德国 · DIN

1.0562

DIN 17125:1997 — Square and rectangular fine grain steel tubes (hollow sections) for structural steelwork; technical delivery conditions

化学成分

元素minmax相似备注
Al0.02If nitrogen is additionally fixed by niobiumIf nitrogen is additionally fixed by niobium
C0.2
Cr0.3
Cr+Cu+Mo0.45
Cu0.2
Mn0.91.65
Mo0.08
N0.02
Nb0.05
Nb+Ti+V0.12
Ni0.3The value for Nickel may be at max0The value for Nickel may be at max0
P0.035
S0.03
Si0.10.5
V0.1

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
空心棒材  正火  t <= 20 mm≥355 Upper Yield Stress490–630≥22 Parallel to the tube axis≥39 Charpy V Notch (-20°C)

物理性能

-100.0

弹性模量平均热膨胀系数热导率比热容电阻率密度泊松比
217.0010.8037.60371.000.18

典型物理值

密度弹性模量泊松比备注
7.86203.000.27–0.30低碳,低合金钢的典型性能数值。此值不来源于标准,它是指示性指标,不能被用于设计用途。

高/低温力学性能

冲击功 Kv/Ku (J)
热处理 / 状态温度 ℃min备注
空心棒材  正火  t <= 20 mm-2039Charpy V Notch