CuNi resistance heating alloy

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CuNi resistance heating alloy
Posting date : Feb 17, 2011
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74-
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合金名称 (Alloy Nomenclature) 性能(Performance) 1Cr13Al4 0Cr25Al5 0Cr21Al6 0Cr23Al5 0Cr21Al4 0Cr21Al6Nb 0Cr27Al7Mo2 主要化学成份(Main Chemical composition) Cr 12.0-15.0 23.0-26.0 19.0-22.0 20.5-23.5 18.0-21.0 21.0-23.0 26.5-27.8 Al 4.0-6.0 4.5-6.5 5.0-7.0 4.2-5.3 3.0-4.2 5.0-7.0 6.0-7.0 Re 适量opportune opportune opportune opportune opportune opportune opportune Fe 余量 Rest Rest Rest Rest Rest Rest Rest Nb0.5 Mo1.8-2.2 元件最高使用温度 C (Max. continuous service temp. of element) 950 1250 1250 1250 1100 1350 1400 电阻率20 C (μΩ m) (Resistivity at 20 C) 1.25 1.42 1.42 1.35 1.23 1.45 1.53 密度 (g/cm3) (Density) 7.40 7.10 7.16 7.25 7.35 7.10 7.10 导热系数(KJ/m h C) (Thermal conductivity) 52.7 46.1 63.2 60.2 46.9 46.1 45.2 线胀系数(α×10-6/C) (Coefficient of lines expansion) 15.4 16.0 14.7 15.0 13.5 16.0 16.0 熔点约值( C) (Melting point (approx.)) 1450 1500 1500 1500 1500 1510 1520 抗张强度(N/mm2) (Tensile strength ) 580-680 630-780 630-780 630-780 600-700 650-800 680-830 延伸率(%) (Elongation at rupture) >16 >12 >12 >12 >12 >12 >10 断面收缩率(%) (Variation of area) 65-75 60-75 65-75 65-75 65-75 65-75 65-75 反复弯曲数(F/R) (Repeat Bending frequency) >5 >5 >5 >5 >5 >5 >5 硬度(H.B.) (Hardness) 200-260 200-260 200-260 200-260 200-260 200-260 200-260 持续使用时间(Hours/ C)(continuous service time) -- ≥80/1300 ≥80/1300 ≥80/1300 ≥80/1250 ≥50/1350 ≥50/1350 显微组织 (Micrographic structure) 铁素体Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite Ferrite 磁性 (Magnetic properties) 磁性Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic Magnetic

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