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Luoyang Mingzhen Bearing Steel Ball Co., Ltd is one of the famous 440C stainless steel balls manufacturers and suppliers in China,Website:http://www.mzballs.com, providing with 440C stainless steel balls free sample, welcome to import high precision bulk ball bearings in stock from our factory.440C stainless steel balls have similar material strength and accuracy with AISI 52100 chrome steel balls. Besides, the material of 440C stainless steel ball resist corrosion from water, food, alcohol, organic materials and many petroleum products. Thus, 440C stainless steel balls are widely used in stainless steel bearings, valves, pumps, petroleum, navigation etc.440C STAINLESS STEEL BALL Size range0.50mm (0.02& quot;) up to 50.8mm (2& quot;)GradesG3, G5, G10, G16, G20, G24, G28, G40, G60, G100, G200HardnessHRC 58 Min.?MATERIAL CONVERSIONGB (China)9Cr18MoASTM/AISI (USA)440CJIS (Japan)SUS440C?CHEMICAL COMPOSITION STEEL NUMBER440CCarbon (C)0.95% - 1.10%Silicon (Si)0.8% Max.Manganese (Mn)0.8% Max.Phosphorous (P)0.035% Max.Sulphur (S)0.03% MaxNickel (Ni)3%Chromium (Cr)16% - 18%?PHYSICAL CHARACTERISTICS Tensile strength285,000 psiYield strength275,000 psiModulus of Elasticity29,000,000 psiDensity0.277 lbs/in3Corrosion resistanceYes, comparison details as below chart.MagneticYes?APPLICATION Bearings, Pumps, Valves etc.