GH4708高温合金研发GH4708生产分析介绍

 GH4708高温合金

一、GH4708介绍：

GH4708是Ni-Cr基沉淀硬化型变形高温合金，使用温度800摄氏度以下。合金加入铝、钛、钨、钼元素进行综合强化，使其具有较高的热强性。合金具有好的抗 氧 化性能、组织稳定，并具有满意的冷热加工成型和焊接能力。

二、GH4708应用和特性：

GH4708合金可用于850摄氏度以下工作的承力零件，如发动机安装边、偏心环、半环、封严环座、低压涡轮外环、喷嘴壳体、拉杆和底板。三、GH4708相近牌号：高温新名称高温旧名称耐蚀新名称耐蚀旧名称国标牌号GH4708GH708   日本JIS美标ASTM美 标UNS、SAE德标DIN欧洲EN     四、GH4708化学成分：碳C硅Si锰Mn磷P硫 S铬Cr0.05-0.1≤0.4≤0.5≤0.015≤0.01517.5-20镍Ni钼Mo钴Co铜Cu铁Fe铌Nb余4-6≤0.5-≤4-硼B钛Ti铝AlLa钨W铈Ce≤0.0081-1.41.9-2.3≤0.0155.5-7.5≤0.03五、GH4708材质规格：热扎棒10~100mm,锻制棒：100mm~350mm,冷扎薄板0.05mm-4.0mm,热扎板:4mm~14mm,带2mm-10mm,各尺寸规格锻件环件，库存个别牌号不定尺。六、GH4708物理性能：密度g/cm3磁性热导率/w/(m.k)100-800℃电阻率℃)/（Ω.mm2/m)100℃比热容℃)/kg/(kg.k)℃100-800℃线胀系数/(10-6/k)20-700℃8.55无10.4-23-0.398-0.62813.1温度0/℃20650800  弹性模量ED/GPa218.9187.7171.9  七、GH4708力学性能:品种热处理温度0/°C拉伸强度ΣbMPa≥延伸率A/%≥断面收缩Z/%≥热轧棒标准热处理2010801820七、GH4708加工处理和焊接性能:合金具有良好的焊接性能，可进行氩弧焊、钎焊等焊接。切削加工无特殊要求。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%3A32776%2C2%3A32776%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=1620282223538&bpp=4&bdt=199&idt=265&shv=r20210504&cbv=%2Fr20190131&ptt=9&saldr=aa&cookie=ID%3D291846eb031c7b75-225488dfacc700fb%3AT%3D1619775504%3ART%3D1619775504%3AS%3DALNI_MbwSZhVJSyAVnKsp3VZHCvY7oon3A&nras=1&correlator=7203827870398&frm=23&ife=1&pv=1&ga_vid=1032306788.1620282224&ga_sid=1620282224&ga_hid=721337976&ga_fc=0&nhd=1&u_tz=480&u_his=7&u_java=0&u_h=768&u_w=1360&u_ah=728&u_aw=1360&u_cd=24&u_nplug=15&u_nmime=33&adx=-12245933&ady=-12245933&biw=1295&bih=597&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&oid=3&pvsid=3467636331832399&pem=877&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&fu=4&bc=31&ifi=1&uci=1.o2cyotrxalst&fsb=1&dtd=282" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.o2cyotrxalst" data-load-complete="true">