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GB /T 18254-2002
High-carbon Chromium Bearing Steel
Material Designation Chemical Composition (%)
GCr4 (B00040)
Min
Max
GCr15 (B00150)
Min
Max
GCr15SiMn (B01150)
Min
Max
GCr15SiMo (B03150)
Min
Max
GCr18Mo (B02180)
Min
Max
For Reference Only