High temperature and high pressure corrosion test is a kind of metal cracking related to corrosion and tensile stress (residual and added) in high temperature and high pressure environment. Test method and standard test scheme test standard sample require A method - standard tensile NACE TM0177-2005 GB/T4157-2006 ASTM G39-99 ISO 7539-2011 simulated working condition test to provide drawing temperature: 25 + 3 degree C force: yield strength 80% or user self determined test medium: solution A: chloroacetate 5%, glacial acetic 0.5%, satiety And hydrogen sulfide solution B: sodium chloride 5%, glacial acetic acid 0.23%, sodium acetate 0.4%, saturated hydrogen sulfide solution evaluation: fracture and crack B method standard bending beauty standard (three point bend): 67.3mm*4.57mm*1.52mm national standard (two points): wide 15-25mm, long 110mm-255mm, large loading stress (more than 200MPa) sample, thickness required 0.8-1.8m M C method -C shape ring beauty standard: outer diameter more than 15.9mm national standard: external diameter more than 15mm specific reference drawing D method - standard double cantilever beam Sino-American standard: 110mm*30mm*10mm four point bending method long 110mm-250mm, wide 15mm-50mm, thickness guest for GHSC sulfur hydrogen sulfide corrosion NACE TM0177-2005 reference sulphide test conditions should be tested according to the above test The specified requirements are carried out and the following additional requirements, choices and instructions are met. A) The CRA specimen forms a couple with the non-alloy steel (i.e. carbon steel) completely immersed in the test solution. According to the requirements of NACE TM0177-1996, the area ratio of non-alloy steel to the area of wetted CRA specimen should be between 0.5 and 1. Electrical insulation shall be provided between the loading fixture and the specimen and the coupled carbon steel. For evaluation of specific applications, CRA can be coupled to specimens of low alloy materials that will be coupled to it in use. (b) The experimental environment was NACE TM0177-1996 A solution with H2S partial pressure of 0.1 MPa and temperature of 24 + 3. The SSC test environment described in E2.5 can be used for evaluation of specific applications.