Welcome to LUXING STEEL PIPE!
GB/T8162-2008
Standard Specification: GB/T8162-2008
●Steel grades, Chemical composition and Mechanical properties
Category:
Structural and engineering pipe for construction
TEL：
Email：
Keyword：
GB/T8162-2008
Product Details
Standard Specification: GB/T8162-2008
●Steel grades, Chemical composition and Mechanical properties
|
Steel
|
Chemical composition (%) 化学成份
|
Mechanical properties 机械性能
|
|||||||||
|
Grade
|
C
|
Si
|
Mn
|
P
|
S
|
Mo
|
Cr
|
Cu
|
Yield strength
|
Tensile strength
|
Elongation
|
|
钢级
|
屈服强度
|
抗拉强度
|
伸长率
|
||||||||
|
|
MPa
|
MPa
|
（%）
|
||||||||
|
|
Max
|
Max
|
Max
|
Max
|
Max
|
Min
|
Min
|
Min
|
|||
|
Q345B
|
0.12-0.20
|
0.20-0.55
|
1.20-1.60
|
0.035
|
0.035
|
0.25
|
0.25
|
0.25
|
325
|
490
|
21
|
|
45Mn2
|
0.42-0.49
|
0.17-0.37
|
1.40-1.80
|
0.035
|
0.035
|
0.25
|
0.25
|
0.25
|
560
|
700
|
13
|
|
27SiMn
|
0.24-0.32
|
1.10-1.40
|
1.10-1.40
|
0.035
|
0.035
|
0.3
|
0.3
|
0.2
|
500
|
680
|
14
|
Message