Home / Standards / GB/T 39077-2020 GB/T 39077-2020 Abolished Test methods for detecting detrimental phases in lean duplex austenitic-ferritic stainless steels 经济型奥氏体-铁素体双相不锈钢中有害相的检测方法 Standard Type GBT ICS 77.040.99 CCS H24 Status 废止 Issue Date 2020-09-29 Implementation 2021-04-01 Responsible Dept 中国钢铁工业协会 Drafting Unit N/A