德国 · DIN

StE 355

DIN 17179:1986 — Seamless circular tubes of fine grain steels for special requirements; 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
Seamless tubes    12 < d <= 20 mm  (横向)≥355490–630≥20≥31 ISO V-Notch acc. to DIN 50115
Seamless tubes    12 < d <= 20 mm  (纵向)≥355490–630≥22≥55 ISO V-Notch acc. to DIN 50115
Seamless tubes    20 < d <= 40 mm  (横向)≥345490–630≥20≥31 ISO V-Notch acc. to DIN 50115
Seamless tubes    20 < d <= 40 mm  (纵向)≥345490–630≥22≥55 ISO V-Notch acc. to DIN 50115
Seamless tubes    40 < d <= 50 mm  (横向)≥335490–630≥20≥31 ISO V-Notch acc. to DIN 50115
Seamless tubes    40 < d <= 50 mm  (纵向)≥335490–630≥22≥55 ISO V-Notch acc. to DIN 50115
Seamless tubes    50 < d <= 65 mm  (横向)≥325490–630≥20≥31 ISO V-Notch acc. to DIN 50115
Seamless tubes    50 < d <= 65 mm  (纵向)≥325490–630≥22≥55 ISO V-Notch acc. to DIN 50115
Seamless tubes    t <= 12 mm  (横向)≥355490–630≥20≥31 ISO V-Notch acc. to DIN 50115
Seamless tubes    t <= 12 mm  (纵向)≥355490–630≥22≥55 ISO V-Notch acc. to DIN 50115

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。

相似牌号

牌号地区标准体系
StE 355德国SEW
1.0562德国DIN