易切削钢 (free cutting steel)又称自动钢
Y100Pｂ易车铁
A12 C1109 SUM12 Y12 Y100Pb
Y15 Y15Pｂ B1113 220M07 SUM22 10S20 SUM22L 1213 1215 12L14 1144
Y20 A20 C1120 SUM32 20F2 22S20
Y30 A30 C1130 SUM42 35S20
Y40Mn A40Г C1144 225M36 45MF2 40S20 SUM24L 9SMnPb28.45S20.
易切削不锈钢：303 303Cu 303MA 316F 316L，416 416F 420F 430F 430FR Y0Cr18Mo2
易削切钢
SUM11 SUM12 SUM21 SUM22 SUM23 SUM25 SUM31 SUM32 SUM22L SUN23L SUM24L SUM31L AISI1008
1110 1109 1212 1213 1215 1117 12L14 1135 1144
9SMn28.15S20.35S20.45S20.SUM22
Y12.Y15.Y15Pb.Y20.Y30.Y40Mn.Y100Pb.Y100Bi.
