牌號 | P235TR2 |
1.0255 | |
對應(yīng)標準 | NF EN 10253-2-2007
對焊管件-第2部分:具有特殊檢驗要求的非合金和鐵素體合金鋼 Butt-welding pipe fittings- Part 2: Non alloy and ferritic alloy steels with specific inspection requirements |
歸類 | 合金鋼 |
Material designation | Heat treatment symbol | Austenitizing temperature ℃ | Cooling medium | Tempering Temperature ℃ | Cooling medium | |
Name | Number | |||||
P235TR2 | 1.0255 | +N | 880 to 940 | air | - | - |