结构用热轧带钢
产品用途
结构用钢一般具有较高的强度与较好的成型性能，通常经过简单的加工后承受外部的载荷。适用于焊接、铆接、铰接等一般构件用。
该系列产品广泛应用于建筑结构、桥梁、船舶、铁路车辆、管道、大型机械等各个行业， 可按照国标、日标和欧标进行供货。
交货状态：热轧态、TMCP、酸洗等。
供货牌号及标准
国标与德标、欧标、日标牌号对应表
标准 | GB/T 912、GB/T 3274 GB/T 1591 |
EN10025-2 |
DIN 17100 | JIS G3101 JIS G3106 |
碳素结构钢 | Q195、Q21|Q345R-R-HIC| | S185 | St33 | SS330 |
Q23|Q345R-R-HIC| | - | - | SS400 | |
Q235B | S235JR | St37-2 RSt37-2 | SM400A | |
Q235C | S235J0 | St37-3U | SM400B | |
Q235D | S235J2 | - | SM400C | |
Q27|Q345R-R-HIC| | - | - | SS490 | |
Q275B | S275JR | St44-2 | - | |
Q275C | S275J0 | St44-3U | - | |
Q275D | S275J2 | - | - |
低合金高强度结构钢 | Q34|Q345R-R-HIC|/B/C/D/E | S355JR S355J0 S355J2 S355K2 |
St50-2 St52-3U |
SM490A SM490B SM490C |
Q355B/C/D | ||||
Q355MB/C/D/E/F | ||||
Q390A/B/C/D/E |
- |
- | SM490YA SM490YB | |
Q390MB/C/D/E | ||||
Q420A/B/C/D/E |
- |
- | SM520B SM520C | |
Q420MB/C/D/E | ||||
Q460C/D/E |
- |
- |
SM570 | |
Q460MC/D/E | ||||
Q500C/D/E |
- |
St60-2 |
- | |
Q500MC/D/E | ||||
Q550C/D/E |
- |
St70-2 |
- | |
Q550MC/D/E | ||||
Q620C/D/E |
- |
- |
- | |
Q620MC/D/E | ||||
Q690C/D/E |
- |
- |
- | |
Q690MC/D/E |
化学成分
牌号 | 化学成分（%） | ||||||||||
C | Si | Mn | P | S | Cu | Cr | Ni | Nb | V | Ti | |
Q195 | ≤0.12 | ≤0.30 | ≤0.50 | ≤0.035 | ≤0.040 | - | - | - | - | - | - |
Q21|Q345R-R-HIC| | ≤0.15 | ≤0.35 | ≤1.20 | ≤0.045 | ≤0.050 | - | - | - | - | - | - |
Q215B | ≤0.15 | ≤0.35 | ≤1.20 | ≤0.045 | ≤0.045 | - | - | - | - | - | - |
Q23|Q345R-R-HIC| | ≤0.22 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.050 | - | - | - | - | - | - |
Q235B | ≤0.20 | ≤0.35 | ≤1.40 | ≤0.045 | ≤0.045 | - | - | - | - | - | - |
Q235C | ≤0.17 | ≤0.35 | ≤1.40 | ≤0.040 | ≤0.040 | - | - | - | - | - | - |
Q235D | ≤0.17 | ≤0.35 | ≤1.40 | ≤0.035 | ≤0.035 | - | - | - | - | - | - |
Q27|Q345R-R-HIC| | ≤0.24 | ≤0.35 | ≤1.50 | ≤0.045 | ≤0.050 | - | - | - | - | - | - |
Q275B | ≤0.21 | ≤0.35 | ≤1.50 | ≤0.045 | ≤0.045 | - | - | - | - | - | - |
Q275C | ≤0.20 | ≤0.35 | ≤1.50 | ≤0.040 | ≤0.040 | - | - | - | - | - | - |
Q275D | ≤0.20 | ≤0.35 | ≤1.50 | ≤0.035 | ≤0.035 | - | - | - | - | - | - |
Q34|Q345R-R-HIC| | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.07 | ≤0.15 | ≤0.20 |
Q345B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.07 | ≤0.15 | ≤0.20 |
Q345C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.030 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.07 | ≤0.15 | ≤0.20 |
Q345D | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.025 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.07 | ≤0.15 | ≤0.20 |
Q345E | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.020 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.07 | ≤0.15 | ≤0.20 |
Q355B | ≤0.24 | ≤0.55 | ≤1.60 | ≤0.035 | ≤0.040 | ≤0.30 | ≤0.50 | ≤0.30 | - | - | - |
Q355C | ≤0.20 | ≤0.55 | ≤1.60 | ≤0.030 | ≤0.040 | ≤0.30 | ≤0.50 | ≤0.30 | - | - | - |
Q355D | ≤0.18 | ≤0.55 | ≤1.60 | ≤0.025 | ≤0.040 | ≤0.30 | ≤0.50 | ≤0.30 | - | - | - |
Q420A | ≤0.18 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.020 | ≤0.30 | ≤0.50 | ≤0.30 | ≤0.07 | ≤0.15 | ≤0.20 |
Q420B | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.035 | ≤0.035 | ≤0.30 | ≤0.80 | ≤0.30 | ≤0.07 | ≤0.20 | ≤0.20 |
Q420C | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.030 | ≤0.30 | ≤0.80 | ≤0.30 | ≤0.07 | ≤0.20 | ≤0.20 |
Q420D | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.030 | ≤0.025 | ≤0.30 | ≤0.80 | ≤0.30 | ≤0.07 | ≤0.20 | ≤0.20 |
Q420E | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.020 | ≤0.30 | ≤0.80 | ≤0.30 | ≤0.07 | ≤0.20 | ≤0.20 |
Q460C | ≤0.20 | ≤0.60 | ≤1.80 | ≤0.030 | ≤0.030 | ≤0.80 | ≤0.80 | ≤0.80 | ≤0.11 | ≤0.20 | ≤0.20 |
Q550D | ≤0.18 | ≤0.60 | ≤2.00 | ≤0.030 | ≤0.025 | ≤0.80 | ≤1.00 | ≤0.80 | ≤0.11 | ≤0.12 | ≤0.20 |
Q690D | ≤0.18 | ≤0.60 | ≤2.00 | ≤0.030 | ≤0.025 | ≤0.80 | ≤1.00 | ≤0.80 | ≤0.11 | ≤0.12 | ≤0.20 |
力学性能
牌 号 | 拉伸试验 |
180°冷弯试验B＝2a |
V 型冲击试验 AK(J) | ||
屈服强度Re(MPa) |
抗拉强度Rm(MPa) | 伸长率 A/% ≥ | |||
Q195 | ≥195 | 315-430 | ≥33 | d＝0.5a | - |
Q21|Q345R-R-HIC| | ≥215 | 335-450 | ≥31 | d＝1.0a | - |
Q215B | ≥215 | 335-450 | ≥31 | d＝1.0a | ≥27(20℃) |
Q23|Q345R-R-HIC| | ≥235 | 370-500 | ≥26 | d＝1.5a | - |
Q235B | ≥235 | 370-500 | ≥26 | d＝1.5a | ≥27(20℃) |
Q235C | ≥235 | 370-500 | ≥26 | d＝1.5a | ≥27(0℃) |
Q235D | ≥235 | 370-500 | ≥26 | d＝1.5a | ≥27(-20℃) |
Q27|Q345R-R-HIC| | ≥275 | 410-540 | ≥22 | d＝2.0a | - |
Q275B | ≥275 | 410-540 | ≥22 | d＝2.0a | ≥27(20℃) |
Q275C | ≥275 | 410-540 | ≥22 | d＝2.0a | ≥27(0℃) |
Q275D | ≥275 | 410-540 | ≥22 | d＝2.0a | ≥27(-20℃) |
Q34|Q345R-R-HIC| | ≥345 | 470-630 | ≥20 | d＝2.0a | - |
Q345B | ≥345 | 470-630 | ≥20 | d＝2.0a | ≥34（20℃） |
Q345C | ≥345 | 470-630 | ≥21 | d＝2.0a | ≥34（0℃） |
Q345D | ≥345 | 470-630 | ≥21 | d＝2.0a | ≥34（-20℃） |
Q345E | ≥345 | 470-630 | ≥21 | d＝2.0a | ≥34（-40℃） |
Q355B | ≥355 | 470-630 | ≥22 | d＝2.0a | ≥34（0℃） |
Q355C | ≥355 | 470-630 | ≥22 | d＝2.0a | ≥34（-20℃） |
Q355D | ≥355 | 470-630 | ≥22 | d＝2.0a | ≥34（-40℃） |
Q420A | ≥420 | 520-680 | ≥19 | d＝2.0a | - |
Q420B | ≥420 | 520-680 | ≥19 | d＝2.0a | ≥34（20℃） |
Q420C | ≥420 | 520-680 | ≥19 | d＝2.0a | ≥34（0℃） |
Q420D | ≥420 | 520-680 | ≥19 | d＝2.0a | ≥34（-20℃） |
Q420E | ≥420 | 520-680 | ≥19 | d＝2.0a | ≥34（-40℃） |
Q460C | ≥460 | 550-720 | ≥17 | d＝2.0a | ≥34（0℃） |
Q550D | ≥550 | 670-830 | ≥16 | d＝2.0a | ≥47（-20℃） |
Q690D | ≥690 | 770-940 | ≥14 | d＝2.0a | ≥47（-20℃） |
电话直呼
在线客服
在线留言
发送邮件
企业位置
- 联系我们：
- 13837130337
- 18937583775
- 客户经理
-
-
- 还可输入字符250（限制字符250）