牌號(hào) | X20Cr13 |
1.4021 | |
對(duì)應(yīng)標(biāo)準(zhǔn) | NF EN 10088-2-2005
普通用途不銹鋼板和鋼帶的交貨技術(shù)條件 Part2:Technical delivery conditions for sheet/plate and strip of corrosion resisting steels for general purposes |
歸類 | 馬氏體不銹鋼 |
標(biāo)簽 | 標(biāo)準(zhǔn)等級(jí) |
Material designation | Heat treatment condition | Minimum 0.2%-proof strength,MPa at a temperature (in°C) of: | |||||||
Name | Number | 100 | 150 | 200 | 250 | 300 | 350 | 400 | |
X20Cr13 | 1.4021 | +QT650 | 420 | 410 | 400 | 385 | 365 | 335 | 305 |
Material designation | Hot forming | Heat treatment symbol | Annealing | Quenching | Tempering | ||||
Name | Number | Temperature ℃ | Type of cooling | Temperature ℃ ① | Type of cooling | Temperature ℃ ① | Type of cooling | Temperature ℃ | |
X20Cr13 | 1.4021 | 1100 to 800 | slow cooling | +A | 730 to 790 | - | - | - | - |
+QT | - | - | 950 to 1050 | oil,air | 200 to 350 | ||||
+QT650 | - | - | 950 to 1010 | 700 to 780 | |||||
+QT750 | - | - | 620 to 700 |
◎ Temperatures of annealing,quenching and tempering shall be agreed for simulated heat-treated test-pieces. ① If heat-treatment is carried out in a continuous furnace, the upper part of the range specified is usually preferred, or even exceeded. |