| 牌號(hào) | X6CrNiTiB18-10 |
|---|---|
| 1.4941 | |
| 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(lèi) | 奧氏體不銹鋼 |
| 標(biāo)簽 | 抗蠕變等級(jí) |
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高溫下的最小屈服強(qiáng)度
Material designation Heat treatment
conditionMinimum 0.2% proof strength Rp0.2,MPa
at a temperature (in°C) of:Name Number 50① 100 150 200 250 300 350 400 450 500 550 600 X6CrNiTiB18-10 1.4941 +AT 186 162 152 142 137 132 127 123 118 113 108 103 Minimum 1.0% proof strength Rp1.0,MPa
at a temperature (in°C) of:50① 100 150 200 250 300 350 400 450 500 550 600 225 201 191 181 176 172 167 162 157 152 147 142 ① Determined by linear interpolation. -
高溫下的最小抗拉強(qiáng)度
Material designation Minimum tensile strength Rm,MPa
at a temperature (in°C) of:Name Number 50① 100 150 200 250 300 350 400 450 500 550 600 X6CrNiTiB18-10 1.4941 460 410 390 370 360 350 345 340 335 330 320 300 ① Determined by linear interpolation. -
熱處理指南
Material designation Hot forming Heat
treatment
symbolSolution anneailing
①②Post weld heat
treatment
Creep resisting steelsName Number Temperature
℃Type of
coolingTemperature
℃ ③④Type of
coolingTemperature
℃ ⑥Type of
coolingX6CrNiTiB18-10 1.4941 1150 to 850 air +AT 1050 to 1110 water,air ⑤ 900 to 950 ⑦ air ◎ a=air; o=oil; w=water.
◎ Scale and annealing colours produced during hot forming, heat treatment or welding may adversely affect the corrosion resistance. They should be removed as far as possible before use, e.g. by pickling.
◎ The temperatures of annealing should be agreed for simulated heat treated test pieces.
① The solution treatment may be omitted if the conditions for hot working and subsequent cooling are such that the requirements for the mechanical properties of the product and the resistance to intergranular corrosion as defined in EN ISO 3651-2 are obtained and provided these requirements are met even after appropriate subsequent solution annealing.
② Re-crystallizing annealing.
③ If heat treatment is carried out in a continuous furnace, the upper part of the range specified is usually preferred, or even exceeded.
④ The lower end of the range specified for solution annealing should be aimed at for heat treatment as part of further processing,because otherwise the mechanical properties might be affected. If the temperature of hot forming does not drop below the lower temperature for solution annealing.a temperature of 980℃ is adequate as a lower limit for Mo-free steels,a temperature of 1000℃ for steels with Mo contents up to 3% and a temperature of 1020℃ for steets with Mo contents exceeding 3%.⑤ cooling sufficiently rapid.
⑥ Minimum holding time:30min.
⑦ Recommended for components with greater wall thickness.
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蠕變性能
Designation Heat treatment
conditionTemperature Strength for rupture in MPa for ① Name Number °C 10000h 30000h 50000h 100000h 150000h 200000h 250000h X6CrNiTiB18-10 1.4941 +AT 550 223 - - 170 - 150 - 560 210 - - 154 - 135 - 570 196 - - 140 - 122 - 580 182 - - 127 - 110 - 590 170 - - 114 - 100 - 600 156 - - 102 - 91 - 610 142 - - 92 - 82 - 620 130 - - 84 - 74 - 630 119 - - 76 - 67 - 640 108 - - 68 - 60 - 650 98 - - 62 - 54 - 660 89 - - 56 - 49 - 670 80 - - 50 - 43 - 680 73 - - 44 - 39 - 690 66 - - 39 - 33 - 700 60 - - 35 - 29 - ◎ Values were taken from DIN 17460 [3].
① Values in parantheses involved time and/or stress extrapolation; values with asterisk involved time extrapolation.
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