牌號(hào) | X2CrTiNb18 |
1.4509 | |
對(duì)應(yīng)標(biāo)準(zhǔn) | NF EN 10028-7-2008
壓力容器用不銹鋼扁平產(chǎn)品 Flat products made of steels for pressure purposes - Part 7 : stainless steels |
歸類 | 鐵素體不銹鋼 |
Material designation | Heat treatment condition | Minimum 0.2% proof strength Rp0.2,MPa at a temperature (in°C) of: | ||||||||
Name | Number | 50① | 100 | 150 | 200 | 250 | 300 | 350 | 400 | |
X2CrTiNb18 | 1.4509 | +A | 242 | 230 | 220 | 210 | 205 | 200 | 180 | - |
① Determined by linear interpolation. |
Material designation | Hot forming | Heat treatment symbol | Anneailing | |||
Name | Number | Temperature ℃ | Type of cooling | Temperature① ℃ | Type of cooling | |
X2CrTiNb18 | 1.4509 | 1100 to 800 | air | +A | 870 to 930 | air,water |
◎ a=air; o=oil; w=water. ◎ The temperatures of annealing should 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. |