汽车车身外板用钢1.5mm厚热镀锌钢板厂家高强度钢板z700

轿车车身用钢板包括：热/冷轧钢板、表面处理（镀覆）钢板、不锈钢板、高强度钢板等。

Steel plates for car body include: hot / cold rolled steel plate, surface treatment (coated) steel plate, stainless steel plate, high strength steel plate, etc.

钢板的主要性能报货可塑性、弹性、加工硬化。

The main properties of steel plates are reported as plasticity, elasticity and processing hardening.

热轧软钢板：含碳量一般在0.15％以下，硬度低、抗拉强度不高。主要用于挡泥板、地板、行李箱铰链、保险杠等。

Hot rolled soft steel plate: the carbon content is generally below 0.15%, low hardness, tensile strength is not high. Mainly used for fenders, floors, luggage compartment hinges, bumpers, etc.

冷轧软钢板：相比热轧软钢板加工性能好，且表面美观。如Q215、碳钢和低合金结构钢冷扎钢板、10F、08F、优质碳素结构钢冷轧薄钢板等，用于车身外板、零件的外壳、车顶板、行李箱盖、发动机罩、车门内外板、保险杠、挡泥板等。

Cold rolled soft steel plate: compared with hot rolled soft steel plate processing performance, and beautiful surface. Such as Q215, carbon steel and low alloy structure steel cold-tie steel plate, 10F, 08F, high quality carbon structure steel cold-rolled thin steel plate, etc., used for the body outside plate, parts shell, roof plate, trunk cover, hood, door inside and outside plate, bumper, fender, etc.

高强度钢板：抗拉强度相当高，具有很强的抗破坏能力。用于车身外板、翼子板等。

High strength steel plate: the tensile strength is quite high, with a strong damage resistance. For the body outboard, fenders, etc.

表面处理钢：镀锌钢板、锌粉漆涂装钢板等，防腐蚀性能好。用于车门、车顶内衬板、下护板、车身底部等。

Surface treatment steel: galvanized steel plate, zinc powder paint coated steel plate, etc., good corrosion prevention performance. For doors, roof lining panels, lower guards, body bottom, etc.

汽车车身外板用钢主要用于制造前、后、左、右车门外板、发动机罩外板、行李箱盖外板等零件。汽车车身外板应具很好的成形性,抗腐蚀性和抗凹性以及良好的点焊性,汽车车身外板多用镀层板,以满足汽车外板4 年运行无锈斑的防腐要求,为了提高抗凹性,汽车外板的钢板多用BH 钢(烘烤硬化钢) , IF 增磷钢以及高成形性的冷轧退火双相钢(如DP30260 等) ,以减薄厚度,保证抗凹性;涂层板多用热镀锌板、热镀锌铁板、电镀锌板以及电镀锌- Ni 板等,用合金镀层板的目的是减薄镀层厚度,提高结合力,改善点焊性,减少焊接车间锌污染。

The steel used for the car body outer plate is mainly used for manufacturing the front, rear, left and right car outer door plate, engine hood outer plate, trunk cover outer plate and other parts. The car body exterior plate should be very well formed, Corrosion and concave resistance and good spot welding resistance, Car body exterior plate multi coated plate, In order to meet the anti-corrosion requirements of 4 years of running without rust, To improve the concave resistance, The steel plate of the automobile outer plate is mostly used as BH steel (baked hardened steel), IF phosphorus-enhancing steel and high-forming cold-rolled and annealed dual-phase steel (e. g., DP30260, etc.), To reduce the thin thickness, Ensure the concave resistance; Coating plate is mostly hot galvanized plate, hot galvanized iron plate, electrogalvanized plate and galvanized-Ni board, The purpose of the alloy plating plate is to reduce the thin coating thickness, Improve the binding forces, Improve spot weldability, Reduce the zinc pollution in the welding workshop.