| 牌號 | X7CrNiMoBNb16-16 |
|---|---|
| 1.4986 | |
| 對應(yīng)標(biāo)準(zhǔn) | NF EN 10269-1999
用于高溫或低溫條件下的緊固件用鋼及鎳合金 |
| 歸類 | 奧氏體不銹鋼 |
| 密度 | 7.9 g/cm3 |
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交付條件下在高溫下的最小屈服強度
Material designation Heat treatment
conditionDiameter
d
mmMinimum 0.2%-proof strength Rp0.2 in MPa at a temperature (in°C) of: Name Number 50 100 150 200 250 300 350 400 450 500 550 600 650 X7CrNiMoBNb16-16 1.4986 +WW+P d≤100 489 470 451 432 412 393 372 353 334 314 284 255 206
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交付條件下在高溫下的最小抗拉強度
Material designation Heat treatment
conditionDiameter
d
mmMinimum tensile strength Rm in MPa at a temperature (in°C) of: Name Number 50 100 150 200 250 300 350 400 450 500 550 600 650 X7CrNiMoBNb16-16 1.4986 +WW+P d≤100 635 615 590 570 550 530 505 485 460 440 420 395 375
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符合本歐洲標(biāo)準(zhǔn)的產(chǎn)品熱處理指南
Material designation Heat treatment
conditionNormalizing,quenching
or solution annealing
temperature
°CType of
coolingTempering or
precipitation
treatment (and time)
°CName Number X7CrNiMoBNb16-16 1.4986 +WW+P ① - 750 to 800(5 to 1 h,a②) ◎ 根據(jù)原件相關(guān)規(guī)定，如果允許矯直后消除應(yīng)力，應(yīng)選擇消除應(yīng)力的溫度，以獲得規(guī)定的性能。 ① 750℃ - 850℃熱作 ② a=air; o=oil; w=water
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物理性能
各溫度°C時靜態(tài)彈性模量 20°C與各溫度間熱膨脹系數(shù) 熱導(dǎo)率 比熱容 電阻率 20 100 200 300 400 500 600 700 800 100°C 200°C 300°C 400°C 500°C 600°C 20°C 20°C 20°C GPa 10-6 K-1 W/m.K J/kg.K Ω.mm2/m 196 192 186 181 174 165 157 147 - 16.6 17.7 17.9 17.9 17.9 18.1 15 460 n.a. n.a.: no values available
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蠕變性能
Designation Temperature Strength for
1% (plastic)
creep strain ①Creep rupture
strength for ②Name Number °C 10000h 100000h 10000h 100000h 200000h X7CrNiMoBNb16-16 1.4986 580 358 302 381 323 - 590 336 278 364 298 - 600 324 255 344 275 - 610 306 230 325 251 - 620 287 204 306 228 - 630 268 179 287 204 - 640 247 153 267 181 - 650 226 128 245 157 - 660 204 104 221 133 - 670 182 85 198 113 - ◎ The values given in this table are the mean values of the scatter band so far obtained, which will be checked from time to time as further test results become available and if necessary corrected.
◎ * and () indicate values of extended stress extrapolation or time extrapolation, respectively.
① This is the stress relative to the initial cross- section leadina to a permanent elongation of 1 % after 10000 h and 100000 h.
② This is the stress relative to the initial cross- section leading to fracture after 10000 h, 100000 h and 200000 h.
注：數(shù)據(jù)僅供參考！如有疑問，請?zhí)顚?我要糾錯"！