全网供应Q345合金结构钢 Q345圆钢定尺下料 Q345少量打样
宁波承泽金属材料有限公司
批发:1215 12L14 Y40Mn ASTM1144 ASTM1117 Y20 Y15 16Mn-65Mn 10#-60#钢 15CrMo 20CrMo 35CrMo 42CrMo 30CrMnSi Cr12 GCr15 D2 DC53 P20等各类圆钢、钢棒、冷拉光圆、锻打钢棒、六角钢........
牌号 |
C |
Si |
Mn |
P |
S |
V |
Nb |
Al |
Ti |
Cr |
Ni |
Cu |
Q345A |
≤0.20 |
≤0.50 |
≤1.70 |
≤0.035 |
≤0.035 |
≤0.15 |
≤0.07 |
- |
≤0.20 |
≤0.30 |
≤0.50 |
≤0.30 |
Q345B |
≤0.20 |
≤0.50 |
≤1.70 |
≤0.035 |
0.035 |
≤0.15 |
≤0.07 |
- |
≤0.20 |
≤0.30 |
≤0.50 |
≤0.30 |
Q345C |
≤0.20 |
≤0.50 |
≤1.70 |
≤0.030 |
≤0.030 |
≤0.15 |
≤0.07 |
≥0.015 |
≤0.20 |
≤0.30 |
≤0.50 |
≤0.30 |
Q345D |
0.18 |
≤0.50 |
≤1.70 |
≤0.030 |
≤0.025 |
≤0.15 |
≤0.07 |
≥0.015 |
≤0.20 |
≤0.30 |
≤0.50 |
≤0.30 |
Q345E |
≤0.18 |
≤0.50 |
≤1.70 |
≤0.025 |
≤0.020 |
≤0.15 |
≤0.07 |
≥0.015 |
≤0.20 |
≤0.30 |
≤0.50 |
≤0.30 |
镍(Ni)、铜(Cu)等的含量一般控制在Cr≤0.25%、Ni≤0.30%、Cu≤0.25%。有的牌号锰(Mn)含量达到1.40%,称为锰钢
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全网供应Q345合金结构钢 Q345圆钢定尺下料 Q345少量打样