Medium thickness steel products have a wide range of applications including shipbuilding, construction, large diameter welded pipe and boiler. Generally, the thickness of medium thickness steel plate is between 10 mm and 200 mm.
The detailed information
Medium thickness steel products have a wide range of applications including shipbuilding, construction, large diameter welded pipe and boiler. Generally, the thickness of medium thickness steel plate is between 10 mm and 200 mm. This classification identifies the material composition (carbon content, alloy, etc.) of the plate, indicating that its yield strength and tensile strength are above predetermined values, that its section shrinkage and elongation are within tolerances, and that the medium thickness plate meets the minimum hardness requirements. Ensuring that medium and thick steel plates meet the requirements of the classification standards is essential to the design of safe and reliable products.
The tensile
The tensile test of medium – thick steel plates measures tensile properties such as yield strength and ultimate strength, section shrinkage and elongation. The test system should be strong and durable while ensuring the accuracy and stability of test results. The testing machine and its fixture and measuring system must not be affected by the oxide layer contamination on the surface of the hot rolled sample. When handling deformed (twisted or bent) specimens, it is important to ensure the reliability of the sample measuring station and fixture. The test control software must employ advanced algorithms to calculate test results for various strain/stress curves.
The solution
Closed-loop control; The load range is 100 kN to 2,000 kN. Automated systems reduce the variability of operator measurement techniques and improve the reliability and repeatability of test results. All kinds of fixtures are provided, including manual, fully automatic pneumatic/hydraulic wedge fixtures, etc.
bending
Guided bending tests are used to evaluate the ductility of medium – thick steel plates. According to the frame used, the base rises with the mesa or the beam falls and the bending center is applied to the sample, resulting in bending force. The specimen is bent 180 degrees by the force exerted by the bending center and the supporting roller on the base. The bending center diameter required for the test depends on the thickness of the medium plate. The tester shall have the function of fixing fixture to prevent sliding during the test.
The solution
Bend the fixture to test the plasticity of medium – thick steel plate specimens. The clamp uses a bend center of specified diameter to keep the bend center aligned with the base so that the force is applied to the span center.
Post time: May-11-2022