Ganter Norm Standard Parts - Catalogue Page 2167
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Material Characteristics of Stainless Steel AISI Standard 431 German Material No. 1.4057 DIN / EN-Number EN 10088-3 440C 304 303 1.4125 1.4301 1.4305 EN 10088-3 EN 10088-3 EN 10088-3 Alloying components % X 17 CrNi 16-2 C ≤ 0,12 ... 0,22 Cr 15,0 … 17,0 Ni 1,5 … 2,5 X 105 CrMo 17 C ≤ 0,95 … 1,2 Cr 16,0 … 18,0 X 5 CrNi 18-10 C ≤ 0,07 Cr 17,5 … 19,5 Ni 8,0 … 10,5 X 8 CrNiS 18-9 C ≤ 0,10 S ≤ 0,15 … 0,35 Cr 17,0 … 19,0 Ni 8,0 … 10,0 Minimum tensile strength Rm in N/mm2 800 … 950 750 … 1500 500 … 700 500 … 700 Yield strength Rp0,2 in N/mm2 ≥ 600 ≥ 190 ≥ 190 Machinability poor poor ... medium medium very good Forgeability medium – good poor Weldability good magnetic, martensitic structure for elements with high stability, can be used up to 400 °C poor magnetic, martensitic structure, thoroughly heat treatable, high wear resistance excellent antimagnetic, austenitic structure suitable for low temperatures, can be used up to 700 °C poor antimagnetic, austenitic structure good medium good medium however, sensitive to intercrystalline corrosion Freshwater, oil, gasoline, alcohol, dairy products resistant to corrosion, in the natural environment: water, rural and urban atmospheres without significant chloride or acid concentrations, in food areas and in agricultural food areas due to the sulphur content reservations in environments which contain acids and chlorides Food industry Agriculture Chemical industry Vehicle construction Construction industry Machine construction Decorative purposes (Kitchen equipment) Vehicle construction Electronics Decorative purposes (Kitchen equipment) Machine construction Symbol Special characteristics Corrosion resistance Main areas of application - Blades, surgical Vehicle construction cutting instruments, Chemical industry ball bearings, valves Aviation Machine construction Food industry The characteristics described should be treated as guidelines only. No guarantee is made. The exact conditions of use have to be taken into account individually. Page 2166 | Material Characteristics
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