Automotive Compartment Steel
Automotive steel refers to specialized steel used in the manufacture of automotive cabins, such as engine compartments, passenger compartments, trunks and other structural or functional parts. This steel is engineered to provide strength, durability, safety and energy efficiency to ensure optimal performance and occupant protection in modern vehicles.
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Automotive Compartment Steel
Grade and Application
Huaxiao Metal’s cold-rolled high-strength steel for carriage covers products in different strength levels ranging from 350MPa to 950Mpa. These products are widely used in various industries, such as shipping containers, lateral plates of truck carriages, van carriages, and high-strength welded pipes.
| Steel grades | Category | Application |
| LG350CX | cold rolled surface | Sidepanelsandvanbodyofafreightcar |
| LG550CX | cold rolled surface | Sidepanelsandvanbodyofafreightcar |
| LG700CX | cold rolled surface | Sidepanelsandvanbodyofafreightcar |
| LG1000CX | cold rolled surface | High strength welded pipe |
| LG700NQ | cold rolled surface | The body of a shipping container or van |
| LG800NQ | cold rolled surface | The body of a shipping container or van |
Product Dimension
Nominal thickness ：
0.7~2.5mm；nominal width：820~1550mm;
Physical Property
As delivery physical property
| Grade | Tensile test a、b | ||
| Yield strength, MPa | Tensile strength, MPa | Elongation after fracture % A50 | |
| LG350CX | ≥350 | ≥400 | ≥10 |
| LG550CX | ≥550 | ≥600 | ≥6 |
| LG700CX | ≥700 | ≥750 | ≥5 |
| LG1000CX | ≥950 | ≥1000 | ≥5 |
| LG700NQ | ≥600 | ≥700 | ≥5 |
| LG800NQ | ≥700 | ≥800 | ≥5 |
| RP0.2 is applied in the case of no obvious yielding, otherwise, ReL is applied | |||
| transverse sample should be used for tensile test:25mm in width b, gauge length L0 50mm | |||
Properties of Automotive Compartment Steel
High Strength-to-Weight Ratio
- Provides excellent structural integrity while reducing overall vehicle weight, improving fuel efficiency and performance.
Crashworthiness
- Designed to absorb and dissipate energy during collisions, protecting passengers and critical components.
Corrosion Resistance
- Coatings and treatments, such as galvanization, improve resistance to rust and environmental degradation.
Formability
- Easily shaped into complex designs to meet the precise specifications of automotive engineers.
Thermal Stability
- Resists deformation at high temperatures, which is crucial for engine bay and exhaust system components.
