Main Markets: Africa , Americas , Asia , Caribbean , East Europe , Europe , Middle East , North Europe , Oceania , Other Markets , West Europe , Worldwide
Exporter:71% - 80%
Certs:ISO9001, Test Report, API, CE, TUV
Description:8 Inch Big Dia Steel Pipe,Quenched And Tempered Steel Tubes,12 Inch Large Diameter Steel Pipe
Quenching and tempering heat treatment carbon seamless steel pipe
The commonly used heat treatment processes for steel pipes mainly include quenching, tempering, normalizing and annealing. For example: the casing, oil pipe, drill pipe, line pipe, etc. in the special oil pipe, according to the level of the steel grade, the process of normalizing, normalizing and tempering, quenching and tempering is adopted accordingly; spheroidizing annealing of steel pipes for bearings Wait. The common quenching and tempering (QT) is a double heat treatment of quenching and high temperature tempering, and its purpose is to make the workpiece have good comprehensive mechanical properties. quenched and tempered steel has two categories: carbon quenched and tempered steel and alloy quenched and tempered steel. Whether it is carbon steel or alloy steel, its carbon content is strictly controlled. If the carbon content is too high, the strength of the workpiece after quenching and tempering is high, but the toughness is not enough. If the carbon content is too low, the toughness is improved and the strength is insufficient. In order to obtain good comprehensive performance of the quenched and tempered parts, the carbon content is generally controlled at 0.30~0.50%.Astm A193,Round Steel Tubing,Heat Treated Steel Tube,Heat Treated Steel Bar And Tube
Material
Alloy steell&Carbon steell
Sizes
OD range from 20mm to 100mm, Thickess: from 4mm to 20mm
Tolerances
Precision to h9, h10, h11
Roundness
75% of diameter tolerance
Straightness
Good straightness to 0.5mm/m
Surface roughness
Smooth to 0.8um
Mechanical properties
Yield strength and tensile strength can be improved
