
PRODUCT CENTER
产品中心

地址:中国.天津市静海县大邱庄工业园科技大道4号
电话:+86-22-58686126
联系人:
销售部(孔经理)13821190996
邮 箱:info@frlsteel.com
1. 产品用途及特点
具有较好的综合性能及低温韧性,适用于桥梁、起重机械、车辆、建筑结构等。
2. 牌号和执行标准
产品牌号 :Q345A/B/C/D, Q420A/B/C/D, Q460C/D, Q500C/D, Q550C/D, Q620C/D, Q690 C/D
执行标准 :GB/T1591
3. 供货技术条件
产品规格
厚度: 1.2-12.7(mm)
宽度: 850-1650(mm)
交货状态
钢带以热轧状态交货
4. 化学成分
牌号 |
C |
Mn |
Si |
S |
P |
Als |
Q345A |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.010 |
Q345B |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.015 |
Q345C |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.015 |
Q345D |
≤1.80 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.020 |
≥0.015 |
Q390A |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.010 |
Q390B |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.015 |
Q390C |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.015 |
Q390D |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.020 |
≥0.015 |
Q420A |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.010 |
Q420B |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.015 |
Q420C |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.025 |
≥0.015 |
Q420D |
≤0.20 |
≤1.70 |
≤0.50 |
≤0.020 |
≤0.020 |
≥0.015 |
Q460C |
≤0.20 |
≤1.80 |
≤0.60 |
≤0.020 |
≤0.025 |
≥0.015 |
Q460D |
≤0.20 |
≤1.80 |
≤0.60 |
≤0.020 |
≤0.020 |
≥0.015 |
Q500C |
≤0.20 |
≤1.80 |
≤0.60 |
≤0.020 |
≤0.025 |
≥0.015 |
Q500D |
≤0.18 |
≤1.80 |
≤0.60 |
≤0.020 |
≤0.020 |
≥0.015 |
Q550C |
≤0.18 |
≤2.00 |
≤0.60 |
≤0.020 |
≤0.025 |
≥0.015 |
Q550D |
≤0.18 |
≤2.00 |
≤0.60 |
≤0.020 |
≤0.020 |
≥0.015 |
Q620C |
≤0.18 |
≤2.00 |
≤0.60 |
≤0.020 |
≤0.025 |
≥0.015 |
Q620D |
≤0.18 |
≤2.00 |
≤0.60 |
≤0.020 |
≤0.020 |
≥0.015 |
Q690C |
≤0.18 |
≤2.00 |
≤0.60 |
≤0.020 |
≤0.025 |
≥0.015 |
Q690D |
≤0.18 |
≤2.00 |
≤0.60 |
≤0.020 |
≤0.020 |
≥0.015 |
5. 力学性能
牌号 |
R eL /MPa |
R m /MPa |
A % |
弯曲试验180° |
冲击试验(V型缺口) |
|
温度℃ |
冲击吸收功/J |
|||||
Q345A |
≥345 |
470-630 |
≥20 |
2a |
- |
- |
Q345B |
≥345 |
470-630 |
≥20 |
2a |
+20 |
|
Q345C |
≥345 |
470-630 |
≥21 |
2a |
0 |
≥34 |
Q345D |
≥345 |
470-630 |
≥21 |
2a |
-20 |
|
Q390A |
≥390 |
490-650 |
≥20 |
2a |
- |
- |
Q390B |
≥390 |
490-650 |
≥20 |
2a |
+20 |
|
Q390C |
≥390 |
490-650 |
≥20 |
2a |
0 |
≥34 |
Q390D |
≥390 |
490-650 |
≥20 |
2a |
-20 |
|
Q420A |
≥420 |
520-680 |
≥19 |
2a |
- |
- |
Q420B |
≥420 |
520-680 |
≥19 |
2a |
+20 |
|
Q420C |
≥420 |
520-680 |
≥19 |
2a |
0 |
≥34 |
Q420D |
≥420 |
520-680 |
≥19 |
2a |
-20 |
|
Q460C |
≥460 |
550-720 |
≥17 |
2a |
0 |
|
Q460D |
≥460 |
550-720 |
≥17 |
2a |
-20 |
|
Q500C |
≥500 |
610-770 |
≥17 |
2a |
0 |
≥55 |
Q500D |
≥500 |
610-770 |
≥17 |
2a |
-20 |
≥47 |
Q550C |
≥550 |
670-830 |
≥16 |
2a |
0 |
≥55 |
Q550D |
≥550 |
670-830 |
≥16 |
2a |
-20 |
≥47 |
Q620C |
≥620 |
710-880 |
≥15 |
2a |
0 |
≥55 |
Q620D |
≥620 |
710-880 |
≥15 |
2a |
-20 |
≥47 |
Q690C |
≥690 |
770-940 |
≥14 |
2a |
0 |
≥55 |
Q690D |
≥690 |
770-940 |
≥14 |
2a |
-20 |
≥47 |
备注 |
1. a=试样厚度(mm), b=试样宽度(mm), d=弯心直径(mm)。 |
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