E550圆钢
说明 | DESCRIPTION:
焊接结构用高强度淬火回火钢
产品信息 | Product Information
E550 | ||||||||||||||
化学成分(wt%) | ||||||||||||||
碳 C | 硅 Si | 锰 Mn | 硫 S | 磷 P | 铬 Cr | 镍Ni | 钼Mo | 矾V | 铌Nb | 钛Ti | 锆Zr | 硼B | 氮N | 铜Cu |
≤0.20 | 0.10~0.80 | ≤1.70 | ≤0.035 | ≤0.035 | ≤2.00 | ≤2.00 | ≤1.00 | ≤0.10 | ≤0.060 | ≤0.20 | ≤0.15 | ≤0.005 | ≤0.020 | ≤1.50 |
基本力学性能 | ||||||||||||||
抗拉强度 | 屈服强度 | 伸长率 | 断面收缩率 | 冲击功 | 硬度 | |||||||||
650~830 | ≥550 | ≥16 | ≥39J |