Investigation of creep properties of metals in general, optimal creep testing and creep fracture testing for lifespan prediction.
The "creep test and creep rupture test" continuously apply a low tensile force below the yield point (strength) to a specimen at a constant high temperature, measuring strain and rupture time to evaluate material properties. Tests that measure strain are called creep tests, while those that do not measure strain are referred to as creep rupture tests. By parameterizing the deformation behavior, it is possible to predict the creep rupture life. [Test Items] ■ Creep Test: Strain-time diagram (creep curve), rupture time, rupture elongation, rupture reduction ■ Creep Rupture Test: Rupture time, rupture elongation, rupture reduction *For more details, please refer to the catalog or feel free to contact us.
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basic information
【Applicable Materials】 ■ General metal materials 【Specifications】 ■ Single-type testing machine ・ Maximum testing force: 15 k and 30 kN ・ Testing temperature range: 450–900 ℃ ■ Double-type testing machine ・ Maximum testing force: 30 kN ・ Testing temperature range: 300–900 ℃ ■ Specimen shapes ・ Round bar specimens (diameters of 6.0 mm, 10.0 mm, and 13.0 mm, etc.) ・ Plate specimens *For more details, please refer to the catalog or feel free to contact us.
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Applications/Examples of results
【Application Examples】 ■ Investigation of creep properties and life prediction of heat-resistant steel welding metal for petroleum reaction towers (550 ℃) ■ Investigation of creep properties of 11% Cr steel for steam turbines (650 ℃) ■ Investigation of the relationship between stress and fracture time after various heat treatments (annealing conditions) ■ Creep resistance performance testing of Ni-based superalloy steel welding metal (750 ℃) *For more details, please refer to the catalog or feel free to contact us.
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Company information
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.