Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron pipe, high quality ductile iron pipe, cast iron pipe fittings flexible 45 # seamless steel pipe prices net, cast iron pit wells quality of our products. Mechanical properties of steel is to ensure that the steel end-use properties (mechanical properties) is an important indicator of 45 # seamless steel pipe provider, it depends on the chemical composition and heat treatment of steel. In the steel standard, depending on the application requirements, the provisions of the tensile properties (tensile strength, yield strength or yield point elongation) and hardness, toughness index, as well as user requirements of high and low temperature performance. Building Materials Co., Ltd. mainly produces Liaocheng Shunxiang variety of milling of cast iron pipe, high quality ductile iron pipe, flexible cast iron pipe fittings, cast iron pit wells quality of our products. Brinell hardness measurement more accurate and reliable, but generally only apply to HBS 450N/mm2 (MPa) below the metal material 45 # seamless steel for hard or thin sheet does not apply. In 45 # seamless steel pipe standard model table, Brinell hardness most widely used, often indentation diameter d to represent the hardness of the material, both intuitive and convenient. 45 # seamless steel pipe model table _ Hulunbeier 45 # seamless steel pipe _ Shunxiang ductile pipe provided by Shunxiang ductile pipe. If you have any questions about this information or consultation, please contact us now! Our Company: Liaocheng Shunxiang Building Materials Co., Ltd. (www.lcsxjc.com) Contact: Manager Ge, or click on "Business League call" direct dialogue with us!