This standard specifies the order content, size, shape, weight, technical requirements, test methods, inspection rules, Encasement, marking and mass certificate of corrosion-resistant alloy welded pipes. It is suitable for corrosion-resistant alloy welded pipes (hereinafter referred to as welded pipes) with alloy grades NS1101, NS1102, NS1104, NS1402, NS1403, NS3102, NS3304, NS3306, NS6400.
| Status | Active |
|---|---|
| CCS | H59 | ICS | 77.140.99;77.140.75 |
| Release Date | 2019-08-30 00:00:00 | Implementation Date | 2020-07-01 00:00:00 |