预热200℃ 6 465.2 8.6 1440未断S >30~50±0.3>3~20±10%2力学性能标准牌号抗拉强度(MPa)屈服强度(MPa)伸长率(%)硬度GB308710335~475≥195≥24/20410~550≥245≥20/GB531020G410~550≥245≥24/20MnG≥415≥240≥22/25MnG≥485≥275≥20/15CrMoG440~640≥235≥21/12Cr2MoG450~600≥280≥20/12Cr1MoVG470~640≥255≥21/12Cr2MoWVTiB540~735≥345≥18/10Cr9Mo1VNb≥585≥415≥20/ASME SA210SA210A-1≥415≥255≥30≤143HBSA210C≥485≥275≥30≤179HBASME SA213SA213 T11≥415≥205≥30≤163HBSA213 T12≥415≥220≥30≤163HBSA213 T22≥415≥205≥30≤163HBSA213 T23≥510≥400≥20≤220HBSA213 T91≥585≥415≥20≤250HBSA213 T92≥620≥440≥20≤250HBDIN17175ST45.8/Ⅲ410~530≥255≥21/15Mo3450~600≥270≥22/13CrMo44440~590≥290≥22/10CrMo910480~630≥280≥20/3化学成分标准牌号化学成分(%) CSiMnPSCrMoCuNiVAlWTiNbN GB3087100.07~0.130.17~0.370.38~0.65≤0.030≤0.0300.3~0.65/≤0.25≤0.30// 200.17~0.230.17~0.370.38~0.65≤0.030≤0.0300.3~0.65/≤0.25≤0.30// GB531020G0.17~0.240.17~0.370.35~0.65≤0.030≤0.030≤0.25≤0.15≤0.20≤0.25≤0.08 20MnG0.17~0.240.17~0.370.70~1.00≤0.030≤0.030≤0.25≤0.15≤0.20≤0.25≤0.08 25MnG0.18~0.240.17~0.370.80~1.10≤0.030≤0.030≤0.25≤0.15≤0.20≤0.25≤0.08 15CrMo0.12~0.180.17~0.370.40~0.70≤0.030≤0.0300.80~1.100.40~0.55≤0.20≤0.30 12Cr2MoG0.08~0.15≤0.500.40~0.70≤0.030≤0.0302.00~2.500.90~1.20≤0.20≤0.30 12Cr1MoV0.08~0.150.17~0.370.40~0.70≤0.030≤0.0300.90~1.200.25~0.35≤0.20≤0.300.15~0.30 12Cr2MoWVTiB0.08~0.150.45~0.750.45~0.65≤0.030≤0.0301.60~2.100.50~0.65≤0.20≤0.300.28~0.42 0.30~0.550.08~0.15B 0.002~0.008 10Cr9Mo1VNb0.08~0.120.20~0.500.30~0.60≤0.020≤0.0108.00~9.500.85~1.05≤0.20≤0.400.18~0.25≤0.015 0.06~0.100.03~0.07ASME SA210SA210A-10.13~0.19≥0.10.45~0.65≤0.030≤0.030 SA210C0.18~0.24≥0.10.80~1.10≤0.030≤0.030 ASME SA213SA213 T110.05~0.150.50~1.00.30~0.60≤0.030≤0.0301.00~1.500.50~1.00 SA213 T120.05~0.15≤0.500.30~0.61≤0.030≤0.0300.80~1.250.44~0.65 SA213 T220.05~0.15≤0.500.30~0.60≤0.030≤0.0101.90~2.600.87~1.13 SA213 T230.04~0.10≤0.500.10~0.60≤0.030≤0.0301.90~2.600.05~0.30 ≤0.0301.45~1.75B 0.0005~0.0060.02~0.08≤0.040SA213 T910.08~0.120.20~0.500.30~0.60≤0.020≤0.0108.00~9.500.85~1.05 ≤0.400.18~0.25≤0.015 0.06~0.100.03~0.07SA213 T920.07~0.13≤0.500.30~0.60≤0.020≤0.0108.50~9.500.30~0.60 ≤0.400.15~0.25≤0.0151.50~2.00B 0.001~0.0060.04~0.090.03~0.07DIN 17175ST45.8/ Ⅲ≤0.210.10~0.350.40~1.20≤0.040≤0.040 15Mo30.12~0.200.10~0.350.40~0.80≤0.035≤0.035 0.25~0.35 13CrMo440.10~0.180.10~0.350.40~0.70≤0.035≤0.0350.70~1.100.45~0.65 10CrMo9100.08~0.15≤0.500.30~0.70≤0.025≤0.0202.00~2.500.90~1.10≤0.30≤0.30 ≤0.015 合金管理论计算:(外径-壁厚)*壁厚*0.02483=每米的重量。u德清县 屈服点具有屈服现象的金属材料,试样在拉伸过程中力不增加(保持恒定)仍能继续伸长时的应力,称屈服点。若力发生下降时,公司12Cr1MoVG高压锅炉管,15CrMoG高压合金管,P22合金管P91合金管质量好价格低,材质繁多,质优价廉,现货提供.则应区分上、下屈服点。屈服点的单位为N/mm2(MPa)。 5 354.8 120未断Z营口 4用途高压合金管高压合金管高压合金管具有中空截面,大量用作输送流体的管道,如输送石油、天然气、煤气、水及某些固体物料的管道等。合金钢管与圆钢等实心钢材相比,在抗弯抗扭强度相同时,重量较轻,合金钢管是一种经济截面钢材,德清县高压合金管,广泛用于制造结构件和机械零件,如石油钻杆、汽车传动轴、自行车架以及建筑施工中用的钢脚手架等。用合金钢管制造环形零件,可提高材料利用率,简化制造工序,节约材料和加工工时,如滚动轴承套圈、千斤顶套等,目前已广泛用钢管来制造。合金钢管还是各种常规武器不可缺少的材料,枪管、炮筒等都要钢管来制造。合金钢管按横截面积形状的不同可分为圆管和异型管。由于在周长相等的条件下,圆面积大,用圆形管可以输送更多的流体。此外,专门从事产品销售,再生资源销售业务,销售业务包括:12Cr1MoVG高压锅炉管,15CrMoG高压合金管,P22合金管,P91合金管.圆环截面在承受内部或外部径向压力时,受力较均匀,因此,绝大多数钢管是圆管。Pp ③T91焊后热处理前,德清县无缝钢管,必须冷却至100~150 ℃,德清县P91合金管,保温1 h;回火温度730~780 ℃,保温时间不少于1 h。 5.锅炉钢管采用钢号(1)优质碳素结构钢钢号有20G、20MnG、25MnG。
3 T91焊接时存在的问题d 4锅炉管的用途①一般锅炉管主要用来制造水冷壁管、沸水管、过热蒸汽管、机车锅炉用的过热蒸汽管,专业供应12Cr1MoVG高压锅炉管,15CrMoG高压合金管,P22合金管P91合金管各种材质规格库存,质优价廉,公司销售实力雄厚,定货方便快捷.大、小烟管及拱砖管等。B API SPEC5CT-1999( 套管和油管规范),是美国石油学会(American Petreleum Instiute 简称"API")编制并发布的在世界各地通用。其中: 套管:由地表面伸进钻井内,专业销售12Cr1MoVG高压锅炉管,15CrMoG高压合金管,P22合金管,P91合金管性能稳定、安全、可靠、可实现免维护,技术水平已达到国内领先水平,达到国际同类产品先进水平.作为井壁衬的管子,其管子之间通过接箍连接。主要材质为J55、N80、P110等钢级,以及抗硫化氢腐蚀的C90、T95等钢级。其低钢级(J55、N80)可为焊接钢管。油管:由地表面插入套管内直至油层的管子,专业销售12Cr1MoVG高压锅炉管,15CrMoG高压合金管,P22合金管P91合金管,销售设备先进,品种资质齐全,欢迎广大客户前来咨询选购.其管子之间通过接箍或整体连接。其作用于是抽油机将油层石油经油管输送到地面。主要材质为J55、N80、P110、以及抗硫化氢腐蚀的C90、T95等钢级。其低钢级(J55、N80)可为焊接钢管。B设备维修 预热250℃ 9 539 8.2 1440未断bC V 0.18-0.25 ②插销试验表明,T91钢有较大冷裂倾向,选取预热200~250 ℃,层间温度200~300 ℃,可有效防止冷裂纹产生。
8规格合金规格表单位:Kg/m 壁厚 外径33.544.555.56322.1462.4602.7623.0523.3293.5943.847382.5892.9783.3543.7184.0694.4084.735422.8853.3233.7494.1624.5624.9515.327453.1073.5824.0444.4954.9325.3585.771503.4774.0144.5385.0495.5496.0366.511543.7734.3594.9325.4936.0426.5787.103573.9954.6185.2285.8266.4126.9857.546604.2174.8775.5246.1596.7827.3927.99063.54.4765.1795.8696.5487.2147.8678.508684.8095.5676.3137.0477.7688.4779.174704.9575.7406.5117.2698.0158.7499.470735.1795.9996.8077.6028.3859.1569.914765.4016.2587.1037.9358.7559.56310.358896.3637.3808.3859.37810.35811.32612.2811087.7689.02010.25911.48612.70113.90315.09313311.17812.72514.26115.78317.29418.79215913.42215.29017.14618.98920.82122.63921918.60121.20923.80526.38828.95931.51727323.26226.53629.79733.04636.28339.50832527.75031.66535.56839.45843.33747.20235538.89743.15847.40651.641 37741.33945.87150.39054.897 42646.77751.91357.03662.147 450 480 530 630 单位:Kg/m 壁厚 外径6.5788.591012324.088 385.049 425.691 456.172 506.9737.4238.2868.699 547.6148.1149.0759.538 578.0958.6329.66710.167 608.5769.14910.25910.796 63.59.1379.75410.95011.529 689.85810.53011.83812.473 7010.17910.87612.23212.89213.53914.79717.1647310.66011.39412.82413.52114.20515.53718.0527611.14111.91213.41614.15014.87116.27718.9408913.22514.15615.98116.87517.75619.48322.78710816.27017.43619.72920.85821.97324.16828.41013320.27821.75124.66226.09827.52230.33435.80915924.44626.24029.79131.54833.29336.74643.50321934.06436.59841.62944.12646.61051.54361.25927342.72045.92052.28355.44558.59664.86077.24032551.05654.89762.54266.34670.13777.68492.62935555.86560.07668.46072.63476.79685.082101.50737759.39163.87372.80177.24681.67990.508108.01842667.24672.33282.46887.51892.555102.592122.51945071.09376.47587.20392.54997.882108.511129.62148075.90281.65493.12298.837104.540115.909138.49953083.91790.286102.987109.319115.638128.240153.29663099.947107.549122.716130.281137.833152.90218216Mn规格表规格数量规格数量规格数量规格数量规格数量规格数量406*1612457*3220508*8020530*2210660*8020820*5556406*1714457*3525508*9020530*2520660*9020820*6052406*1814457*4020508*10020530*2815660*10020820*7054406*1914457*4525530*1630610*3020660*15020820*8050406*2014457*5015530*1720610*3210710*2030820*9065406*2214457*5520530*1820610*3510710*2215820*10062406*2518457*6020530*1920610*4010710*2520820*15061406*2820457*6515530*2030610*4510710*2815820*20063406*3025457*7020530*2220610*5020710*3020864*4075406*3225457*8020530*2530610*5515710*3215864*5578406*3525457*9025530*2830610*6015710*3515864*6079406*4025457*10020530*3020610*6510710*4020864*7081406*4550480*1650530*3230610*7060710*4520864*8089406*5028480*1715530*3520610*8010710*5020864*9085406*5525480*1815530*4020610*9010710*5515864*10025406*6020480*1930530*4520610*10015710*6025864*15036406*6525480*2020530*5020610*15015710*6530864*20023406*7020480*2220530*5525630*1815710*7060900*6068406*8025480*2520530*6025630*1915710*8030900*7023406*9020480*2820530*6560630*2010710*9030900*8035426*1625480*3025530*7030630*2225710*10054900*9039426*1725480*3215530*8060630*2515710*15050900*10069426*1820480*3515530*9030630*2815720*2565900*150809合金钢管用途合金钢管主要用途是用于电厂,核电,高压锅炉,高温过热器和再热器等高压高温的管道上及设备上,它是采用优质碳素钢,合金结构钢和不锈耐热钢做材质,经热轧(挤、扩)或冷轧(拔)而成。安装j ④钒与铌都是强碳化物形成元素,加入后能与碳形成细小而稳定的合金碳化物,有很强的弥散强化效果。U 锅炉管20G是用于制造高压及其以上压力的水管锅炉受热面用的优质碳素钢、合金钢和不锈耐热钢无缝钢管。 GB/T8163-2008( 输送流体用无缝钢管)。主要用于工程及大型设备上输送流体管道。代表材质(牌号)为20、Q345等。a德清县 2.2 热处理工艺gH 合金 管尺寸及允许偏差7用途分类偏差等级标准化外径允许偏差D1±1.5% ,小±0.75 mmD2±1.0% 。小±0.50 mmD3±0.75% .小±0.30 mmD4±0.50% 。小±0.10 mm合金管主要用于低中压锅炉(工作压力一般不大于5.88Mpa,工作温度在450℃以下)的受热面管子;专业销售12Cr1MoVG高压锅炉管,15CrMoG高压合金管,P22合金管,P91合金管保证质量,保证服务.保证品质.您的满意,是我们的追求!欢迎来电咨询.用于高压锅炉(工作压力一般在9.8Mpa以上,工作温度在450℃~650℃之间)的受热面管子、省煤器、过热器、再热器、石化工业用管等. 5 T91钢在广东省内火电厂应用实例