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...