Compared with solid steel such as round steel, steel pipe is lighter in flexural and torsional strength and is a kind of economical cross-section steel. Alloy seamless steel pipe has the advantages of high temperature resistance, high pressure resistance, corrosion resistance, etc., in recent years worldwide The consumption is increasing year by year, mainly used in pipeline transportation, which can be used to transport some fluids, such as some energy, etc. The transportation of oil and natural gas and some groundwater can be realized by seamless steel pipes.
In modern society, seamless steel pipe is widely used in many fields. Seamless steel pipe is rolled by ordinary carbon structural steel, low alloy structural steel or alloy structural steel. It is mainly used for conveying fluid pipeline or structural parts. The main executive standards of alloy seamless steel pipe are seamless steel pipe for high-pressure boiler, which is used for manufacturing high-pressure and above pressure water tube boiler heating surface, high-quality carbon steel, alloy steel and stainless heat-resistant steel seamless steel pipe. Alloy seamless steel pipe is widely used in hydraulic prop, high pressure cylinder, high pressure boiler, chemical fertilizer equipment, petroleum cracking, automobile half shaft sleeve, diesel engine and other industries.
The alloy steel pipe has high wear resistance, with the addition of FEV, FeNb and Cu, the micro structure is lath martensite + bainite, with finer grains, higher strength and stronger plasticity. The high temperature and corrosion resistance of the rare earth wear-resistant alloy pipe is also very high. The content of Ni and Cr in the alloy directly determines the temperature resistance of the material.
Rare earth wear-resistant alloy casting has good weld ability and can be cut. It can be butt welded with low carbon steel. It is suitable for operation, construction, installation and use in various places.
Cold drawn precision seamless steel pipe is used for mechanical structure and hydraulic equipment with high dimensional accuracy and good surface finish. Selecting precise seamless pipe to manufacture mechanical structure or hydraulic equipment can greatly save machining time, improve material utilization rate and improve product quality.
Alloy steel pipe