国际标准 · ISO

Grade HR3

ISO 5002:2008 — Hot-rolled and cold-reduced electrolytic zinc-coated carbon steel sheet of commercial and drawing qualities

化学成分

wt% · 对数刻度
0.0010.010.11C0.06Cr0.15Cu0.2Mn0.4Mo0.06Nb0.008Ni0.2P0.03S0.03Ti0.008V0.008
  • min – max 范围
  • 典型值

力学性能

按热处理状态分组
抗拉强度 Rm270–400 MPa抗拉强度 Rm270–400 MPa伸长率 A≥34 %伸长率 A≥33 %薄板  热轧  3 <= t <= 6 mm  (t - 厚度)抗拉强度 Rm270–400 MPa抗拉强度 Rm270–400 MPa伸长率 A≥29 %伸长率 A≥28 %薄板  热轧  t < 3 mm  (t - 厚度)

化学成分

ElementminmaxSimilarRemarks
C0.06
Cr0.15The sum of Cr and Mo shall not exceed 0.16%. When one or more these elements are specified
Cu0.2The sum of Cu
Mn0.4
Mo0.06
Nb0.008> 0.008% by agreement
Ni0.2
P0.03
S0.03
Ti0.008> 0.008% by agreement
V0.008> 0.008% by agreement

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  热轧  3 <= t <= 6 mm  (t - 厚度)270–400≥34 Lo = 50mm；≥33 Lo = 5.65√So
薄板  热轧  t < 3 mm  (t - 厚度)270–400≥29 Lo = 50mm；≥28 Lo = 80 mm