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邢钢开发的0.020%-0.060%S钻头用XGML40Cr钢(/%:0.38—0.44C,0.17—0.30Si,0.60~0.80Mn,≤0.035P,0.020~0.060S,0.90—1.10Cr,≤0.01A1)的生产流程为50tBOF—LF-285mm×320mm坯连铸-热轧成qbl2mm线材。对0.027%S的XGML40Cr和0.006%S的ML40Cr盘条试样进行进刀量0.015mm/r,切削深度0.1mm,切削速度12—30m/min的切削试验。试验结果表明,XGMIAOCr