商铺名称：宁波轶顺金属材料科技有限公司
联系人：吴先生（先生）
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Q390圆棒Q390铁棒
Q390是一种低合金高强度结构钢。
化学成分：
|
等级 |
C |
Mn |
Si |
P |
S |
V |
Nb |
Ti |
Al |
Cr |
Ni |
|
A |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.045 |
≤0.045 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
- |
≤0.30 |
≤0.70 |
|
B |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.040 |
≤0.040 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
- |
≤0.30 |
≤0.70 |
|
C |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.035 |
≤0.035 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
|
D |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.030 |
≤0.030 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
|
E |
≤0.20 |
1.00~1.60 |
≤0.55 |
≤0.025 |
≤0.025 |
0.02~0.20 |
0.015~0.060 |
0.02~0.20 |
≥0.015 |
≤0.30 |
≤0.70 |
力学性能：
【屈服点】(σs/MPa)
|
厚度(直径、边长)/mm |
≤16 |
>16~35 |
>35~50 |
>50~100 |
|
σs/MPa |
≥390 |
≥370 |
≥350 |
≥330 |
【冲击吸收功】(Akv(纵向)/J)
|
等级￤温度 |
+20℃ |
0℃ |
-20℃ |
-40℃ |
|
A |
|
|
|
|
|
B |
≥34 |
|
|
|
|
C |
|
≥34 |
|
|
|
D |
|
|
≥34 |
|
|
E |
|
|
|
≥27 |
