Changsha Xiangjia Metal Materical Co., Ltd.

Alloy steel pipes   are used in low and medium pressure boilers with a working pressure not exceeding 5.88Mpa and a working temperature below 450℃. They are used for heating pipes, economizers, superheaters, reheaters, and pipes for petrochemical industries in high-pressure boilers (with a working pressure generally above 9.8Mpa, a working temperature between 450℃ and 650℃). To enlarge the argon protection area and enhance the protection effect, a large-diameter welding gun nozzle and increase the argon flow rate can be used for welding alloy pipes. If there is obvious splatter material obstructing the argon flow on the nozzle, the splatter material must be removed or the nozzle replaced. The control of the welding temperature of alloy pipes mainly relies on the control of welding speed and welding current. Experimental results have shown that high current and fast welding speed can effectively prevent the generation of gas porosity. It is because welding the seam at a fast speed ...

16Mn low alloy pipe   is: 16Mn is called low alloy high strength structural steel, its carbon content is 0.1%-0.25%, and the main alloying elements manganese, silicon, vanadium, niobium and titanium, but the total alloy content is <3%. According to the strength, it is divided into 4 level: 300, 350, 400 and 450MPa. 16Mn alloy pipe standard: GB/T8163-2008 (for conveying fluid) GB6479-2000 (seamless steel pipe for high-pressure fertilizer equipment) Alloy pipes and seamless pipes has the same charactor but different. Alloy pipes are defined by steel pipes according to the production materials, as the name implies, they are pipes made of alloys, while seamless pipes are defined by steel pipes according to the production process (seamless). Changsha Xiangjia Metal Materical Co., Ltd.  as steel division of  ADTO Group , we have over 20 years of piping materials making experience and insight into Oil & Gas, Water, Mining, Marine and infrastructure and specializing in the...