BS EN ISO 9400-1996 镍基合金.抗晶间腐蚀性的测定

标准号：BS EN ISO 9400-1996
中文标准名称：镍基合金.抗晶间腐蚀性的测定
英文标准名称：Nickel-based alloys. Determination of resistance to intergranular corrosion
标准类型：H25
发布日期：1996/1/15 12:00:00
实施日期：1996/1/15 12:00:00
中国标准分类号：H25
国际标准分类号：77.060;77.120.40
适用范围：This International Standard specifies four methods for determination of the susceptibility or nickel-based alloys to intergranular corrosion. These methods are for laboratory testing of suscep-tibility only, and a direct correlation with inter-granular corrosion in actual service may not occur unless the service medium is the same as the test medium. The methods covered are as follows: — Method A: iron(III) sulfate —sulfuric acid test (section 2); — Method B: copper —copper-sulfate —16 % sulfuric acid test (section 3); — Method C: hydrochloric acid test (section 4); — Method D: nitric acid test (section 5); The appropriate method for use with a given alloy, the selection of sensitizing treatment, and the ac-ceptance criteria to be used in any evaluation have to be agreed between the buyer and seller of the alloy. As a guide, the methods specified in this In-ternational Standard should be applicable to those nickel-based alloys used for corrosion service and listed in ISO 62O7[1],