GB/T 25151.4-2010 《Fabrication and inspection method for high pressure urea equipment - Part 4: Intergranular corrosion tendency test specimen preparation for ultra low-carbon chromated nickel molybdenum austenitic stainless steel of urea grade》 Related products

This standard specifies the sampling method for the intergranular corrosion propensity test of urea-grade ultra-low carbon chromium nickel molybdenum austenitic stainless steel, which is applicable to the intergranular corrosion propensity test of this type of stainless steel materials. The standard emphasizes that the samples should be representative and consistent with the state of manufacture of the product. For materials that have been treated at high temperature, the samples need to be treated in the same way. The standard provides specifications for material testing and quality control of urea-grade high voltage equipment to ensure the reliability of its corrosion resistance performance.