CM490合金钢

　　CM490合金钢化学成分

　　卡片

　　化学成分，％

　　C

　　si

　　Mn

　　p

　　s

　　ALS

　　CM490

　　≤0.24

　　1.10 ～1.60

　　0.15 ～0.55

　　≤0.035

　　≤0.035

　　≥0.015

　　卡片

　　CM490合金钢机械性能

　　符号点（σs）mpa

　　拉伸强度（σb）MPA

　　榆树扩展（δ5）％

　　冲击测试AKV/J

　　冷弯180°

　　D弯曲心脏直径

　　增强名义直径

　　CM490

　　≥295

　　490?690

　　≥22

　　≥27（0℃）

　　D1。

　　CM490 plates can be called CM490 steel plate, CM490 steel plate, CM490 rolling plate, CM490 open tablet, CM490 belt steel, CM490 cold rolled plate, CM490 hot rolled plate, CM490 thin plate, CM490 mid plate, CM490 thick plate, CM490 special thick盘子等

　　CM490 rods can be called CM490 round steel, CM490 round steel, CM490 disk circle, CM490 wire, CM490 silk material, CM490 forging circle, CM490 round rod, CM490 black rod, CM490 light, CM490 vehicle light circle, CM490 vehicle light circular circle, CM490热圆形钢，CM490圆形滚动，CM490冷拉圆钢等。

　　CM490管道可称为CM490钢管，CM490钢管，CM490不锈钢无缝管，CM490无缝管，CM490钢焊接管，CM490焊接管，CM490精密管，CM490精密管道，CM490毛细管等。