Car door with strength steel material; People often think there is a common plumbing tubes and the like, it is not true; Japanese and Korean cars are generally used in the tensile strength of the pipe up 1400-1600MPA (currently some domestic brand cars are used more common tube), is more than four times the normal strength of the pipe, its energy absorption effect is more than 2 times the normal tube; common in European and American car bumper beams tensile cap generally reach 1400MPA; 3, the thickness of the material ; of course, the thicker the material, the better energy absorption (without regard to the A / B / C pillar, sill match) 28x2.2 door bumper, energy absorbing effect proportional to the thickness of the material. China is now with Bao Steel Coil BR1500HS material, tensile strength reached 1500MPA. Liaocheng Jinghua Steel Pipe Co., Ltd.: producing a variety of automotive steel, automobile bumper car door after the pipe, BR1500HS pipe, 32x2 22x2.2 specifications are heat treated according to customer requirements sizing saws. Anti The utility model provides a bumper car door, including bumper body (2), and at least one welded bumper body (2) of the deformation region: the use BR15OOHS bumper of the car door lance reinforcement bracket (3,4), the strengthening of regional length bumper bracket (3,4) is greater than the bumper cover body (2) at the arc deformation area; also includes welded bumper body ( front bumper plate (1) and after bumper plate (5) 2) on. Bumper car door and inner door panels fixed connection, bumper reinforcement bracket connected by rubber-coated isolation and car door panels. The bumper bumper deformation increases the strength and stiffness of the position, reducing the chance of bumper sag bending inward, thereby increasing traffic safety; and according to the collision between the car door panels and rods clearance requirements to adjust the shape of the bracket to meet clearance requirements, improve door panels dent resistance. Jinghua Steel Pipe Co., Ltd. Liaocheng: automobile production and sales of all kinds of steel pipe, tube door car seat bumper price per ton, automotive precision tubes, door bumper, BR1500HS steel specifications are 22x2.2 32x2 28x2.2 After the heat treatment, the tensile strength 1500MPA, saw length according to customer requirements, the performance: yield strength before quenching ≥300MPa, tensile ≥600MPa; yield strength after quenching ≥1200MPa, tensile ≥1500MPa 26x2 door bumper _ Jiangsu Jinghua steel door bumper _ provided by Jinghua Steel Pipe Co., Liaocheng. Liaocheng Jinghua Steel Pipe Co. (www.sdwfgc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinghua pipe into the brilliant and you work for a better future!