wholesale Alloy Steel Bar Introduction The 15-5pH steel round bar has a martensitic structure. It has excellent mechanical properties - strength and hardness, as well as excellent corrosion resistance. It is suitable for many ranges and has been exported to many countries at home and abroad. Welcome to buy. Mechanical properties: C(%)Si(%)Mn(%)P(%)S(%)Cr(%) 0.0711Max 0.04Max 0.0314.0-15.5 Yield Rp0.2 (MPa)Tensile Rm (MPa)Impact KV/Ku (J)Elongation A (%)Reduction in cross section on fracture Z (%) 782 (鈮?915 (鈮?311233 Quality Assurance 1. Checking raw material before producing. 2. Checking one by one before the assebling 3. Checking one by one during the production 4. Have the random inspection before the delivery. Quality inspection before deliverywholesale Alloy Steel Bar website:http://www.cnaluminumalloy.com/alloy-steel/alloy-steel-bar/