Compressor valve steel grades

Sandvik's program of hardened and tempered compressor valve steel includes two types of stainless steel and one carbon steel.

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List of compressor valve steel grades
Sandvik grade Description
Sandvik Hiflex® A new generation of high-fatigue resistance stainless chromium steel giving design freedom for valves in high-frequency and high-pressure compressors.
Sandvik 7C27Mo2 A martensitic stainless chromium steel alloyed with molybdenum that has higher fatigue strength than Sandvik 20C.
Sandvik 20C* A carbon steel with 1% carbon, offering high fatigue strength.
Tensile strength and thicknesses
Sandvik grade Tensile strength, MPa (ksi) Thickness, mm (in.)
Sandvik Hiflex® 1900 (276) 0.152-1.0
Sandvik 7C27Mo2 1800 (261) 0.152-1.2
Sandvik 20C* 1600-2100 (232-305) 0.152-1.2

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