Q255 iron wire
Chemical composition
|
Grade
|
C
|
Mn
|
Si
|
S
|
P
|
|
Q255-A
|
0.18-0.28
|
0.40-0.70
|
≤0.30
|
≤0.050
|
≤0.045
|
|
Q255-B
|
0.18-0.28
|
0.40-0.70
|
≤0.30
|
≤0.045
|
≤0.045
|
physical properties
|
grade
|
state
think（diameter）mm
|
yield point
σs / MPa (≥)
|
tensile strength
σb /MPa (≥)
|
Elongation
δ5 / % (≥)
|
|
Q255
|
≤16
|
255
|
410~550
|
24
|
|
>16~ ≤40
|
245
|
410~550
|
23
|
|
|
>40~ ≤60
|
235
|
410~550
|
22
|
|
|
>60~ ≤100
|
225
|
410~550
|
21
|
|
|
>100~ ≤150
|
215
|
410~550
|
20
|
|
|
>150
|
205
|
410~550
|
19
|
grade Comparison
|
china
GB
|
American
ASTM
|
International
ISO
|
Japan
JIS
|
Germany
DIN
|
UK
BS
|
French
NF
|
|
Q255
|
－
|
SS400
SM400A |
－
|
－
|
－
|
－
|
Q255 Performance
Q255 good strength and cold, hot pressure processing performance, plasticity and welding less
Q255 good strength and cold, hot pressure processing performance, plasticity and welding less
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[Source：Original]
[Author：web]
[Date：09-01-13]
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