BS EN ISO 3651-1-1998 不锈钢耐晶间腐蚀的测定.奥氏体和铁素体－奥氏体(二相)不锈钢.测定不锈钢在硝酸介质中质量损失的腐蚀试验(休伊试验)

标准号：BS EN ISO 3651-1-1998
中文标准名称：不锈钢耐晶间腐蚀的测定.奥氏体和铁素体－奥氏体(二相)不锈钢.测定不锈钢在硝酸介质中质量损失的腐蚀试验(休伊试验)
英文标准名称：Determination of resistance to intergranular corrosion of stainless steels - Austenitic and ferritic-austenitic (duplex) stainless steels - Corrosion test in nitric acid medium by measurement of loss in mass (Huey test)
标准类型：H11
发布日期：1998/7/15 12:00:00
实施日期：1998/7/15 12:00:00
中国标准分类号：H11
国际标准分类号：77.060
适用范围：This part of ISO 3651 specifies a method for the determination of the resistance to intergranular corrosion of austenitic and ferritic-austenitic (duplex) stainless steels in a nitric acid medium by measurement of the loss in mass (Huey test). It also specifies the purpose which may be assigned to the test. The method is applicable only to austenitic and ferritic-austenitic (duplex) stainless steels supplied in the form of rolled or forged products, tubes and cast products and intended for use in a strongly oxidizing medium (for example, relatively concentrated nitric acid). In general the Huey test should not be used for grades containing molybdenum unless the material tested is to be used in nitric acid service. NOTE — It is important to note that the result of the corrosion test is only strictly valid for the corrosive medium used in the test. It constitutes a basis for estimating the resistance to intergranular corrosion but may not be used to check resistance to other forms of corrosion (general corrosion, pitting, stress corrosion, etc.). It is necessary for the user to adapt the specified corrosion test to the use which will be made of the alloy. This test should, in no case, be considered as an absolute criterion of the quality of the alloy.