GH4698高温合金 GH4698是2113Ni-Cr基沉淀硬化型变形高温合金,使用温度750℃~800℃。该合金是GH4033合金的基础上发展而成的,与GH4033合金相比,提高了铝和钛含量,添加了铌和钛,降低了铬含量。合金在550℃~800℃范围内具有高的持久强度和拉伸强度,良好的塑性和综合性能,及长期使用组织稳定。适合制作发动机涡轮盘、压气机盘等承载零件。主要产品有热轧和锻制5261棒材、盘件和环件。 GH4698化学成分 GH4698热处理 GH4698应用特性 GH4698机械性能GH4698 化学 成分: 碳 C:≤0.08,,, 硅 Si:≤0.6,,, 锰 Mn:≤0.4,,, 磷 P≤:0.015,,, 硫 S≤:0.007,,, 铬 Cr:13.00-16.00,,, 镍 Ni:余量,,, 钼 Mo:2.80-3.20,,, 锌 Zr:≤0.05,,, 铜 Cu:≤0.07,,, 铁 Fe≤2.0,,, 铌 Nb:1.80-2.20,,, 硼 B:≤0.005,,, 钛 Ti:2.35-2.75,,, 铝 Al:1.3-1.7,,, 镁 Mg:≤0.008,,, 钨 W:4.30-5.20,,, 铈 Ce:≤0.005,,,GH4698 应用特性GH4698该合金在经过650-750摄氏度,100H-1000H长期时效后,组织和性能稳定,无有害相 析出。用于制作发动机涡轮,盘、压气机盘、导流片、承力环和紧固件等。 GH4698机械 性能: GH4698密度:8.32 g/cm3; GH4698熔化温度范围:1340℃~1365℃; GH4698磁性能:合金无磁性;GH4698供货规格: 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。GH4698标准热处理制度为:1、锻件,(1110~1130)℃×(8~8.5)h/AC﹢(990~1010)℃×(4~4.5)h/AC﹢(765~785)℃×(16~16.5)h/AC;2、盘形锻件,1120℃±10℃×8h/AC﹢1000℃±10℃×4h/AC﹢775℃±10℃×16 h/AC;3、紧固件棒材,(1110~1130)℃×8h/ AC﹢1000℃±10℃×4h/AC﹢775℃±10℃×16 h/AC;4、燃气轮机用热轧和锻制棒材、锻制圆饼、模锻件,1、(1110~1120)℃×8h/ AC﹢1000℃±10℃×4h/AC﹢775℃±10℃×16 h/AC ﹢700℃±10℃×16 h/AC;2、(1110~1120)℃×8h/ AC﹢1000℃±10℃×4h/AC﹢775℃±10℃×16 h/AC。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%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=1630741204921&bpp=14&bdt=313&idt=247&shv=r20210831&mjsv=m202109010101&ptt=9&saldr=aa&cookie=ID%3D3c1e659c5ad21469-224a96634ecb002a%3AT%3D1630723652%3ART%3D1630723652%3AS%3DALNI_MZ_a51D8ufX4H5rA7sRv5eTVTyvXw&nras=1&correlator=121383247702&frm=23&ife=1&pv=1&ga_vid=1453928911.1630741205&ga_sid=1630741205&ga_hid=396979806&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=18&u_nmime=37&adx=-12245933&ady=-12245933&biw=1295&bih=597&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=44747620%2C31062297&oid=3&pvsid=2523983727424171&pem=500&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php&eae=2&fc=1920&brdim=0%2C0%2C0%2C0%2C1360%2C0%2C1360%2C728%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32772&bc=31&ifi=1&uci=1.9gcfwe9c2nnh&fsb=1&dtd=280" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.9gcfwe9c2nnh" data-load-complete="true"> |