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2.4642 2.4642镍基合金含铬量27.0-31.0%，含镍量约为 59%的镍基合金，镍基合金具有优良的抗晶间腐蚀和抗晶间应力腐蚀开裂的能力，主要用于蒸汽发生器传热管材料。压水堆站蒸汽发生器传热管用材料经过了一个发展历程，包括304奥氏体不锈钢、600合金、800合金和690合金。对600合役中的腐蚀失效研究表明，晶间腐蚀和晶间应力腐蚀开裂是主要问题。690合金作为压水堆电站蒸汽发生器传热管材料。上海冶韩合金集团欢迎新老客户来电咨询!周工/TEL：1-3-8---1616---6343（v信同号）2.4642化学成分：C(％):≤0.05Si(％):≤0.50Mn(％):≤0.50Cr(％):27.0～31.0Ni(％):≥58.0Cu(％):≤0.50Fe(％):7.00～11.00其他(％):S≤0.0152.4642物理性能（退火）：密度：8.19g/cm3（克/立方厘米）。比热：450Joules/kg/°C(0-100°C)（焦/千克/摄氏度）。熔点：1377-1343°C。抗拉强度(MPA)RmN/mm2≥710。屈服强度（MPA)RP0.2N/mm2≥310。延伸率A5%≥35。布氏硬度（HB）≥82.4642镍基合金主要应用：镍基合金主要用于压水堆电站蒸汽发生器传热管材料，是蒸汽发生器的技术。在建和规划中的电站也都采用690合金作为蒸汽发生器传热管材料。LED">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" SANdbox="allow-forms allow-popUPS allow-popups-to-escape-sandbox allow-same-origin allow-scripts allow-top-navigation-by-user-activation" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A1024%2C2%3A1024%2C3%3A32%2C4%3A32%2C8%3A134217728%2C9%3A134250504%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=32.0.0*&pra=5&wgl=1&dt=1632453331100&bpp=7&bdt=181&idt=228&shv=r20210921&mjsv=m202109200201&ptt=9&saldr=aa&cookie=ID%3D3f04ba87c1396135-22a03d3ccecb0016%3AT%3D1632452078%3ART%3D1632452078%3AS%3DALNI_Mbqvt-_n2HQeVwobOG-eDOV7VfgNg&nras=1&correlator=7421418131209&frm=23&ife=1&pv=1&ga_vid=2041825702.1632453331&ga_sid=1632453331&ga_hid=1593581561&ga_fc=0&nhd=1&u_tz=480&u_his=8&u_h=768&u_w=1360&u_ah=728&u_aw=1360&u_cd=24&adx=-12245933&ady=-12245933&biw=1295&bih=597&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=31062518%2C31061690%2C44750532&oid=3&pvsid=2515539153900119&pem=843&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C1360%2C0%2C1360%2C728%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&alvm=r20210922&fu=32772&bc=31&ifi=1&uci=1.d7hvpgejytgd&fsb=1&dtd=248" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.d7hvpgejytgd" data-load-complete="true"> |