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Seamless steel pipe for fluid
Category:
Liquid service tube and pipe
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Keyword：
water steel pipe
liquid steel pipe
fluid steel pipe
Product Details
Seamless steel pipe for fluid (GB / T8163)
Chinese Standard: GB / T8163-2008,GB/T8163-2018
Steel grade: 20, Q345B, Q345C, Q345D,Q355B,Q355D
Delivery status: hot rolled,Cold drawn,hot expanded
Specification range: outer diameter 17.1MM-914MM, wall thickness 1MM-65MM
Tolerance: According to GB / T8163-2008,2018 standard
Length: according to customer requirements
Certificate: GB / T19001-2008
● Chemical composition (melting analysis)%
|
钢级
|
C
|
Si
|
Mn
|
P
|
S
|
Nb
|
V
|
Ti
|
Cr
|
Ni
|
Cu
|
N
|
Mo
|
B
|
Als
|
|
20
|
0.17-0.23
|
0.17-0.37
|
0.35-0.65
|
/
|
/
|
/
|
/
|
/
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≤0.25
|
≤0.30
|
≤0.25
|
/
|
/
|
/
|
/
|
|
Q345B
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≤0.20
|
≤0.50
|
≤1.70
|
≤0.035
|
≤0.035
|
≤0.07
|
≤0.15
|
≤0.20
|
≤0.30
|
≤0.50
|
≤0.30
|
≤0.012
|
≤0.10
|
/
|
/
|
|
Q345C
|
≤0.20
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≤0.50
|
≤1.70
|
≤0.035
|
≤0.030
|
≤0.07
|
≤0.15
|
≤0.20
|
≤0.30
|
≤0.50
|
≤0.30
|
≤0.012
|
≤0.10
|
/
|
≥0.015
|
|
Q345D
|
≤0.18
|
≤0.50
|
≤1.70
|
≤0.035
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≤0.025
|
≤0.07
|
≤0.15
|
≤0.20
|
≤0.30
|
≤0.50
|
≤0.30
|
≤0.012
|
≤0.10
|
/
|
≥0.015
|
● Mechanical properties
|
钢级
|
屈服强度 min Mpa
|
抗拉强度
|
伸长率
|
冲击试验
|
|||
|
T in mm
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Mpa
|
||||||
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≤16
|
＞16 ≤30
|
＞30
|
|
温度/℃
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冲击功/J
|
||
|
|
≥
|
||||||
|
20
|
245
|
235
|
225
|
≥410
|
≥20
|
-
|
-
|
|
Q345B
|
345
|
325
|
295
|
470-630
|
≥20
|
20
|
34
|
|
Q345C
|
345
|
325
|
295
|
470-630
|
≥21
|
0
|
34
|
|
Q345D
|
345
|
325
|
295
|
470-630
|
≥21
|
-20
|
34
|
|
备注：均为轧态交货,或退火状态
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