冷镦钢和螺栓用钢　　一、日本JIS标准冷镦用碳钢盘条的钢号与化学成分[JIS G3507（1991）]（表4-3-46）　　　　　　　　　　　　　　　　　　表4-3-46　冷镦用碳钢盘条的钢号与化学成分（质量分数）（%）钢号CSiMnP≤S≤Al沸腾钢SWRCH6RSWRCH8RSWRCH10RSWRCH12RSWRCH15RSWRCH17R≤0.08≤0.100.08-0.130.10-0.150.13-0.180.15-0.20------≤0.60≤0.600.60-0.600.60-0.600.60-0.600.60-0.600.0400.0400.0400.0400.0400.0400.0400.0400.0400.0400.0400.040------铝镇静钢SWRCH6ASWRCH8ASWRCH10ASWRCH12ASWRCH15ASWRCH16ASWRCH18ASWRCH19ASWRCH20ASWRCH22A≤0.08≤0.100.08-0.130.10-0.150.13-0.180.13-0.180.15-0.200.15-0.200.18-0.200.18-0.23≤0.10≤0.10≤0.10≤0.10≤0.10≤0.10≤0.10≤0.10≤0.10≤0.10≤0.60≤0.600.60-0.600.60-0.600.60-0.600.60-0.900.60-0.900.70-1.000.30-0.600.70-1.000.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0350.0350.0350.0350.0350.0350.0350.0350.0350.035≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02≤0.02镇静钢SWRCH10KSWRCH12KSWRCH15KSWRCH16KSWRCH17KSWRCH18KSWRCH20KSWRCH22KSWRCH24KSWRCH25KSWRCH27KSWRCH30KSWRCH33KSWRCH35KSWRCH38KSWRCH40KSWRCH41KSWRCH43KSWRCH45KSWRCH48KSWRCH50K0.08-0.130.10-0.150.13-0.180.13-0.180.15-0.200.15-0.200.18-0.230.18-0.230.19-0.250.22-0.280.22-0.290.27-0.330.30-0.360.32-0.380.35-0.410.37-0.430.36-0.440.40-0.460.42-0.480.45-0.510.47-0.530.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.10-0.350.30-0.600.30-0.600.30-0.600.60-0.900.30-0.600.60-0.900.30-0.600.70-1.001.35-1.650.30-0.601.20-1.500.60-0.900.60-0.900.60-0.900.60-0.900.60-0.901.35-1.650.60-0.900.60-0.900.60-0.900.60-0.900.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0300.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.0350.035---------------------　　二、日本JIS标准冷镦用碳钢钢丝的钢号与力学性能[JIS　G3539（1991）]（表4-3-47）　　1.经D工序的碳钢钢丝的钢号与力学性能，见表4-3-47　　　　　　　　　　　　　　　　　　　　　表4-3-47　经D工序的碳钢钢丝的钢号与力学性能钢号钢丝直径抗拉强度Ъ/MPa面缩率φ%伸长率δ%硬度HRBSWCH6RSWCH8RSWCH10RSWCH6ASWCH8ASWCH10A≤3≥540≥45--＞3-4≥440≥45--＞4-5≥390≥45--＞5≥340≥45≥11≤85SWCH12RSWCH15RSWCH12ASWCH15ASWCH12KSWCH15K≤3≥590≥45--＞3-4≥490≥45--＞4-5≥410≥45--＞5≥360≥45≥10≤90SWCH17RSWCH16ASWCH18ASWCH20ASWCH15K≤3≥690≥45--＞3-4≥590≥45--＞4-5≥490≥45--＞5≥410≥45≥7≤95SWCH19ASWCH16KSWCH17KSWCH18KSWCH20K≤3≥640≥45--＞4-5≥540≥45--＞5-30≥440≥45≥7≤95SWCH22ASWCH22KSWCH25K＞3-4≥690≥45--＞4-5≥570≥45--＞5≥470≥45≥6≤98　　注：1.D工序是将盘条冷拉精加工，盘条的化学成分见表4-3-46。　　　　2.表中的伸长率和硬度为参考值。