Alloy steel pipe
Alloy pipe has a hollow cross section, a large number of used for conveying fluid pipelines, such as oil, natural gas, gas, water and some solid materials pipeline. Alloy steel pipe and round steel and other solid steel, in the bending and torsional strength of the same, light weight, alloy steel pipe is a kind of economic section of steel, widely used in the manufacture of structural parts and mechanical parts, such as oil drilling pipe, automobile drive shaft, bicycle frame and construction of steel scaffolding. Making ring parts with alloy steel pipe can improve the material utilization rate, simplify the manufacturing process, save the material and processing time, such as rolling bearing ring, jack cover, etc., has been widely used in steel pipe manufacturing. Alloy steel pipe is also an indispensable material for all kinds of conventional weapons. The barrel and barrel of guns are made of steel pipe. Alloy steel pipe can be divided into round pipe and special pipe according to the different shape of cross-sectional area. Since a circle has the largest area when the circumference is equal, more fluid can be transported with a circular tube. In addition, the annular section is subjected to the internal or external radial pressure, the force is relatively uniform, therefore, the vast majority of steel tubes are round tubes.
The material of alloy tube is generally: 16-50Mn, 27SiMn, 40Cr, 12-42CrMo 16Mn12Cr1MoV, T91 27SiMn 30CrMo 15CrMo 20G Cr9Mo 10CrMo910 15Mo3 15CrMoV 35CrMoV 45CrMo , 15CrMoG, 12CrMoV, 45Cr, 50Cr, 45CrNiMo, etc.