HG/T 3172-2002.Fabrication and inspection method for High pressure urea equipment preparation of the test coupons for the intergranular corrosion trend test on the urea grade extra low carbon Cr-Ni-Mo austenitic stainless steel.HG/T 3172适用于尿素高压设备尿素级超低碳铬镍钼奧氏体不锈钢晶间腐蚀倾向试验的取样。如有特殊要求,在协议中另行规定。
2试件和试样的状态
2.1试件和试样的代表性
试件和试样应具...................
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