涟钢热轧汽车用钢产品手册 - 规格与力学性能详解
头部
涟钢热轧汽车用钢产品手册
Hot-rolled Automotive Steel Product Manual of LY Steel
导航
主体内容
汽车车厢用钢
汽车车厢用钢 / Automotive Compartment Steel
涟钢是国内少数可稳定生产供应极薄宽规格汽车车厢用钢的企业之一，产品为商用车轻量化的优选材料，可稳定提供1.2×1250mm、2.0×1610mm、3.0×1800mm的极限规格，其中3×1800mm规格的LG750XT板形性能优异。
As one of the few enterprises in China that can stably produce and supply extremely thin and wide steel for automotive compartment, LY Steel can stably supply the extreme specifications of 1.2 × 1250mm, 2.0 × 1610mm and 3.0 × 1800mm. It is a preferred lightweight material for commercial vehicles, with excellent profile performance of LG750XT in 3×1800mm specification.
力学性能 / Mechanical Property
| 牌号 Steel grades | 拉伸方向 Tensile direction | 屈服强度 Yield strength (MPa) | 抗拉强度 Tensile strength (MPa) | 断后伸长率 A 5mm (%) Elongation after fracture | 180°冷弯 Cold bending (b=35mm) | 可供规格 Available specification (mm) |
|---|---|---|---|---|---|---|
| LG600XT | 横向 Transverse | ≥550 | ≥600 | ≥17 | d=1.5a | 1.2~14.0×1000~2000 |
| LG700XL | 横向 Transverse | ≥620 | ≥700 | ≥17 | d=1.5a | 1.5~16.0×1000~2000 |
| LG750XT | 横向 Transverse | ≥700 | ≥750 | ≥15 | d=2a | 2.0~14.0×1000~2000 |
| LG850XT | 横向 Transverse | ≥800 | ≥850 | ≥15 | d=2a | 2.0~8.0×1000~2000 |
| LG1000XT | 横向 Transverse | ≥950 | ≥1000 | ≥12 | d=4a | 2.0~8.0×1000~2000 |
注：1、a为试样厚度；b为冷弯试样的宽度；d为弯心直径。
Note: 1. a is sample thickness, b is width of the cold bending sample, d is the bending diameter.
汽车车轮用钢
汽车车轮用钢 / Automotive Wheel Steel
汽车车轮是汽车重要零部件，制造变形复杂，需同时满足技术要求与大批量流水生产工艺要求。涟钢通过洁净钢冶炼技术、钙处理专利技术和控轧控冷技术（TMCP），确保产品组织与性能，具备高强度、高成形性能，以及良好的疲劳性能和焊接性能。
Automotive wheel is one of the important auto parts with complex deformation during manufacturing, which needs to meet both technical requirements and mass production process requirements. LY Steel guarantees product microstructure and performance with high strength, high formability, good fatigue performance and welding performance through clean steel metallurgy, Ca treatment patent technology and TMCP technology.
交货标准：Q/OHAC810《汽车车轮结构用钢板和钢带》
Delivery Standard: Q/OHAC810 Sheet and Strip for Automotive Wheel Structure
机械性能 / Mechanical Property
| 牌号 Steel grades | 抗拉强度 Tensile strength (MPa) | 下屈服强度 Yield strength (MPa) | 断后伸长率 A 80mm (%)（h<3.0mm） Elongation | 断后伸长率 A%（h≥3.0mm） Elongation | 180°冷弯 Cold bending (b=35mm) |
|---|---|---|---|---|---|
| LG330CL/RCL330 | 330~430 | ≥225 | ≥27 | ≥33 | d=0.5a |
| LG380CL/RCL380 | 380~480 | ≥235 | ≥23 | ≥28 | d=0.5a |
| LG420CL/RCL420 | 420~520 | ≥275 | ≥23 | ≥28 | d=1a |
| LG490CL/RCL490 | 490~610 | ≥325 | ≥20 | ≥24 | d=a |
| LG510CL/RCL510 | 510~630 | ≥355 | ≥20 | ≥24 | d=1.5a |
| LG540CL/RCL540 | 530~650 | ≥355 | ≥18 | ≥22 | d=1.5a |
| LG590CL/RCL590 | 590~710 | ≥420 | ≥17 | ≥20 | d=2.0a |
| LG650CL | 650~770 | ≥500 | ≥15 | ≥18 | d=2.0a |
注：1、a为试样厚度；b为冷弯试样的宽度；d为弯心直径。2、拉伸试样的方向为横向，即GB/T 228中P10试样；冷弯试样方向为横向，即GB/T 232翻板式检测。
Remark: 1. a is thickness of the sample, b is width of the cold bending sample, d is bending diameter. 2. The direction of the tensile sample is transverse, i.e. P10 sample in GB/T 228. The direction of the cold bending sample is transverse, i.e. GB/T 232 flap type test.
汽车车桥用钢
汽车车桥用钢 / Automotive Axle Housing Steel
汽车车桥用钢系列专用于汽车后桥壳体，客户要求产品具备较高的强度、良好的成型性能及疲劳性能，涟钢产品可满足上述核心需求。
Steel for axle housing is dedicatedly used in automobile rear axle housing. Customers require it to have high strength, good formability and fatigue performance, and LY Steel's products can meet the above core needs.
交货标准：Q/OHAC814-2017《汽车桥壳结构用钢板和钢带》
Delivery Standard: Q/OHAC814-2017 Structural Steel Sheet and Strip for Automobile Axle Housing
主要牌号及力学性能 / Main Grades and Mechanical Property
| 钢种 Steel grade | 可供品规 Available specification (mm) | 屈服强度 Yield strength (MPa) | 抗拉强度 Tensile strength (MPa) | 断后伸长率 A80mm (%) Elongation after fracture | 180°冷弯试验 180°Cold bending (b=35mm) | 纵向冲击功（-20℃/J） Longitudinal impact energy |
|---|---|---|---|---|---|---|
| LG510QK | 4.0~18.5×1000~2050 | ≥355 | 500~630 | ≥24 | d=1.5a | ≥34 |
| LG600QK | ≥460 | 590~720 | ≥21 | d=1.5a | ≥34 | |
| LG650QK | ≥500 | 640~820 | ≥18 | d=2.0a | ≥34 |
注：1、a为试样厚度；b为冷弯试样的宽度；d为弯心直径。2、拉伸试样的方向为横向，即GB/T 228中P10试样；冷弯试样方向为横向，即GB/T 232翻板式检测；冲击方向为纵向。
Remark: 1. a is thickness of the sample, b is width of the cold bending sample, d is bending diameter. 2. The direction of the tensile sample is transverse, i.e. P10 sample in GB/T 228. The direction of the cold bending sample is transverse, i.e. GB/T 232 flap type test. The direction of impact is longitudinal.
接单产品尺寸规范 / Product Specification for Orders
| 厚度 Thickness (mm) | 宽度 Width (mm) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| <1000 | ≥1000~1100 | ≥1100~1200 | ≥1200~1300 | ≥1300~1400 | ≥1400~1500 | ≥1500~1550 | ≥1550~1600 | ≥1600~1800 | ≥1800~2000 | ≥2000~2080 | |
| <1.5 | - | - | - | - | - | - | - | - | - | - | - |
| ≥1.5~2.0 | - | - | - | - | - | - | - | - | - | - | - |
| >2.0~2.5 | - | - | - | - | - | - | - | - | - | - | - |
| >2.5~3.0 | - | - | - | - | - | - | - | - | - | - | - |
| >3.0~5.5 | - | - | - | - | - | - | - | - | - | - | - |
| >5.5~8.0 | - | - | - | - | - | - | - | - | - | - | - |
| >8.0~10.5 | - | - | - | - | - | - | - | - | - | - | - |
| >10.5~12.7 | - | - | - | - | - | - | - | - | - | - | - |
| >12.7~14.0 | - | - | - | - | - | - | - | - | - | - | - |
| >14.0~16.0 | - | - | - | - | - | - | - | - | - | - | - |
| >16.0~20.5 | - | - | - | - | - | - | - | - | - | - | - |
注明：绿色区域为正常接单区域；黄色区域为接单时需要与技术中心沟通区域；红色区域为未生产过的规格，需要评审确定过渡材才能接单。
Remark: Green area indicates common order receiving zone; yellow area indicates the need to contact the Technical Center when receiving orders; red area indicates specifications that have not been produced before, and orders can be accepted only after reviewing and defining transitional products.
先进汽车结构用钢
先进汽车结构用钢 / Advanced Automotive Structural Steel
双相钢
双相钢 / Dual Phase Steel
涟钢双相钢产品以贝氏体双相钢为核心，具备优异的力学性能与加工性能，适配先进汽车结构对材料的高要求。
LY Steel's dual-phase steel products focus on bainite dual-phase steel, with excellent mechanical properties and processing properties, adapting to the high requirements of advanced automotive structures for materials.
贝氏体双相钢的力学性能 / Mechanical Property of Bainite Dual Phase Steel
| 牌号 Steel grades | 可供厚度 Available thickness (mm) | 屈服强度 Yield strength (MPa) | 抗拉强度 Tensile strength (MPa) | 断后伸长率 A 80mm (%) Elongation after fracture | 扩孔率 (%) Hole expansion rate | 180°冷弯 Cold bending (b=35mm) |
|---|---|---|---|---|---|---|
| FB450 | 1.5~6.0 | ≥300 | 450~530 | ≥24 | ≥80 | d=0.5a |
| FB590 | 1.5~6.0 | 440~620 | ≥580 | ≥14 | ≥75 | d=1.0a |
| FB780 | 1.5~6.0 | 600~800 | ≥780 | ≥12 | ≥55 | d=2.0a |
注：1、a为试样厚度；b为冷弯试样的宽度；d为弯心直径。2、拉伸试样的方向为纵向，即GB/T 228中P14试样；冷弯试样方向为横向，即GB/T 232翻板式检测。
Remark: 1. a is test thickness, b is width of cold bending test, d is bending diameter. 2. The direction of stretching sample is longitudinal, i.e. P14 sample in GB/T 228. The direction of cold bending sample is transverse, i.e. GB/T 232 flap type test.
马氏体双相钢
马氏体双相钢 / Martensite Dual Phase Steel
| 牌号 Steel grade | 可供厚度 Available thickness (mm) | 屈服强度 Yield strength (MPa) | 抗拉强度 Tensile strength (MPa) | 断后伸长率 A 80mm (%) Elongation after fracture | n值 n value | 180°冷弯 Cold bending (b=35mm) |
|---|---|---|---|---|---|---|
| DP600 | 1.5~6.0 | 330~470 | ≥580 | ≥19 | ≥0.14 | d=1.0a |
| DP780 | 1.5~6.0 | 450~610 | ≥780 | ≥14 | ≥0.11 | d=2.0a |
注：1、a为试样厚度；b为冷弯试样的宽度；d为弯心直径。2、拉伸试样的方向为纵向，即GB/T 228中P14试样；冷弯试样方向为横向，即GB/T 232翻板式检测。
Remark: 1. a refers to sample thickness, b refers to width of cold bending sample, d refers to bending diameter. 2. The direction of stretching sample is longitudinal, i.e. P14 sample in GB/T 228. The direction of cold bending sample is transverse, i.e. GB/T 232 flap type test.
车辆管类结构用钢
车辆管类结构用钢 / Pipe Structure Steel For Automotive
涟钢部分结构用钢用于轴管类结构制作，主要应用于减震器套管、摩托车支架管等场景，产品性能稳定，适配管类零部件加工需求。
Part of LY Steel's structural steel is used for the production of axle tube structures, mainly applied in scenarios such as damper casing pipes and motorcycle brackets, with stable product performance to meet the processing needs of pipe components.
主要应用产品：减震器套管（Damper casing pipe）、摩托车支架管（Motorcycle bracket）
牌号及力学性能 / Grade and Physical Property
| 牌号 Steel grade | 拉伸方向 Stretching direction | 屈服强度 Yield strength (MPa) | 抗拉强度 Tensile strength (MPa) | 延长率 A (%) Elongation |
|---|---|---|---|---|
| ST37-2 | 横向 Transverse | ≥235 | 370~510 | ≥26 |
| ST44-2 | 横向 Transverse | ≥275 | 430~580 | ≥22 |
| ST52-3 | 横向 Transverse | ≥355 | 520~680 | ≥20 |
高强冷弯型钢
高强冷弯型钢 / High-strength Cold-formed Steel
涟钢高强冷弯型钢采用第二相粒子析出强化为主的钢系，在具备较高强度的同时保持较高延伸率，主要应用于新能源汽车骨架制作，可加工为方管、异截面管等，且具备良好的焊接性能与耐蚀性能。
LY Steel's high-strength cold-formed steel adopts a steel system mainly based on precipitation strengthening of second-phase particles, maintaining high elongation while having high strength. It is mainly used in the production of new energy vehicle frameworks, can be processed into square tubes and special-shaped section tubes, and has good welding performance and corrosion resistance.
| 钢种 Grade | 可供品规 Available specification (mm) | 屈服强度 Yield strength (MPa) | 抗拉强度 Tensile strength (MPa) | 延伸率 A (%) Elongation | 180°冷弯试验 Cold bending test (b=35mm) |
|---|---|---|---|---|---|
| QSTE700TM-LW | 1.5~4.0×900~1500 | ≥700 | ≥750 | ≥19 | d=2a |
注：1、a为试样厚度；b为冷弯试样的宽度；d为弯心直径。2、拉伸试样的方向为纵向，即GB/T 228中P10试样；冷弯试样方向为横向，即GB/T 232翻板式检测。
Remark: 1. a is test thickness, b is width of cold bending test, d is bending diameter. 2. The direction of tensile sample is transverse, i.e. P10 sample in GB/T 228. The direction of cold bending sample is transverse, i.e. GB/T 232 flap type test.
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