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Steel Balls and rollers Different Countries' Raw Materials No. & Comparison of Chemical Compositions: CHINA  RUSSIA  AMERICA  BRITAIN  FRANCE  GERMANY  JAPAN  GCr15  ⅢX15  52100 S135、534A99  100C6  100Cr6  SUJ-2 GCr15  C  Mn  Si  Cr  S  P  0.95~1.05  0.25~0.45  0.15~0.35  1.40~1.65  <=0.025  <=0.025 ⅢX15 C  Mn  Si  Cr  S  P  0.95~1.05  0.20~0.40  0.15~0.35  1.30~1.65  <=0.020  <=0.027 SUJ-2 C  Mn  Si  Cr  S  P  0.95~1.05  0.20~0.40  0.15~0.35  1.30~1.65  <=0.020  <=0.027 SAE52100 C  Mn  Si  Cr  S  P  0.95~1.05  0.20~0.40  0.15~0.35  1.30~1.65  <=0.020  <=0.027 100Cr6 C  Mn  Si  Cr  S  P 0.95~1.05  0.20~0.40  0.15~0.35  1.30~1.65  <=0.020  <=0.027

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