Chemical composition
|
Grade
|
C
|
Mn
|
Si
|
S
|
P
|
|
Q215-A
|
0.09-0.15
|
0.25-0.55
|
≤0.30
|
≤0.050
|
≤0.045
|
|
Q215-B
|
0.09-0.15
|
0.25-0.55
|
≤0.30
|
≤0.045
|
≤0.045
|
physical properties
|
grade
|
state
think（diameter）mm
|
yield point
σs / MPa (≥)
|
tensile strength
σb /MPa (≥)
|
Elongation
δ5 / % (≥)
|
|
Q215
|
≤16
|
215
|
335~ 450
|
31
|
|
>16~ ≤40
|
205
|
335~ 450
|
30
|
|
|
>40~ ≤60
|
195
|
335~ 450
|
29
|
|
|
>60~ ≤100
|
185
|
335~ 450
|
28
|
|
|
>100~ ≤150
|
175
|
335~ 450
|
27
|
|
|
>150
|
165
|
335~ 450
|
26
|
grade Comparison
|
China GB
|
American ASTM
|
Japan JISG
|
Germany DIN
|
UK BS
|
French NF
|
international
ISO
|
|
Q215
|
Gr.C
Gr.58 |
SS330
SPHC
SPHD
|
-
|
040A12
|
－
|
－
|
Q215 features
Characteristics and uses with the Q195 is basically the same, but slightly higher strength, lower ductility
Characteristics and uses with the Q195 is basically the same, but slightly higher strength, lower ductility
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[Source：Original]
[Author：web]
[Date：09-01-13]
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