供应SA516Gr60 HIC 与SA516Gr60R-HIC有什么区别

Test rules for sulphide stress corrosion resistance of steel platesA.Test method for Sulfide Stress corrosion (SSCC), one of which is optional(1) Implement GB4157 standard.(2) Implement NACE TM0177 standardB. SCC test acceptance rulesThe threshold stress is 80% of nominal yield, SSCC test shall be accepted in batches, a batch of samples shall be selected from the steel plate w