X39CrMo17-1
1.4122Hardenable martensitic stainless steel with Mo addition for improved corrosion resistance and hardenability. Higher Cr (15.5-17.5%) than basic Cr13 grades. Achieves 220-275 HB after QT. Good resistance to nitric acid, water, steam, acetone, alcohol, and glycerine. Used for pump shafts, valve components, springs, fasteners, turbine blades, and food processing equipment requiring both hardness and corrosion resistance.
Mechanical properties — Pro
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304 Stainless Steel
1.4301The most widely used austenitic stainless steel. Excellent corrosion resistance, good formability and weldability. Standard choice for food processing, chemical, and architectural applications.
316L
1.4404Low-carbon austenitic stainless steel with molybdenum addition. Superior corrosion resistance to 304, especially against chlorides and pitting. Standard choice for chemical processing, marine, medical implants, and pharmaceutical equipment.
430 Stainless Steel
1.4016Ferritic chromium stainless steel with good corrosion resistance and formability. Lower cost than austenitic grades. Used for automotive trim, kitchen sinks, architectural panels, and appliance components.
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