steel for automotive axle tubes-k8凯发官网
steel for automotive axle tubes
1 main use
steel for automobile drive shaft tube series, special steel for axle tube for automobile supporting pipe factory
2 grades and standards
grade 440qz 480qz 700qz; standard: "technical agreement for steel hot rolled steel sheet for shaft tubes".
3 technical conditions of supply
3.1 product specifications
2.0～19×800～1650×c
3.3 mechanical properties
牌号 | 拉伸试验(横向) | 180°冷弯试验 b=35mm | ||
抗拉强度rm (mpa) | 屈服强度rel (mpa) | 伸长率a50 (%) | ||
ag440qz | 500-600 | ≥440 | ≥22 | 2a |
ag480qz | 550-650 | ≥470 | ≥22 | 2a |
ag700qz | ≥690 | ≥550 | ≥16 | 2a |