of all spring materials for small springs because it is the toughest. It has the highest tensile strength

and can withstand higher stresses under repeated loading conditions than any other spring material. It generally can be obtained in

diameters up to 0.118” (3mm). It has a usable temperature range of 32 to 248 F (0 to 120 C). Will contract under heat and can be plated.

Chrome-Silicon:  An excellent sprng material for highly stressed springs requiring both long life and/or shock loading resistance.  Can be

used for temperatures up to 480 F (250 C).  It will not generally change dimensions under heat. Can be plated.

Chrome Vanadium:  Popular alloy spring steel for improved stress, fatigue, long endurance life conditions as compared to high carbon

steel materials. This material is suitable for impact and shock loading conditions. It is generally available in sizes up to 0.472” (12mm). It

can be used for temperatures up to 428 F (220 C).  Will not generally change dimensions under heat. Can be plated.

Type 302 Stainless Steel:  Cold drawn general purpose corrosion and heat resistant. Magnetic in spring temper. Max operating

temperature 550 F (288 C).

Type 17-7 Stainless Steel:  Cold drawn and precipitation hardened after fabrication. High strength and general purpose corrosion

resistance. Slighly magnetic. Max operating temperature 650 F (343 C).

Type 316 Stainless Steel:  Better corrosion resistance than Type 302. Magnetic in spring temper. Max operating temperature 550F (288C).

Note: Other materials are available for quote. These are the most commonly used.