304 stainless steel on the weight management formulas :( OD - Wall Thickness) × wall thickness × 0.02491 = weight per meter (kg) mechanical properties of yield strength (N / mm2) ≥205 ≥520 tensile elongation (%) ≥ 40 Hardness HB ≤187 HRB≤90 HV≤200 density 7.93 g · cm-3 specific heat c (20 ℃) ??0.502 J · (g · C) -1 Thermal conductivity λ / W (m · ℃) -1 (in The following temperature / ℃) 20 100 50012.1 16.3 21.4 linear expansion coefficient α / (10-6 / ℃) (among the following temperature / ℃) 20 ~ 10020 ~ 200 20 ~ 300 20 ~ 40016.0 16.8 17.5 18.1 resistivity of 0.73 Ω · mm2 · m-1 melting point of 1398 ~ 1420 ℃ 304 stainless steel pipe has good resistance to intergranular corrosion of stainless steel decorative tube, excellent corrosion resistance and cold, stamping performance, can be used as a heat-resistant stainless steel. Meanwhile stainless steel pipe fittings, the steel at -180 ℃ condition is still good mechanical properties. In the solution state steel ductility, toughness, cold is good; good 316l stainless steel pipe corrosion in oxidizing acids and atmospheric, water and other media, and therefore, the production and use of 304 stainless steel is the largest, most range of applications wide stainless steel pipe fittings, and Shengda Po-commerce (certified), stainless steel pipe provided by the Tianjin Shengda Bao Jie Trading Company. Bao Jie Tianjin Shengda Trading Company (www.sdbjsm.com) is Tianjin, hardware leader, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Shengda Po-commerce leader in the staff warmly welcome all inquiries negotiations to create Shengda Po-commerce a better future.