配管设计W表.doc

表2 管螺纹与英制管外径的配用 DN管螺纹ISO7 / 1 (GB7306)ASME B 1.20.1(GB12716)钢管外径 mm6576.173125139.7141.3150165.1168.3表4 外径与承插口内径 mmNPSDN外径外径正偏差GB8163承插口内径(最小)ASMEB36.10ISO4200HG20553SH3405ASME B16.11GB 14383SH 34103/81017.117.2170.4017.5517.51/21521.321.3220.4021.721.822.53/42026.726.9270.4027.0527.427.512533.433.7340.4533.834.234.51 1/43242.242.4420.4542.5542.942.71 1/24048.348.3480.4548.6548.848.825060.360.3600.6061.1061.160.8表6 ISO42001985 壁厚级差数值 mm0.50.60.81.01.21.41.61.82.02.32.62.93.23.64.04.55.05.45.66.37.18.08.8101112.514.21617.52022.2252830323640455055 6065 表7 壁厚计算值(分子)管表号对应值(分母) mmDN外径Sch.40Sch.80Sch.1602533.43.304.075.593.384.556.355060.33.925.308.053.915.548.742002197.5512.5522.568.1812.7023.0160060916.4630.3858.2217.4830.9659.54 表8 两种壁厚选用方法的规格数量比较DN（壁厚范围，mm）管表号+重量系列整数（10mm,0.5mm级差）碳钢不锈钢碳钢不锈钢50 (1.6511.07)6 (4)61818100(2.1117.12)8 (5)82323300(3.9633.32)14(12)143636注：括号内为实际使用规格数量。 表9 壁厚Std.以下,两种壁厚选用方法的常用规格数量比较DN (壁厚范围,mm)管表号+重量系列整数(10mm,0.5mm级差)CSSSCSSS50 (1.653.91)1 (Std.)2 (Sch10S、Std.)66100(2.116.02)1 (Std.)2 (Sch10S、Std.)99300(3.969.53)3 (Sch20、30、Std.)4 (Sch10S、20、30、Std.)1313表12 常用板焊管的承压能力材料常温许用应力 MPa焊接质量系数常温许用应力与焊接质量系数乘积折扣率Q235B1250.851060.8520R20g1331.01331.060.91200.96L2451380.951241.016MnDR1631.01631.3015CrMoR1501.01501.2012Cr2Mo1R1721.01721.383043213471381.01381.100.91241.00.851170.94304L316L1151.01150.920.91040.83 表16碳钢与Cr-Mo合金钢的许用应力 MPa材料温度 20350400450500550575600650L24513811889633213101Cr0.5Mo138110107103884026187.41.25 Cr0.5Mo138106102977737251882.25 Cr1Mo1381231231197848352499 Cr1MoV195187177165147110896529注:取自ASME B31.3表19 双相不锈钢成份和奌蝕指数PRENCCrMoNiCuNSi抗拉屈服PREN3290.08261.54.562048515313RE600.0318.52.74.91.7630440302822050.0322350.080.2620450253423040.032340.050.2670450402525070.0325470.240.328005501540316L0.03162114851704024904L0.02204.525160026050356Mo0.02206180.80.180.226803405043表17 Cr-Mo合金钢的强度等级材料热处理抗拉强度,MPa屈服强度,MPaHB1Cr0.5MoA, N+T415205121174 (163)N+T, Q+T4852751432071.25 Cr0.5MoA, N+T415205121174 (163)N+T, Q+T485275143207N+T, Q+T5153101562072.25 Cr1MoA, N+T415205170 (163)N+T, Q+T515310156207Q+T5853802in20Q+T5854152in18Q+T6555152in20Q+T7255852in14Q+T7956902in135Cr0.5MA, N+T415205163, 179N+T, Q+T485275143217N+T, Q+T620450187248Q+T690550248352注:取自ASTM A182, A194,A213, A542表18 奥氏体不锈钢Cr,Ni成份范围材料标准CrNi3040Cr18Ni9GB板,管,棒JB锻件1719811ASTM A312管1820811ASTM A240板810.5ASTM A182锻件811304L00Cr19Ni10GB板,管,棒JB锻件812ASTM A312管811ASTM A240板812ASTM A182锻件813316L00Cr17Ni14GB板,管,棒JB锻件16181215ASTM A312管1015ASTM A240板1014ASTM A182锻件1014.53160Cr17Ni12GB板,管,棒JB锻件1014ASTM A312管1114ASTM A240板1014ASTM A182锻件1014.5表20钢管的焊缝系数序号焊接型式焊缝类型检查W1连续炉焊1直缝GB3091(我固已淘汰)0.602电阻焊（ERW）直缝或螺旋缝GB3091,GB9711.10.853.1电熔焊（EFW）GB3091a.单面对接焊（带或不带填充金属）直缝按材料标准不作RT0.80Sy5037螺旋缝局部（10%）RT, 0.90Sy5037螺旋缝100%RT1.003.2A671,672,694,358b.双面对接焊和相当的单面对接焊（带填充金属）直缝按材料标准不作RT0.85局部（10%）RT0.90100%RT1.004GB9711.1埋弧焊 (DSAW)直缝(一条或二条) 按GB9711.1规定100% UT+两端RT0.95表21 美國,中國低碳钢管子,管件用料的化学成分一览标准及牌号材料C maxMn maxP maxS maxSi minA234 WPB管件0.300.291.060.0500.0580.100.250.291.35A106 B无缝管0.300.291.060.0350.0350.100.250.291.35API 5L B无缝管0.271.150.0300.030板,焊管0.26A516 - 60板12.5mm0.210.851.200.0350.0350.100.4012.550mm0.23A516 - 65板 12.5mm0.2412.550mm0.26A516 - 70板 12.5mm0.2712.550mm0.28A105锻件0.350.601.050.0350.0400.100.350.300.601.35A182 - 60锻件0.351.100.0500.0500.100.35A182 - 700.301.35GB8163 20无缝管0.170.240.350.650.0350.0350.170.37GB5310 20G无缝管0.170.240.350.650.0300.0300.170.37GB9711.1L245无缝管0.271.150.0300.030板，焊管0.26GB6654 20R板0.200.400.900.0350.0300.150.35JB4726 20锻件0.170.230.601.000.0300.0200.170.37GB700 Q235A板0.140.220.300.650.0450.0500.120.30GB700 Q235B板0.120.200.300.700.0450.0450.120.30A234 WPB力学性能要求:抗拉415585MPa屈服240 MPa延伸22% (4D)表22管螺纹螺纹密封非螺纹密封ISOISO 7/1 R,Rp,RcISO 228 GASMEASME B1.20.1 NPTGBGB 7306 R,Rp,RcGB 12716 NPTGB 7307 G螺纹角556055锥度/平行 外1:16锥度 R1:16锥度 NPT平行 G 内平行 Rp1:16锥度 NPT平行 G 内1:16锥度 RcJISJIS B0203 PT,PT,PS(平)JIS B0202 PFBSBS 21 BSPT BS 2779 BSPFDINDIN 2999 R(外),R (内,平)DIN 259 R(内),K(外) 表23 NPT管螺纹螺纹牙高h,切削深度C和拧紧长度LNPT螺纹牙高h ,mm切削深度C ,mm拧紧长度L1+L3 ,mm1/80.750.906.91/41.131.36103/81.131.3710.31/21.451.7613.63/41.451.7714.111.772.2216.81- 1/42.1917.31-1/22.2117.322.2317.72-1/22.543.3523.733.4025.83-1/23.4427.243.4827.853.5630.163.6530.783.8133.4106.9737.1127.1340.9 C=D（Eoh）225.4表24法兰型式与Mmax 10000 N-mPNDNWNSO板式平焊201002.351.550.473008.985.701.02501005.063.700.9030015.910.22.14 表25垫片材料的硬度与密封面Ra或Rz的关係材料硬度HBRz maxRa max鉛410025金15256.3铝20256.3银3012.53.2铜506.31.6黄铜706.31.6软铁903.20.8蒙乃而1103.20.8镍1203.20.8软钢1203.20.8钛1303.20.8不锈钢1601.60.4海氏合金1601.60.4PTFE10025膨胀石墨5012.5压缩纤维橡胶板5012.5橡胶5012.5 表26 EN1091-1 WN法兰端部最小厚度PNDN2.561016254063100101.81.81.81.81.81.81.81.8152.02.02.02.02.02.02.02.0202.32.32.32.32.32.32.62.6252.62.62.62.62.62.62.62.6322.62.62.62.62.62.62.92.9402.62.62.62.62.62.62.92.9502.92.92.92.92.92.92.93.2652.92.92.92.92.92.93.23.6803.23.23.23.23.23.23.641003.63.63.63.63.63.6451254444444.56.31504.54.54.54.54.54.55.67.12006.36.36.36.36.36.37.1102506.36.36.36.37.17.18.812.53007.17.17.17.1881114.23507.17.17.1888.812.5164007.17.17.188.81114.24507.17.17.188.812.55007.17.17.181014.26007.17.17.18.811167007.17.188.812.58007.17.181014.29007.17.110101610007.17.1101017.51200781112.51400781214.2160089141618009101517.520001011162022001012182400101320260010142228001015223000101624320010163400101836001018380010400010 表27垫片参数(JPI 7S-81-96, ASME GB150)材料厚度 ,mmmYmin , MPaYmax , MPa橡胶30.501.415夾布橡胶1.252.8柔性石墨0.8, 1.617PTFE1.53.2234032.520填充PTFE1.53.2235032.520PTFE包覆垫2.8,劈,車 包3.5154.020石棉橡胶0.83.545301.52.752620321115缠绕垫4.5369300环垫软钢,低C钢5.5124Cr5Mo6150不锈钢6.5180表28 EN1591垫片参数垫片材料YminYmaxm20100200300400500600橡胶0.52818120.9PTFE105035201.3膨胀PTFE12150150150柔性石墨1010010095901.3柔性石墨多孔板加强15150145140130柔性石墨金属板加强10100908070柔性石墨多层板加强152702502302101.3非石棉1mm4010090701.6非石棉1mm35807060软钢齿形垫复PTFE103503302902501.3不锈钢齿形垫复PTFE10500480450420软钢齿形垫复石墨153503302902501.3合金钢齿形垫复石墨15400390360320270220不锈钢齿形垫复石墨15500480450420390350不锈钢齿形垫复银1256005705405004604002501.8PTFE缠绕垫带外环2011010090801.6PTFE缠绕垫带内外环20180170160150石墨缠绕垫带外环20