Mechanical Property Testing of Metal Pipe GB/T 246-1997


The production of pipe products requires forging, seamless processing, welding and other manufacturing processes. Almost all types of metal materials can be used for pipe production, from cast iron to super heat-resistant alloy steel.


detailed information


The production of pipe products requires forging, seamless processing, welding and other manufacturing processes. Almost all types of metal materials can be used for pipe production, from cast iron to super heat-resistant alloy steel.


compress


The compression test is used to test the plasticity and structural stiffness of pipes. It is very important to determine the bearing capacity of buried pipes for selecting appropriate products. The test sample is partially or completely flattened. The common standard is to check whether the pipe surface is broken or cracked.


Solution


Methods of flattening test for metal tubes GB/T 246-1997. Tube flattening clamps with relevant dimensions and professional software control systems are configured according to the standard


stretching


The size and shape of pipe will bring difficulties to tensile test. Without proper test equipment, the operator may inadvertently flatten both ends of the sample during clamping. In addition, since complete tube samples are usually larger than solid round samples, clamps with large openings are required. Some pipe samples are too large, so the operator must cut some pipes from the pipe wall. These tube wall samples can be made into flat steel strip samples or machined into round samples.


Solution


In order to prevent the clamping of the testing machine from flattening the hollow pipe sample, usually the operator can choose the wedge clamp with V-shaped groove clamping when inserting metal plugs at both ends of the pipe.