China Automotive Structural Steel Suppliers
Automotive structural steel is a high-performance steel designed specifically for the automotive industry. Designed to meet the demanding requirements of modern automotive manufacturing, this steel has excellent strength, durability and formability, making it an ideal choice for critical structural components in vehicles. Whether it’s lightweight design, crash safety or fuel efficiency, our automotive structural steel provides unmatched performance and reliability.
Ready to purchase high-quality structural steel to enhance the performance of your vehicle? Contact our sales team today to request a quote or learn more about our products.
Automotive Structural Steel Price, please free to contact us.
Automotive Structural Steel
Automotive structural steel is mainly used in parts or security parts in passenger cars and commercial cars, normally customers require it to be pickled. The key process for this kind of material is drawing, thus the material is required to be with high ductility, high precision of thickness, and good shape.
The delivery standard of the common structural steel is Q/OHAC 807-2016 common automotive structural steel sheet and strip. The delivery standard of the high-strength structural steel is Q/OHAC 811-2016 high-strength automotive sheet and strip.
Huaxiao is a leading supplier of engineered automotive steel for power transmission applications, selling customers for light vehicles, medium trucks, and heavy-duty truck applications. Every day, millions of motorists use our high-performance automotive steels in the engine, transmission, and driveline components of their vehicles. You’ll also find our consistent and reliable steels in automotive applications such as gears, crankshafts, bearings, hubs, axles, constant velocity joints, shafts, and sleeves. In addition, through our value-added supply chain, we are a leading producer of precision cut tubing and precision machined components and finished parts.
Automotive Structural Steel Grade and strength
Common structural steel
| Grade | Tensile strength, Mpa | Elongation，% | 180° Bending property | |||||
| L0=50mm | Longitudinal | |||||||
| <1.6mm | 1.6-<2.0 | 2.0-<2.5 | 2.5-<3.2 | ≥3.2 | <3.2 | ≥3.2 | ||
| SPHC-PO | ≥270 | ≥27 | ≥29 | ≥29 | ≥29 | ≥31 | d=0a | d=1a |
| SPHD-PO | ≥270 | ≥30 | ≥32 | ≥33 | ≥35 | ≥37 | – | – |
| SPHE-PO | ≥270 | ≥32 | ≥34 | ≥35 | ≥37 | ≥39 | – | – |
| SPHF-PO | ≥270 | ≥37 | ≥38 | ≥39 | ≥39 | ≥40 | – | – |
| Note: The product should be used as soon as possible due to its aging effect. | ||||||||
a）Longitudinal sample should be used for tensile test, i.e P14 sample in GB/T 228.1; b)the property guarantee period is 6 months. | ||||||||
We offer a wide range of automotive structural steel grades and specifications to meet the needs of manufacturers and suppliers, with flexible pricing and stock levels to ensure seamless integration into your production process.
High strength structural steel
| Strength grading (yield strength, Mpa) | Q/OHAC 811 | SEW092 | DIN EN 10149.2 |
| Main grades | Main grades | Main grades | |
| 355 | QSTE340TM/S355MC | QSTE340TM | S355MC |
| 380 | QSTE380TM | QSTE380TM | |
| 420 | QSTE420TM/S420MC | QSTE420TM | S420MC |
| 460 | QSTE460TM/S460MC | QSTE460TM | S460MC |
| 500 | QSTE500TM/S500MC | QSTE500TM | S500MC |
| 550 | QSTE550TM/S550MC | QSTE550TM | S550MC |
| 600 | QSTE600TM/S600MC | QSTE600TM | S600MC |
| 650 | QSTE650TM/S650MC | QSTE650TM | S650MC |
| 700 | QSTE700TM/S700MC | QSTE700TM | S700MC |
Mechanical property
| Yield Strength classification, Mpa | Yield strength | Tensile strength | Elongation after fracture | Cold bending test | |
Rel, MPa | Rm, MPa | A50% (h＜3.0mm) | A% (h≥3.0mm) | 180° ,b=35mm | |
| QSTE340TM | ≥340 | 420～540 | ≥21 | ≥25 | d=0 .5a， Qualified |
| S355MC | ≥355 | 430～550 | ≥19 | ≥23 | d=0 .5a， Qualified |
| QSTE380TM | ≥380 | 450～590 | ≥20 | ≥23 | d=0 .5a， Qualified |
| QSTE420TM/S420MC | ≥420 | 480～620 | ≥18 | ≥21 | d=0 .5a，Qualified |
| QSTE460TM/S460MC | ≥460 | 520～670 | ≥15 | ≥19 | d=a，Qualified |
| QSTE500TM/S500MC | ≥500 | 550～700 | ≥13 | ≥17 | d=a， Qualified |
| QSTE550TM/S550MC | ≥550 | 600～760 | ≥11 | ≥15 | d=1.5a，Qualified |
| QSTE600TM/S600MC | ≥600 | 650～820 | ≥11 | ≥13 | d=1.5a，Qualified |
| QSTE650TM/S650MC | ≥650 | 700～880 | ≥10 | ≥11 | d=2a， Qualified |
| QSTE700TM/S700MC | ≥700 | 750～950 | ≥10 | ≥11 | d=2a， Qualified |
Remark: 1）a is refer to the thickness of the sample, b is refer to the width of the cold bending sample, and d is is referring to the bending diameter. 2）The direction of the tensile test sample is longitudinal, i.e. P14 sample in GB/T 228.1 when h ＜3.0 mm. P10 sample in GB/T 228.1 when h ≥3.0 mm. The direction of cold bending is transverse, i.e. GB/T 232 flap type test. 3）The yield strength can be reduced by 20MPa for a thickness of more than 8mm. | |||||
Automotive Structural Steel Applications
Automotive Structural Steel is widely used in the production of:
Chassis and frame components
Body-in-white (BIW) structures
Crash management systems (bumpers, side impact beams)
Suspension and steering components
Reinforcements for doors, roofs, and pillars
Suppliers and manufacturers can leverage our steel for a wide range of automotive applications, with customizable options and competitive prices to suit your specific needs.
Automotive Structural Steel Features
High Strength-to-Weight Ratio: Enables lightweight vehicle designs without compromising safety or performance.
Superior Formability: Allows for complex shapes and designs, supporting innovative automotive engineering.
Excellent Crash Resistance: Enhances passenger safety by absorbing impact energy during collisions.
Corrosion Resistance: Treated with advanced coatings to ensure long-term durability in harsh environments.
Eco-Friendly: Supports sustainable manufacturing by reducing vehicle weight and improving fuel efficiency.
Manufacturers and suppliers can rely on our Automotive Structural Steel for consistent quality and performance, with pricing tailored to bulk orders and stock availability for fast delivery.
Get Automotive Structural Steel Prices
For manufacturers and suppliers, our automotive structural steel offers cost-effective solutions with ample inventory, fast delivery and more.
