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现行 GB/T 2938-2008
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低热微膨胀水泥 Low heat expansive cement
发布日期: 2008-01-09
实施日期: 2008-08-01
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现行
GB/T 2938-2008e
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合金 薄板和带材42Fe-37.5Ni-14Co-4.8Cb(Nb)-1.6Ti固溶热处理 沉淀硬化多次熔化 高温 低膨胀
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铁镍合金 耐腐蚀耐热 焊丝41Fe-37.5Ni-14Co-4.8Cb(Nb)-1.5Ti真空熔炼 低膨胀(稳定:2017年6月)
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耐腐蚀和耐热合金 棒材、锻件和环34Co-3.0Cr-28Ni-3.0Cb(Nb)-5.5Al-0.008B-25.5Fe多熔 高温 抗氧化 低膨胀固溶热处理 沉淀硬化
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铁镍合金、棒材、锻件和环42Fe-37.5Ni-14Co-4.8Cb(Nb)-1.6Ti固溶热处理、沉淀硬化、多次熔化、高温、低膨胀
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铁镍合金、棒材、锻件、环及环、锻件和镦粗用坯料42Fe-37.5Ni-14Co-4.8(Cb+Ta)(Nb+Ta)-1.6Ti固溶热处理、短时沉淀硬化、多次熔融、高温、低膨胀
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