Belleville Spring Materials

Materials include, but are not limited to:

H-13 Tool Steel

A chromium-molybdenum-vanadium hot work tool steel designed for extreme toughness indoor and outdoor at temperatures ranging from ambient to +1100 deg F. H13’s abrasion resistance and excellent shock resistance is well suited for structural applications where retained strength at elevated temperatures is required.

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6150 Alloy Steel

A strong, oil hardened, chromium-vanadium alloy steel with strong wear and abrasion resistance, and excellent ductility and shock resistance. This alloy is suitable for highly stressed parts exposed to shock and vibration, and has a service temperature range of -60 to +420 deg F.

301 Stainless Steel

An austenitic chromium-nickel stainless steel not hardenable by heat treatment. High tensile properties of sheets are the result of cold rolling. Service temperature ranges from -330 to +390 deg F. This stainless is highly resistant to strong oxidizing acids, and resists attack by a wide variety of organic and inorganic chemicals.

17-7 PH Stainless Steel

A chromium-nickel stainless steel capable of being precipitation hardened by simple heat treatment. In the hardened condition, it possesses excellent mechanical properties both at room temperature and elevated temperatures up to 700-800 deg F. This material also has good cryogenic properties to -330 deg F. Corrosion resistance is superior to that of the straight chromium grades, and approaches the chromium-nickel grades.

15-7 PH Stainless Steel

Essentially identical to 17-7 PH except 2% of the chromium is replaced with 2% molybdenum which provides better elevated temperature properties.

Inconel 718

A high strength, corrosion resistant nickel-chromium alloy used at temperatures from -330 to +1300 deg F. This age-hardenable material has excellent resistance to oxidation at higher temperatures, is non-magnetic, and has good tensile, fatigue, creep, and rupture strength.

Inconel X-750

This age-hardenable nickel-chromium alloy is very tough, non-magnetic, and has excellent endurance properties with high resistance to fatigue, corrosion and oxidation. For springs, X750 is used down to cryogenic temperatures of -423 deg and up to +1200 deg F.

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410 Stainless Steel

A general utility-grade chromium-stainless steel. It is ferromagnetic, air-hardening, and highly corrosion resistant.

Carpenter 455 Stainless Steel

A stainless steel that combines high tensile strength with good cryogenic properties.

Other available materials (but not limited to):

1074/1075 High Carbon Steel