Welding crack tests that occur at high temperatures! Evaluation by classifying solidification cracks and liquefaction cracks due to re-heating.
The "Varestraint Test" is one of the tests used to investigate the susceptibility to welding cracks that occur at high temperatures. This test involves applying instantaneous bending deformation to a test plate that is molten with a TIG welding torch, forcing high-temperature cracks to occur in the molten bead. It allows for the evaluation of solidification cracks and liquefaction cracks due to re-heating separately. It is used for comparing the crack resistance of welding materials and selecting welding conditions, and by changing the bending radius of the jig (strain amount) or measuring the crack temperature range of the test piece, cracks can be quantitatively evaluated. [Test Items] ■ High-temperature crack susceptibility of the welded joint *For more details, please refer to the PDF document or feel free to contact us.
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【Applicable Scope】 ■ Welded joints of carbon steel and special steel (low alloy steel, stainless steel, etc.) (weld metal and heat-affected zone) ■ Welded joints of non-ferrous metals (such as nickel alloys) *For more details, please refer to the PDF document or feel free to contact us.
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【Applicable Scope】 ■ Welded joints of carbon steel and special steel (low alloy steel, stainless steel, etc.) (weld metal and heat-affected zone) ■ Welded joints of non-ferrous metals (such as nickel alloys) *For more details, please refer to the PDF document or feel free to contact us.
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Shin-Ko Welding Service Co., Ltd. is a company that provides testing, research, analysis, and welding training related to the welding and joining of metal materials, based on the rich experience and high technology cultivated over many years at Kobe Steel, a top manufacturer in the welding industry. We strive to be a close partner to our customers, always aiming to be of service.