国际标准 · ISO

Grade 550

ISO 9364:2011 — Continuous hot-dip 55 % aluminium/zinc alloy-coated steel sheet of commercial, drawing and structural qualities

化学成分

wt% · 对数刻度
0.0010.010.1110C0.25Cr0.15Cr+Mo0.16Cr+Ni+Cu+Mo0.5Cu0.2Mn1.15Mo0.06Nb0.008Ni0.2P0.2S0.04Ti0.008V0.008
  • min – max 范围
  • 典型值

力学性能

按热处理状态分组
屈服强度 Rp0.2≥550 MPa抗拉强度 Rm≥560 MPa硬度HR

化学成分

元素minmax相似备注
C0.25Product analysis tolerance +0.04%Product analysis tolerance +0.04%
Cr0.15Product analysis: Cr <= 0.19% maxProduct analysis: Cr <= 0.19% max
Cr+Mo0.16When one or more of these elements are specifiedWhen one or more of these elements are specified
Cr+Ni+Cu+Mo0.5When one or more of these elements are specifiedWhen one or more of these elements are specified
Cu0.2Product analysis: Cu <= 0.23% maxProduct analysis: Cu <= 0.23% max
Mn1.15Product analysis tolerance +0.05%Product analysis tolerance +0.05%
Mo0.06Product analysis: Mo <= 0.07% maxProduct analysis: Mo <= 0.07% max
Nb0.008Product analysis: Nb <= 0.018% max; For interstitial free steels onlyProduct analysis: Nb <= 0.018% max; For interstitial free steels only
Ni0.2Product analysis: Ni <= 0.23% maxProduct analysis: Ni <= 0.23% max
P0.2Product analysis tolerance +0.01%Product analysis tolerance +0.01%
S0.04Product analysis tolerance +0.01%Product analysis tolerance +0.01%
Ti0.008Product analysis: Ti <= 0.018% max; Heat analysis greater than 0Product analysis: Ti <= 0.018% max; Heat analysis greater than 0
V0.008Product analysis: V <= 0.018% max; Heat analysis greater than 0Product analysis: V <= 0.018% max; Heat analysis greater than 0

力学性能

热处理 / 状态屈服强度抗拉强度伸长率断面收缩率冲击功硬度
薄板  非退火≥550≥560HR ≥85 HRB