16Mn material for seamless steel pipe in one of ABCD represents quality grade Q235 quality level is divided into A, B, C, D four 16mn steel wholesale, from A to D, said the quality from low to high. Different quality level requirements are as follows: A-- provide S, P, C, Mn, Si chemical composition and fu, fy, δ5 (δ10), the need to provide 1800 cold bend test according to the buyer, but no impact energy requirements, carbon content and manganese content is not as delivery conditions. B-- provide S, P, C, Mn, Si chemical composition and fu, fy, δ5 (δ10), cold-formed 180 'test. Also provides + 200C when the impact energy Ak≥27J C-- same except with the Class B requirements, but also provide 00C impact energy Ak≥27J. D ---- except with the same class B, but also provides impact energy when -200C Ak≥27J E-- same except with the Class B requirements, but also provides -400C impact energy Ak≥27J. 16mn precision steel is high strength low alloy structural steel, carbon content of 0.1% -0.25%, to join the main alloying elements manganese, silicon, vanadium, niobium and titanium; its total alloy containing <3%. 300,350,400 divided by the intensity and 450MPa and other four levels. There are Q295, Q345, Q390, Q420, Q460. : "Q" is the yield of the "Qu" pinyin word uppercase first, followed by figures for grades minimum yield point (σs) value. Liaocheng Katherine source Pipe Co., Ltd. is a professional steel pipe, seamless steel pipe production and marketing enterprises. Long-term with ten thousand tons of cash! Company with dozens of large steel mills to establish a long-term stable cooperative relations, adequate supply, complete varieties and specifications. We are guided by the principles of honesty 16mn steel distributors, 16mn steel continue to forge ahead, in the fierce market competition, with a good working relationship and sincere spirit of service to win the trust of our customers and continue to flourish. Continuous improvement, the pursuit of excellence, continuous improvement, and never meet the belief that together with our customers to create a win-win situation for a better future. Full of different specifications. Year the company's main products: seamless steel pipe, 16mn seamless steel pipe, 27simn seamless steel pipe 10 #, 20 #, 35 #, 45 #, 20-42Cr, 15CrMo, T91 P91 12Cr1MoV 10CrMo910 J55 K55 Q345 Cr5Mo2,15CrMo, 35CrM ... 16mn steel wholesale, Huairou District 16mn steel pipe, steel pipe Katherine source provided by the source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Katherine source of innovative ideas will lead pipe and you work into the brilliant, for a better future!