GH4738高温合金钢板成分性能

 咨询︰①⑦③○①⑧⑥⑧⑦⑥③(微信同号)

GH4738介绍：

GH4738是Ni-Cr-Co基沉淀硬化型变形高温合金，使用温度小于815摄氏度。合金加入铬、钼和钴元素进行固溶强化，加入铝、钛元素形成沉淀强化相，加入硼、锆元素净化和强化晶界。合金有良好的高温强度。合金具有较高的耐热腐蚀性能和抗 氧 化性能，加工塑性良好和***性能稳定。GH4738应用和特性：GH4738应用于航空、航天、石油、化工及发电等设备旋转部件等领域，如气压机叶片、涡轮,盘和大型螺栓等。合金在650-815摄氏度内的缺口持久表明，该合金无缺口敏***。合金在时效后无新相析出，***稳定。牌号：GH4738  化学成分(%)C： ≤0.03~0.10Si： ≤0.15Mn： ≤0.1S： ≤0.015P： ≤0.015Cr： 18.0~21.0Ni： 基Fe： ≤2.0Cu： ≤0.1V： —Mo： 3.5~5.0Ti： 2.75~3.25Al： 1.2~1.6其他： Co：12~15B：0.003~0.01Zr：0.02~0.08 物理性能/力学性能密度  8.22g/cm3熔点  1330-1360℃抗拉强度  1276σb/MPa屈服强度   780σp0.2/MPa延伸率     26σ5 /%收缩率    31φ/ %GH4738加工处理和焊接性能:合金焊接较为困难，可采用***弧焊焊接。一般在固溶状态下焊接并采用同种合金作为焊丝。热处理后的焊缝高温强度比母材热处理后的强度稍低，因此焊缝不应处于高应力部位。焊后的部件需再此进行固溶处理。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" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A1081352%2C2%3A1081352%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=0&pra=5&wgl=1&dt=1618456184142&bpp=12&bdt=M&idt=63&shv=r20210413&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3Df43b826f12745ccd-2268431f63c700b7%3AT%3D1618380579%3ART%3D1618380579%3AS%3DALNI_MamEblcYoWowg_oAMi_al7xjlPzyQ&nras=1&correlator=36445799477&frm=23&ife=1&pv=2&ga_vid=386260575.1618456184&ga_sid=1618456184&ga_hid=1690574517&ga_fc=0&nhd=1&u_tz=480&u_his=13&u_java=0&u_h=1080&u_w=1920&u_ah=1040&u_aw=1920&u_cd=24&u_nplug=0&u_nmime=0&adx=-12245933&ady=-12245933&biw=1209&bih=937&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=42530671%2C44735932%2C44740079&oid=3&pvsid=1274092053205229&pem=127&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1920&brdim=703%2C0%2C703%2C0%2C1920%2C0%2C1221%2C1045%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=4&bc=31&ifi=1&uci=1.hmqy6nwzdrtp&fsb=1&dtd=139" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.hmqy6nwzdrtp" data-load-complete="true" frameborder="0">