| 牌号 | X6CrNi18-10 |
| 1.4948 | |
| 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 | 奥氏体不锈钢 |
| 密度 | 7.9 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 X6CrNi18-10 1.4948 +AT d≤160 174 157 142 127 117 108 103 98 93 88 83 78 -
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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 X6CrNi18-10 1.4948 +AT d≤160 480 450 420 400 390 380 380 380 375 360 335 300 -
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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 X6CrNi18-10 1.4948 +AT d≤160 - 60 - - - - - - - - - - - - - 100
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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)
°CName Number X6CrNi18-10 1.4948 +AT 1000 to 1080 w,a② - ◎ 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 ② 快速冷却
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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 200 194 186 179 172 165 - - - 16.3 16.9 17.3 17.6 18.2 18.5 16 450 0.71
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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 X6CrNi18-10 1.4948 550 121 96 191 140 125 560 116 92 177 128 114 570 111 88 165 117 104 580 106 84 154 107 95 590 100 79 143 98 86 600 94 74 132 89 78 610 88 69 122 81 70 620 82 63 113 73 62 630 75 56 104 65 55 640 68 49 95 58 49 650 61 43 87 52 43 660 55 37 80 47 38 670 49 32 73 42 34 680 44 28 67 37 30 690 39 25 61 32 26 700 35 22 55 28 22 ◎ 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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