Q345qC/Q345qD/Q345qE桥梁钢 Q:桥梁用钢屈服强度的“屈”字的汉语拼音首位字母;345:规定最小屈服强度数值,单位MPa;q:桥梁用钢的“桥”字的汉语拼音首位字母;C、D、E:质量等级为C、D、E级。Q345qC冲击温度0度,Q345qD冲击温度-20度,Q345qE冲击温度-40度。 Q345qC、Q345qD、Q345qE是桥梁用结构钢,热轧材,Q345qC、Q345qD、Q345qE要求有较高的强度、韧性以及承受机车车辆的载荷和冲击,且要有良好的抗疲劳性、一定的低温韧性和耐大气腐蚀性。拴焊桥梁用钢还应具有良好的焊接性能和低的缺口敏感性。牌号:Q345Qc、Q345qD、Q345qEQ345qC、Q345qD、Q345qE执行标准:GB/T 714-2008Q345qC、Q345qD、Q345qE交货状态:热轧、正火(可要求探伤、Z向性能)Q345qC、Q345qD、Q345qE用途:建筑及桥梁Q345qC、Q345qD、Q345qE桥梁钢化学成分C≤0.2;Si≤0.55;Mn:0.9~1.7;P≤0.03;S≤0.025;Ni≤0.5;Cr≤0.8;Mo≤0.2;Cu≤0.55;Nb≤0.06;V≤0.08;Ti≤0.03;Als≥0.015;N≤0.012。成分备注:为改善性能,根据需要可添加Nb、V、Ti中一种或几种合金,若混合加入两种或两种以上时,总量≤0.12。Ceq = C+Mn/6+(Cr+Mo+V)/5+(Ni+Cu)/15Pcm=C+Si/30+(Mn+Cu+Cr)/20+Ni/60+Mo/15+V/10+5BQ345qC/Q345qD/Q345qE桥梁钢力学性能品种交货状态详情Q345qC/D/E-板,带,型钢(≤16)热轧,正火,其他ReL(MPa)≥345说明屈服不明显时,采用Rp0.2Rm(MPa)≥490说明A(%)≥20说明冲击温度0°C/-20°C/-40°C说明Akv(J)≥47说明纵向弯曲直径2a说明弯曲角度180说明性能说明钢板及钢带的拉伸试验横向取样,型钢的拉伸试验纵向取样;交货状态:热轧、控轧、正火或正火轧制、TMCP著作权归作者所有。商业转载请联系作者获得授权,非商业转载请注明出处。 公司销售;冷板,普板,锰板,高强板,合金板,容器板,耐候版,锅炉板,耐候板,耐磨板,桥梁板。各种材质和规格齐全。 规格范围:厚度8-650mm.宽度1500-4020mm.钢板是平板状,矩形的,可直接轧制或由宽钢带剪 钢板切而成。 电话;0372-2052518传真;0372-2052518小宋手机;18240615609 15690600038微信:18240615609邮箱;723485663@qq.com 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=3%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=1632721531076&bpp=3&bdt=66&idt=25&shv=r20210922&mjsv=m202109210101&ptt=9&saldr=aa&cookie=ID%3Dbbd881765977309b-22126e35f0cb008a%3AT%3D1632721113%3ART%3D1632721113%3AS%3DALNI_MbHf2DQf8yv9CNTH9q6yc450AVFwg&nras=1&correlator=2774875769013&frm=23&ife=1&pv=2&ga_vid=2105693068.1632721531&ga_sid=1632721531&ga_hid=434268520&ga_fc=0&nhd=1&u_tz=480&u_his=35&u_h=1080&u_w=1920&u_ah=1040&u_aw=1920&u_cd=24&adx=-12245933&ady=-12245933&biw=1872&bih=896&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=44750576%2C31062519%2C31062930&oid=3&pvsid=832585262471262&pem=431&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&eae=2&fc=1664&brdim=0%2C0%2C0%2C0%2C1920%2C0%2C1920%2C1040%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=32772&bc=31&ifi=1&uci=1.yccprz95x4tc&fsb=1&dtd=54" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="1.yccprz95x4tc" data-load-complete="true"> |