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carbon steel plate,steel coil,stainless steel plate,china export service provider.
GB/T 700 is divided into 4 quality grades: Q235A, Q235B, Q235C and Q235D; Density of this steel is 7.85 g/cm3, tensile strength is 370-500 MPa; yield strength is 235 MPa (data are for steel bar or steel plate diameter ≤ 16mm). Since it’s mild steel, it is used directly without heat treatment
GB/T700 Q235A
C % |
Si % |
Mn % |
P % |
S % |
N % |
0.23-0.24 |
0.6 |
1.7 |
0.035 |
0.035 |
… |
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
(MPa) |
(%) |
Min |
||
≤ 16 |
235 |
370-500 |
26 |
20 |
27J |
> 16-40 |
225 |
370-500 |
25 |
20 |
27J |
>40 |
215 |
370-500 |
24 |
20 |
27J |
The min impact energy is longitudinal energy |
GB/T700 Q235B
C % |
Si % |
Mn % |
P % |
S % |
N % |
0.22 |
0.35 |
1.4 |
0.045 |
0.045 |
… |
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
(MPa) |
(%) |
Min |
||
≤ 16 |
235 |
370-500 |
26 |
20 |
27J |
> 16-40 |
225 |
370-500 |
25 |
20 |
27J |
>40 |
215 |
370-500 |
24 |
20 |
27J |
The min impact energy is longitudinal energy |
GB/T700 Q235C
C % |
Si % |
Mn % |
P % |
S % |
N % |
≤0.17 |
≤0.35 |
≤1.4 |
≤0.040 |
≤0.040 |
… |
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
(MPa) |
(%) |
Min |
||
≤ 16 |
235 |
370-500 |
26 |
0 |
27J |
> 16-40 |
225 |
370-500 |
25 |
0 |
27J |
>40 |
215 |
370-500 |
24 |
0 |
27J |
The min impact energy is longitudinal energy |
GB/T700 Q235D
C % |
Si % |
Mn % |
P % |
S % |
N % |
0.17 |
0.35 |
1.4 |
0.035 |
0.035 |
… |
Thickness |
Yield Strength (Mpa) |
Tensile Strength |
Elongation |
Impact Energy |
|
(mm) |
(MPa) |
(%) |
Min |
||
≤ 16 |
235 |
370-500 |
26 |
0 |
27J |
> 16-40 |
225 |
370-500 |
25 |
0 |
27J |
>40 |
215 |
370-500 |
24 |
0 |
27J |
The min impact energy is longitudinal energy |