SA-989/SA-989M
SA-989/SA-989M (高温设备用热等静压合金钢法兰、配件、阀门和零件规范)· ASME (美国) · 5 种材料
| 名称 | 材料组别 | |
|---|---|---|
| SA-989 K21590 Class 1 | 结构钢 | chevron_right |
| SA-989 K21590 Class 3 | 结构钢 | chevron_right |
| SA-989 K31545 | 结构钢 | chevron_right |
| SA-989 K90901 | 结构钢 | chevron_right |
| SA-989 K90941 | 结构钢 | chevron_right |