Soldering manganese steel 16 Mn steel pipe 16 is a high strength low carbon steel than ordinary low-alloy steel, in pipeline construction, with 16 manganese steel instead of carbon steel in general, you can save a lot of steel to the country. 16 Mn has a certain hardening tendency, in the sub-zero cold welding, there may affect the mechanical properties of a brittle structure in the welded joint, or in the weld and heat-affected zone, resulting in cracks and other phenomena. Required combat readiness, some 16 manganese steel pipeline projects, require welding work in the Northeast winter conditions, 16 manganese steel pipe soldering field (refer to the following -10 ℃), there is no mature experience abroad. Therefore, soldering is the key to 16 manganese steel pipeline construction quality assurance. 45 thick-walled seamless steel pipe 45 # parts with good mechanical properties after quenching seamless, 45 # seamless steel pipe is widely used in a variety of important structural parts of steel, especially those working under alternating loads rod, bolts, gears and shafts, etc. However, lower surface hardness, do not wear. Available quenched + surface hardening to improve the chemical composition of the hard parts of the surface: its chemical composition containing carbon (C) is the amount of 0.42% to 0.50% manganese steel Shandong 16, Si content is 0.17 ~ 0.37%, Mn content of 0.50 to 0.80% manganese 16 thick-walled steel, Cr content <= 0.25%. Heat treatment: Recommended heat treatment temperature: Normalizing 850, 840 quenching and tempering of steel 600.45 quality carbon structural steel, hardness is not high machinability, 16 manganese steel prices molds used to do a template, shoot the child, guide posts, etc. subject to heat treatment. 1.45 Number of steel after quenching and tempering not before, hardness greater than HRC55 (up to HRC62) is qualified. The practical application of the maximum hardness of HRC55 (induction hardening HRC58). 2.45 Do not use carburizing of steel heat treatment process. After quenching parts with good mechanical properties, widely used in a variety of important structural parts, especially those that link at alternating work load, bolts, gears and shafts, etc. However, lower surface hardness, do not wear. Available quenched and tempered + surface hardening to improve part surface hardness. 16 Mn steel prices, steel pipe, pipe industry by virtue virtue Liaocheng Industry Co., Ltd. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!