The basic manufacturing process of thick wall P22 seamless alloy pipe is: melting, blank making, extrusion and annealing heat treatment. (1) Smelting P91 steel has high alloy content. How to complete the alloying of steel in a short time is the key of smelting process. P22 seamless alloy pipe is smelted by 50t power electric arc furnace + 5T…
Read MoreDefinition of carbon steel seamless steel pipe: carbon steel seamless steel pipe is a kind of long steel with hollow section, which is widely used as pipeline for conveying fluid, such as pipeline for conveying water, natural gas, oil, gas and some solid materials. Compared with solid steel such as round steel, steel pipe has the same flexural and…
Read MoreAlloy seamless pipe is a pearlite heat-resistant alloy structural steel, which has good high-temperature mechanical properties, high plasticity during cold deformation, no tempering brittleness tendency, good machinability and acceptable weldability. It is generally used under high-temperature normalizing and high-temperature tempering; It is mainly used for superheater tubes with working temperature of 570 ~ 585 ℃ in pressure boiler, pipeline…
Read MoreWhat are the processing methods of stainless steel welded pipe? What should be paid attention to in processing? Cold drawing deep processing: it is easy to generate friction heat, so the stainless steel pipe with high pressure resistance and heat resistance shall be formed at the same time. After processing, the oil attached to the surface shall be removed….
Read MoreAlloy steel pipes can be used to transport different substances, mainly including the following: 1. Transportation of solid particles and powders – anti-wear, impact resistance, self lubrication, anti adhesion, sanitation and cleanliness, impact absorption, good silencing effect, good resistance to environmental stress cracking, light weight, which can be applied to various industries, such as anti-wear transportation of solid particles…
Read MoreStainless steel welded pipes processing is easy to cause certain changes to the inside or outside of stainless steel welded pipes. Stainless steel welded pipe welding: Before processing and welding stainless steel welded pipes, rust, oil, water, paint, etc. that are harmful to welding should be thoroughly removed, and an electrode suitable for the steel grade should be selected….
Read MoreAustenitic weld inspection within the oil and gas industry is one of the most important assets for professionals in this field. But the inspection process can be daunting without the right equipment. Austenitic alloys and stainless steel resist corrosion more than other materials but are not impervious to corrosive degradation. Therefore, NDT inspectors must implement the same rigorous NDT…
Read MorePrior to welding quality control Make a good quality of raw materials, after passing inspection before being officially entered the construction site, and resolutely put an end to the use of substandard steel. Followed by the management of welding materials. Check whether the welding materials for qualified products, storage and baking system if implemented, whether to issue a welding…
Read MoreXINYUE STEEL GROUP set up several production bases in Tianjin & Hebei Province, manufacturing ERW Steel Pipe, SSAW Steel Pipe, LSAW Steel Pipe, Seamless Steel Pipe, Scaffolding system and couplers, RHS, SHS, etc.
