What are the main differences between Stainless Steel 302, 304, 316, and 17-7PH spring wire alloys?
Stainless Steel 302, 304, 316, and 17-7PH spring wire alloys exhibit significant differences in composition and performance characteristics, making them suitable for diverse applications.
Stainless Steel 302 is a general-purpose austenitic alloy with excellent corrosion resistance and good strength properties. It is commonly used in applications where moderate spring properties and resistance to moisture and mildly corrosive environments are required.
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Stainless Steel 304 is another widely used austenitic alloy renowned for its outstanding corrosion resistance, making it suitable for various environments, including marine and chemical settings. It offers good formability and strength, making it an excellent choice for springs exposed to mildly aggressive conditions.
Stainless Steel 316, on the other hand, is a molybdenum-bearing austenitic alloy known for its superior corrosion resistance, particularly in harsh and corrosive environments, such as marine and chloride-rich atmospheres. It exhibits higher tensile and creep strength than 302 and 304, making it ideal for springs subjected to elevated temperatures or highly corrosive conditions.