汽车结构用热轧钢板和钢带
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累计评价0 - ：汽车结构用热轧钢板和钢带
- ：热轧态、TMCP、酸洗
- ：山钢，日钢
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主要用途及类型
该系列产品涵盖大梁用钢、车轮用钢、车轴用钢、车桥用钢和其他结构件用钢等，具有良好的强韧性和折弯性能，焊接性能优良、组织均匀，很好地满足了商用车载重多、疲劳强度高的要求。
为满足汽车对安全、减重节能和环保的要求，目前设计开发多种满足各种特定性能要求的高强钢种，如：
1、屈服强度 550～700MPa 级的具有良好成形性能和焊接性能的低合金高强度钢，可用于汽车大梁、车厢、传动轴管和其它汽车结构
2、抗拉强度 450～650MPa 级车轮用钢；
3、高强度桥壳用钢；
4、高强度传动轴用钢。
交货状态：热轧态、TMCP、酸洗等。
供货牌号、标准及力学性能
类型 |
标准及牌号 | 拉伸试验（纵向） |
180°弯曲试验 | |||||
屈服强度 ReL(MPa) | 抗拉强度 Rm(MPa) | 延伸率 A (%) | ||||||
大梁用钢 | GB/T 3273 | EN 10149-2 | ||||||
370L | S315MC | ≥245 | 370~480 | ≥28 | d=0.5a | |||
420L | S355MC | ≥305 | 420~540 | ≥26 | d=0.5a | |||
440L | S420MC | ≥330 | 440~570 | ≥26 | d=0.5a | |||
510L | S460MC | ≥355 | 510~650 | ≥24 | d=1.0a | |||
550L | S500MC | ≥400 | 550~700 | ≥23 | d=1.0a | |||
600L | S550MC | ≥500 | 600~760 | ≥18 | d=1.5a | |||
650L | S600MC | ≥550 | 650~820 | ≥16 | d=1.5a | |||
700L | S650MC | ≥600 | 700~800 | ≥14 | d=2.0a | |||
750L | S700MC | ≥650 | 750~950 | ≥13 | d=2.0a | |||
车轮用钢 | YB/T 4151 | JISG3113 | ||||||
330CL | - | ≥225 | 330~430 | ≥33 | d=0.5a | |||
380CL | SAPH370 | ≥235 | 380~480 | ≥28 | d=1.0a | |||
420CL | - | ≥275 | 420~520 | ≥27 | d=1.0a | |||
440CL | SAPH440 | ≥290 | 440~550 | ≥26 | d=1.0a | |||
490CL | - | ≥325 | 490~600 | ≥24 | d=2.0a | |||
540CL | - | ≥355 | 540~660 | ≥22 | d=2.0a | |||
590CL | - | ≥420 | 590~710 | ≥20 | d=2.0a | |||
650CL | - | ≥500 | 650~770 | ≥18 | d=2.0a | |||
传动轴用钢 | 技术协议 | |||||||
440QZ | ≥315 | 440~540 | ≥24 | d=1.0a | ||||
480QZ | ≥355 | 480~580 | ≥21 | d=1.0a | ||||
700QZ | ≥600 | 700~800 | ≥16 | d=1.0a | ||||
载重车后桥用钢 | 技术协议 | |||||||
440QK | ≥295 | ≥440 | ≥34 | |||||
汽车结构用钢 | JISG3113 | ＜8.0 | ≥8.0 | ＜4.0 | ≥4.0 | a | ||
SAPH310 | ≥185 | ≥175 | ≥310 | ≥36 | ≥40 | d=2.0a | ||
SAPH370 | ≥225 | ≥215 | ≥370 | ≥35 | ≥37 | d=2.0a | ||
SAPH400 | ≥255 | ≥235 | ≥400 | ≥34 | ≥36 | d=2.0a | ||
SAPH440 | ≥305 | ≥275 | ≥440 | ≥32 | ≥34 | d=3.0a | ||
化学成分
类型 |
牌号 | 化学成分（
） | ||||||||
C | Si | Mn | P | S | Als | Nb | V | Ti | ||
大梁钢 | 370L | ≤0.12 | ≤0.50 | ≤0.60 | ≤0.025 | ≤0.015 | ≥0.010 |
Nb+V+T1≤0.22 | ||
420L | ≤0.12 | ≤0.50 | ≤1.50 | ≤0.025 | ≤0.015 | ≥0.010 | ||||
440L | ≤0.18 | ≤0.50 | ≤1.50 | ≤0.025 | ≤0.015 | ≥0.010 | ||||
510L | ≤0.20 | ≤0.50 | ≤1.60 | ≤0.025 | ≤0.015 | ≥0.015 | ||||
550L | ≤0.20 | ≤0.50 | ≤1.70 | ≤0.025 | ≤0.015 | ≥0.015 | ||||
600L | ≤0.12 | ≤0.50 | ≤1.80 | ≤0.025 | ≤0.015 | ≥0.015 | ||||
650L | ≤0.12 | ≤0.50 | ≤1.90 | ≤0.025 | ≤0.015 | ≥0.015 | ||||
700L | ≤0.12 | ≤0.50 | ≤2.00 | ≤0.025 | ≤0.015 | ≥0.015 | ||||
750L | ≤0.12 | ≤0.60 | ≤2.10 | ≤0.025 | ≤0.015 | ≥0.015 | ||||
车轮钢 | 330CL | ≤0.10 | ≤0.05 | ≤0.50 | ≤0.030 | ≤0.025 | ≥0.015 | - | - | - |
380CL | ≤0.16 | ≤0.30 | ≤1.20 | ≤0.030 | ≤0.025 | ≥0.015 | - | - | - | |
400CL | ≤0.16 | ≤0.30 | ≤1.50 | ≤0.030 | ≤0.025 | ≥0.015 | - | - | - | |
420CL | ≤0.16 | ≤0.30 | ≤1.50 | ≤0.030 | ≤0.025 | ≥0.015 | - | - | - | |
440CL | ≤0.16 | ≤0.35 | ≤1.50 | ≤0.030 | ≤0.025 | ≥0.015 | - | - | - | |
490CL | ≤0.16 | ≤0.55 | ≤1.70 | ≤0.025 | ≤0.015 | ≥0.015 | - | - | - | |
540CL | ≤0.16 | ≤0.55 | ≤1.70 | ≤0.025 | ≤0.015 | ≥0.015 | - | - | - | |
590CL | ≤0.16 | ≤0.55 | ≤1.70 | ≤0.025 | ≤0.015 | ≥0.015 | - | - | - | |
传动轴钢 | 440QZ | ≤0.12 | ≤0.50 | ≤1.50 | ≤0.025 | ≤0.020 | ≥0.010 |
适量 | ||
480QZ | ≤0.12 | ≤0.50 | ≤1.80 | ≤0.025 | ≤0.020 | ≥0.010 | ||||
700QZ | ≤0.12 | ≤0.50 | ≤2.00 | ≤0.025 | ≤0.020 | ≥0.010 | ||||
载重车后桥用钢 | 440QZ | ≤0.21 | ≤0.30 | ≤1.80 | ≤0.025 | ≤0.020 | ≥0.010 | 适量 | ||
汽车结构钢 | SAPH310 | ≤0.10 | ≤0.30 | ≤0.50 | ≤0.025 | ≤0.020 | ≥0.010 | - | - | - |
SAPH370 | ≤0.21 | ≤0.30 | ≤0.70 | ≤0.025 | ≤0.020 | ≥0.010 | - | - | - | |
SAPH400 | ≤0.21 | ≤0.30 | ≤1.20 | ≤0.025 | ≤0.020 | ≥0.010 | - | - | - | |
SAPH440 | ≤0.21 | ≤0.30 | ≤1.50 | ≤0.025 | ≤0.020 | ≥0.010 | - | - | - | |
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