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Actanium n
archit. 镍铬钻低膨胀合金 (钻 40%, 镍 15. 5%, 铬 20%, 铁 15%, 钼 7%, 锰 2%, 碳 0. 15%, 铍 0.03%)
lat. 镍铬钻低膨胀合金钻40%,铬20%,镍15.5%, 铁 15%,钼7%,锰2%,碳0. 15%,铍0.03%
met. 阿克坦尼姆镍铬钴低膨胀合金 (40Co, 20Cr, 15.5Ni, 15Fe, 7Mo, 2Mn,0.15C,0.03Be)
tech. 镍铬钴低膨胀合金