2025-09-05 02:13:02 4J54精密合金国标密度是多少?
4J54(国标)密度8.1g/cm³,Ni54%Fe,高温封装用,执行GB/T14986。密度偏差≤0.05g/cm³,400℃膨胀系数5.2×10⁻⁶/℃,适配封装尺寸稳定。...
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4J54(国标)密度8.1g/cm³,Ni54%Fe,高温封装用,执行GB/T14986。密度偏差≤0.05g/cm³,400℃膨胀系数5.2×10⁻⁶/℃,适配封装尺寸稳定。...
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UNSK94100(国军标)密度8.1g/cm³,Fe-Ni-Co-Mo,集成电路封装用,执行GJB1928。密度偏差≤0.05g/cm³,膨胀系数5.3×10⁻⁶/℃,适配封装重量精度。...
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1J22棒材硬度HB280-320,Fe-Co-V,军工电磁铁用,执行GJB1928。经1100℃固溶+510℃时效,饱和磁感应强度2.4T,适配强磁耐磨场景。...
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4J42(国军标)抗拉强度≥580MPa,延伸率≥20%,Ni42%Fe,电子封装用,执行GJB1928。400℃力学性能保持率≥90%,膨胀系数4.2×10⁻⁶/℃。...
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C71000板材硬度HB180-220,Ni15%Fe1.6%,船舶管件用,执行ASTMB151。经650℃退火,耐海水腐蚀0.003mm/a,抗拉强度≥345MPa,适配海洋耐磨。...
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