HAZ embrittlement is often caused by 16Mn straight seam steel pipe fracture, induced root cause catastrophic accidents. Partial embrittlement has two main areas, namely the heat-affected zone CGHAZ embrittlement is due to over-grown grains overheated zone and the formation of undesirable tissue caused by the multi-layer welding CGHAZ again critical embrittlement, That CGHAZ heated again before the weld bead by a subsequent two-phase region caused. This is done by adding a certain amount in the steel Ti, Nb micro-alloying elements and control weld cooling rate to get the right t8 / 5 to improve toughness. With 16Mn straight seam to reduce the carbon content of the steel pipe, welded reduced susceptibility to hydrogen-induced cracking, in order to avoid cracking process measures needed to reduce the extent of damage reduced performance weld heat affected zone. However, due to the welding seam steel 16Mn straight through a series of complex physical and chemical non-equilibrium processes 16mn thick-walled steel plant, which may cause defects in the weld zone, or the joint performance degradation, mainly weld cracking problem and HAZ embrittlement problem. Katherine source Pipe Co., Ltd. is located in Liaocheng scenic Jiangbei Shuicheng - Liaocheng Economic and Technological Development Zone, location and convenient transportation. Professional production and sales of seamless steel tubes, high-pressure steel pipe 16mn thick-walled steel pipe, fluid seamless steel pipe, 45 # thick-walled seamless steel pipe, large diameter thick wall steel pipe, precision seamless steel tubes. Our company is a production, operating as one of the large steel distribution companies, was founded in 2006 and currently employs 158 people, engineering and technical personnel 13 people, including more than a mid-level titles in engineering and technical personnel 8. Eight existing seamless large-scale warehouse company, covering two hundred and thirty acres, of which four carbon steel seamless steel warehouse, inventory is made of 20 #, 45 #, low alloy pipe warehouse two Wuxi 16mn thick-walled steel inventory made of 16mn, 40cr, 27simn like a high-pressure alloy pipe warehouse, inventory material for 12cr1mov, 15crmo, 12cr1movg, 15crmog, P22, T22 (10Cr1Mo910) P91, T91, P22, Cr5Mo, Cr9Mo, 12Cr2MoWVTiB, our company material Complete specifications, truly seamless steel pipe one-stop shopping! Large diameter thick-walled steel pipe _ Katherine source 16mn 16mn thick-walled steel pipe _16mn provided by the source Pipe Co., Ltd. Liaocheng trillion. Source Pipe Co., Ltd. Liaocheng trillion (www.lczygg.com) in this field pipe poured boundless enthusiasm and passion, Katherine source pipe has been customer-centric, the concept of creating value for customers, quality and service to win market and sincerely hope to cooperate with the community to create a successful, create brilliant. Related businesses welcomed the inquiry, contact: Manager Wu.