Tensile test is to make the seamless steel pipe/tubes into a sample, in the tensile testing machine will be the sample to break, and then determine one or several mechanical properties, usually only the determination of tensile strength, yield strength, elongation after fracture and section shrinkage.
The boiler pressure element of 20G high pressure boiler tube is made of steel. Generally, it is applied in the boiler of less than 39 kilograms. In order to be used under higher pressure, the seamless steel pipe/tubes heating surface is often designed very thick.
In order to reduce thermal resistance and save steel, ensure the safety of seamless steel pipe/tubes, but also in order to reduce the amount of seamless steel pipe/tubes, the common use is 16MnG. At the same time, there are also added rare earth, magnesium and other metal and non-metallic materials of special steel.
This improves the performance of seamless steel pipe/tubes, reduces steel consumption, and also reduces thermal resistance.
Tensile test is a basic test method of mechanical properties of seamless steel pipe/tubes. Almost all seamless steel pipe/tubes, as long as there are requirements for mechanical properties, are provided with tensile test.
