What material does vehicle steel plate belong to?
2 Answers
Automotive steel plates are classified into hot-rolled steel plates, cold-rolled steel plates, and coated steel plates based on production process characteristics. From the perspective of strength, they can be divided into: ordinary steel plates (mild steel plates), high-strength low-alloy steel plates (HSLA), ordinary high-strength steel plates (high-strength IF steel, BH steel, phosphorus-containing steel, and IS steel, etc.), and advanced high-strength steel plates (AHSS). Different components have different requirements for steel plates: 1. Panel components: Panel components require the steel plates to have good formability, strength, ductility, dent resistance, and corrosion resistance. 2. Structural components: Structural components require the steel plates to have good formability, strength, collision energy absorption capacity, durability, corrosion resistance, and weldability. 3. Running components: Running components require the steel plates to have good formability, rigidity, fatigue durability, corrosion resistance, and weldability.
I've been running an auto repair shop for over a decade. The vehicle's steel plates are primarily made of high-strength steel, which is highly rigid and impact-resistant. Used in areas like doors and roofs, they can withstand daily scratches and collisions. Modern car design emphasizes lightweighting, so steel plates often undergo thinning treatments without compromising strength, and some are coated with zinc layers for rust prevention—especially in rainy regions—to extend the vehicle's lifespan. During routine maintenance, I've noticed that choosing the right materials reduces repair frequency. For example, galvanized steel plates resist rust and don't corrode quickly even on salt-sprayed winter roads. In short, this material makes cars safer and more reliable, providing much steadier driving.
