1、中华人民共和国国家标准UDC 669.296.5:621.039核工业用锆及锆合金铸锭GB8767-88Zirconium and zirconium alloyingots for nuclear application本标准适用于真空自耗电极电弧炉熔炼的锆及锆合金铸锭。该产品供生产核工业用加工材。1品种1.1铸锭的牌号包括:Zr01(Zr-0)、ZrSn1.4-0.1(Zr-2)和ZrSn1.4-0.2(Zr-4)。1.2铸锭切除集中缩孔部位后以机加工表面供货,两端面应加工成45的倒角。1.3铸锭的供货规格、重量及其允许偏差由供需双方协商确定。2技术要术2.1化学成分2.1.1铸锭的化学成
2、分应符合表1的规定。表1Zr0ZrSn1.4-0.1ZrSnl.4-0.2牌号(Zr-0)(Zr-2)(Zr-4)Zr基基主Sn1.201.701.201.70Fe0.070.200.180.24成Ni0.03-0.08化Cr0.050.150.070.13分Fe+Ni+Cr0.180.38学Fe+Cr0.280.37成Al0.00750.00750.0075B0.000050.000050.00005分Cd0.000050.000050.00005Co0.0020.0020.002Cu0.0050.0050.005Cr0.020%杂质含量,不大于Fe0.15Hf0.0100.0100.010M80.0020.0020.002Mn0.0050.0050.005Mo0.0050.0050.005中国有色金属工业总公司1988-02-04批准1989-02-01实施1