| 牌号 | NiCr20TiAI |
|---|---|
| 2.4952 | |
| 对应标准 | NF EN 10269-1999
用于高温或低温条件下的紧固件用钢及镍合金 |
| 归类 | 镍及镍合金 |
| 密度 | 8.2 g/cm3 |
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交付条件下在高温下的最小屈服强度
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 NiCr20TiAI 2.4952 +AT+P d≤160 595 586 577 568 564 560 550 540 530 520 510 500 480
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交付条件下在高温下的最小抗拉强度
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 NiCr20TiAI 2.4952 +AT+P d≤160 1070 1044 1017 990 966 942 932 922 903 883 859 834 -
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低温最小冲击吸收能量（纵向）
Material designation Heat treatment
conditionDiameter
d
mmMinimum fracture energy in shock bending (in J) (ISO-V specimens) at a temperature (in ℃) of: Name Number -270 -196 -160 -140 -120 -110 -100 -90 -80 -70 -60 -50 -40 -20 0 +20 NiCr20TiAI 2.4952 +AT+P d≤160 - 20 - - - - - - - - - - - - - 20
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符合本欧洲标准的产品热处理指南
Material designation Heat treatment
conditionNormalizing,quenching
or solution annealing
temperature
°CType of
cooling①Tempering or
precipitation
treatment (and time)
°C①Name Number NiCr20TiAI 2.4952 +AT+P 1050 to 1080 a 840 to 860,24 h,a)
+
690 to 710,16 h,a)◎ 根据原件相关规定，如果允许矫直后消除应力，应选择消除应力的温度，以获得规定的性能。 ① a=air; o=oil; w=water
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物理性能
各温度°C时静态弹性模量 20°C与各温度间热膨胀系数 热导率 比热容 电阻率 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 216 212 208 202 196 189 179 161 130 12.9 13.4 13.8 14.3 14.7 15.2 13 460 n.a. n.a.: no values available
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蠕变性能
Designation Temperature Strength for
1% (plastic)
creep strain ①Creep rupture
strength for ②Name Number °C 10000h 100000h 10000h 100000h 200000h NiCr20TiAI 2.4952 500 624 530 （745） 578 - 510 608 504 （711） 545 - 520 586 477 （680） 510 - 530 567 450 646 480 - 540 544 418 615 447 - 550 523 390 582 416 - 560 500 362 552 384 - 570 474 334 520 354 - 580 450 308 491 327 - 590 425 282 462 298 - 600 398 257 433 272 - 610 370 230 403 247 - 620 348 210 378 222 - 630 326 187 351 198 - 640 303 167 325 176 - 650 275 149 300 157 - 660 260 132 275 135 - 670 240 115 251 118 - 680 219 99 229 102 - 690 201 85 208 88 - 700 183 72 186 75 - 710 167 64 170 65 - 720 150 55 153 57 - 730 135 47 137 49 - 740 122 40 125 44 - 750 106 33 114 37 - 760 97 29 103 33 - 770 85 24 94 29 - 780 75 20 86 25 - 790 68 17 78 23 - 800 58 16 70 20 - ◎ 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.
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松弛性能
Material designation Temperature
℃for an
initial strain
∈A total
%Residual stress in N/mm2
after stressing duration forName Number 1000
h10000
h30000
hNiCr20TiAI 2.4952 450 0.15 280 266 256 500 271 250 234 510 269 245 228 520 266 239 221 530 263 232 213 540 259 225 205 550 255 218 196 560 249 209 187 570 244 201 176 580 238 193 166 590 231 183 155 600 224 174 144 610 216 163 133 620 208 153 121 630 200 141 108 640 190 129 96 650 0.15
to
0.2181 119 85 660 170 107 75 670 160 97 65 680 149 88 56 690 138 79 48 700 127 70 40 710 117 61 33 720 107 53 27 730 97 45 22 740 88 38 17 750 79 31 13 ◎ 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.
注：数据仅供参考！如有疑问，请填写"我要纠错"！