德国 · DIN

1.6368

SEW 028:1993 — Non-alloy and alloy steels with specified properties at moderately elevated and elevated temperatures for pressure vessel purposes; Technical delivery conditions for flat products

化学成分

元素minmax相似备注
Al0.015
C0.17
Cr0.3
Cu0.50.8
Mn0.81.2
Mo0.250.5
N0.02
Nb0.0150.045
Ni11.3
P0.03
S0.025
Si0.250.5

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
棒材  正火及回火  <= 60 mm≥410
棒材  淬火和回火  <= 60 mm590–670≥16≥41 DVMHB 175–225 HB30

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
217.0010.50371.00

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

屈服强度 Rp0.2 (MPa)
温度 ℃近似
450285
400315
350335
300345
200365

蠕变性能

温度 ℃时间 hRp1CRS
40010000.0h324.0402.0
400100000.0h294.0373.0
41010000.0h315.0285.0
410100000.0h279.0349.0
42010000.0h306.0368.0
420100000.0h263.0325.0
43010000.0h295.0348.0
430100000.0h245.0300.0
44010000.0h281.0328.0
440100000.0h227.0273.0
45010000.0h265.0304.0
450100000.0h206.0245.0
46010000.0h239.0274.0
460100000.0h180.0210.0
47010000.0h212.0242.0
470100000.0h151.0175.0
48010000.0h180.0212.0
480100000.0h120.0139.0
49010000.0h145.0179.0
490100000.0h84.0104.0
50010000.0h108.0147.0
500100000.0h49.039.0

热处理

类别1
热处理曲线CCT
热处理曲线TTT