2010年最新公称压力MPa管道壁厚对照表

1、（2010年）最新公称压力（MPa）管道壁厚对照表（一）无缝碳钢管壁厚m m才料MPaDN1015202532405065801001251502002503003504004505006002012CrMo15CrMo12Cr1MoVv 1.62.533333.53.544444.5567788892.52.533323.53.544444.55677889104.02.533333.53.5444.555.578910111213156.43333.53.53.544.5567891112141617192210.033.53.544.54.55678910131518202216.044

2、.55566789111315192426303420.044.556678911131518222832364.0T3.5444.5555.510Cr5Mo562.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.57789910124.02.533333.53.544.555.56891011121415186.43333.5444.555.5789111314161820222610.033.5444.555.57891012151822242616.044.555678910121518222832364020.044.5

3、5678911121518222634384.0T3.5444.5555.516Mn15MnVV 1.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.5677894.02.52.52.533333.535 .44.55678891011126.42.53333.53.53.544.55678911121314161810.0333.53.5444.556789111315171916.03.53.544.55567891112161922252820.03.544.555.56789111315

4、19242630材料PNDNMPa101520253240506580100125150200250300350400450500600< 1.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.52.52.52.5333333.53.544.5551Cr18Ni9Ti2.522.52.52.52.52.53333.53.544.55667含Mo不锈钢4.022.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.53.54444.5（二）无缝不锈钢管壁厚mm

5、（三）焊接钢管壁厚mm才料PNMPaDN20025030035040045050060070080090010001100120014001600旱接碳钢管（Q235A2。0.25555555566666671770.6556666677778889101.055666778899101111121.66677889101112131415162.57899101112131516旱接不锈钢管0.25 33333.53.53.54444.54.50.6333.53.53.5444.555661.03.53.544.54.555.567781.644.55667789102.5567899101

6、21315«II-516糊幅做旗铜曜快服时的/in粹 D /mmG20G30G45G60G80G100G120GUODN/tnmW/mm傩SIR/(g'in 1M/mmw mi kg tn-1flf/mmmi版，4i /IAntnsti/kg 'n'1/mmmi版顽/mrA n蜓 g kg'in 1早M /mmm mi 板F/tomm «tt/ 版，m"103/8U2a 59?2.5040930.8M0.8Mn0.740部1.04L04IS1/2182.5挪62.50.5563bll428nL?01.20IUIl.78203/425

7、2.5293L»i1.8642.07271.5!1.712.03TF25)322.5L823LIS42.763.331.942.212.963.S8(32)M3832.59152.91IJ3.725.54.41422,893.324.1619540<srh3.11153.5151936$77(83.33冲5.30S.21SOI5734.0045您5.$6,998.&601225.5：139% 15(65)2%花3.56.26157.93111.9181H2803893,7.38510.36114,161019.48100L108IU(10.2610.855IS.W1W9

8、21.9723.301228.(1 sa 18(125)i.1231401514.26IS. 04121.7)22.95103a 3332.06M41.0813.50ISO«7159I6S:E18.9920.10126.2427.79J29,3也1036. U 3M612H 50福16u50.0653.171656.1259.97加。219631.52841.6310$1.51u6261575.4618M209& 152502731692g58.591277,2115954318113.1921naw241亿37300325862.H1185,18M)07. J717129,

9、1221157.«UI7&I428205.073$0377981.6712108.01IS131 $020176.07242O8J2282M9832400(2692.5510102.5913132.40117b 4$2219.18仰ISO9104.53II127.2215I7ZOO19216.(0H269.88500530IIS. 6312153.臾】6202.80263.5920wit, m, 134.568节12u2（项加.成rC仗有1仆:氐加MP2,69_4S57.810.413116U.211 ,小 项刀,(,叽(.|<o,(IZu,(1 仙人卜义4，*的，漱_

10、 "d壬川抑网 1 。的flwW. tl nN. *<nm*«lM I fl *h AHKt AI.SnMiiMNMffiit.内压金属直管的壁厚 根据SH 3059-2001石油化工管道设计器材选用通则确定：当S0< Do /6时，直管的计算壁厚为：S0 = P D0/(2 b t +2PY)直管的选用壁厚为：S = S0 + C式中S 直管的计算壁厚，mmP设计压力，MPa；D0 直管外径，mmb t 设计温度下直管材料的许用应力，MPa；焊缝系数，对无缝钢管，=1;S包括附加裕量在内的直管壁厚，mm;C直管壁厚的附加裕量，mmY温度修正系数，按下表选取。温

11、度修整系数表钢管壁厚表示方法有管子表号、钢管壁厚尺寸和管子重量三种方法1) 是以管子表号”Sch”表示壁厚。:Sch=Sch140、管子表号是管子设计压力与设计温度下材料许用应力的比值乘1000,并经圆整后的数值。即P/ b t x 1000ANSI B36.10 壁厚等级：Sch10、Sch20、Sch30、Sch40、Sch60、Sch80、Sch100、Sch120、 Sch160十个等级；ANSI B36.19 壁厚等级：Sch5s、Sch10s、Sch40s、S2) 以钢管壁厚尺寸表示中国、ISO、日本部分钢管标准采用ch80s四个等级；表示英制管壁厚系列：Sch.20-全称：Sch

12、edule 20Sch.10s-带s的系列为不锈钢专用，碳钢不用。举个例子：2" sch.10s表示2"接管的壁厚为2.9mm,材质为不锈钢；2" sch.40表示2"接管的壁厚为4.0mm。3) 是以管子重量表示管壁厚度，它将管子壁厚分为三种：a.标准重量管，以 STD表不'b加厚管，以XS表示c.特厚管，以XXS表示。对于D田250mm的管子，Sch40相当于STD , DN<200mm 的管子，Sch80相当于XS。钢管壁厚的分级，在不同标准中所表示的方法也各不相同。ANSI B36.10 和 JIS 标准中的管子表号为；Schl0、

13、20、30、40、60、80、100、120、140、160。ANSI B36.19中的不锈钢管管子表号为：5S、10S、40S、80S。管表号(Sch.)并不是壁厚，是壁厚系列。实际的壁厚，同一管径，在不同的管子表号中其厚度各异。不同管子表号的管壁厚度，在美国和日本是应用计算承受内压薄壁管厚度的Barlow公式计算并考虑了腐蚀裕量和螺纹深度及壁厚负偏差-12. 5%之后确定的，如公式(1-2-2)和(1-2-3)所示。tB=D0P/2 t (1-2-2)t=D0/2 (1-0.125) >P/ t+2.54(1-2-3)式中tB t分别表示理论和计算壁厚，mmD0管外径，mmP设计压力

14、，MPa重一一在设计温度下材料的许用压力，MPa计算壁厚径圆整后才是实际的壁厚。如果已知钢管的管子表号，可根据式(1-2-1)计算出该钢管所能适应的设计压力，即P=Sch.木t/1000 (1-2-4)例如，库存Sch40,碳素钢20无缝钢管，当设计温度为350oC时给钢管所能适应 设计压力为：P=40 X92/1000=3.68 MPa中国石化总公司标准 SHJ405规定了无缝钢管的壁厚系列并Sch. 5S，Sch. 10,Sch. 10s, Sch. 20, Sch. 20s, Sch. 30, Sch. 40, Sch。 40s, Sch. 60, Sch. 80, Sch. 100,S

15、ch. 120, Sch. 140, Scho 160,如表 1-2-9 所示。2.以管子重量表示管壁厚度的壁厚系列美国MSS和ANSI规定的以管子重量表示壁厚方法，将管子壁厚分为；种：(1) 标准重量管以 STD表不'；(2) 加厚管以XS表示；(3) 特厚管以XXS表示。<DN250mm 的管子，Sch40相当于STD管。<DN200mm的管子，Sch80相当于XS管。常用钢材的化学成分和机械性能，冈为序号钢 号标准号化学成分碳C镒Mn硅Si铭Cr镣Ni钥Mo帆V钛Ti1A3YB17O 632A3RYB53K 690.220.400.650.120.30冈310MnRY

16、B53K 690.201.201.600.200.600.04 0.12415MnVRYB53K 690.181.201.600.200.600.04 0.10509Mn2VRYB53K 690.121.401.800.200.50620gGB71J 720.16 0.240.350.650.150.305(C%-0.02)0.80722gGB71J 720.19 0.260.70 0.900.17 0.3780Cr18Ni9TiYB542 700.082.001.0017.0 19.08.0 10.591Cr18Ni9TiYB542 700.1212.001.0017.0 19.08.0 1

17、0.50.30 0.801000Cr19Ni10YB542 700.032.001.0018.0 20.08.0 12.018.0 -25.011 0Cr17Ni13Mo2TiYB542 700.082.000.8016.0 18.012.0 14.02.0-3.01200Cr17Ni14Mo2YB542 - 700.032.001.0016.0 18.012.0 16.013A3YB231 70冈1410YB231 700.07 0.140.35 0.650.17 0.370.150.251520YB231 700.17 0.240.35 0.650.17 0.350.250.251616M

18、nYB231 700.12 0.201.20 1.600.20 0.60冈化学成分机械性能（不小于）才序号钢 号标准号其它硫S磷P抗拉强度a b屈服点a S延伸率3 s冲击值a b备注不大于kg/kg/%kg m/1A3YB175 6338 472426S4 202A3RYB536 690.0450.0403838242326267.06.5616S17 26冈 k310MnRYB536 690.0450.0405250353321206.30616S17 26415MnVRYB536 690.0450.0405452403818176.0616S17 26509Mn2VRYB536 690.

19、0400.0405035213.5(-70 C)S5 20620gGB71E 720.0450.0404141252426256.0616S17 25722gGB71E 720.0450.0404327246.0S6 6080Cr18Ni9TiYB542 700.0200.035553891Cr18Ni9TiYB542 700.0200.03555381000Cr19Ni10YB542 700.0200.0355040110Cr17Ni13Mo2TiYB542 700.0200.03550451200Cr17Ni14Mo2YB542 - 700.0200.0355045冈13A3YB231-

20、700.0550.0453824221410YB231-700.0400.0353421241520YB231-700.0500.0404025201616MnYB231- 700.0500.050523521化学成分才序号钢 号标准号碳C镒Mn硅Si铭Cr镣Ni钥Mo帆V钛Ti1715MnVYB231- 700.120.181.200.060.20 0.600.04 1.201812CrMoYB237 70< 0.150.400.700.20 0.400.400.700.400.551915CrMoYB237 700.120.180.400.700.20 0.400.80 1.100.

21、400.5520Cr5MoYB237 70< 0.15< 0.60< 0.504.06.00.500.602112CrMoVYB524 700.080.150.80 0.120.50 0.80W0.30 0.550.400.650.25 0.35冈 k2212Cr2MoWVBYB524 700.080.150.450.650.45 0.751.60 2.100.500.650.28 0.420.080.182312Cr3MoVSiTiBYB524 700.090.150.500.800.60 0.902.503.001.001.200.25 0.350.22 0.382412

22、CrMoVYB524 700.080.150.400.700.17 0.370.901.200.250.350.15 0.30251Cr18Ni9TiYB804 70< 0.121.01.5< 0.8017.018.09.0 11.05.8 X C%0.8026Cr18Ni13Mo2TiYB804 70< 0.101.02.0< 0.8016.018.012.0 14.01.82.55.8 X C%0.802700Cr18Ni10YB804 70< 0.03< 2.0< 1.0017.0 -19.010.0 12.02800Cr17Ni13Mo2YB8

23、04 70< 0.03< 2.0< 1.0016.0 -18.012.0 14.01.8 /-2.529ZG25YB979-67 >0.220.320.500.800.20 -0.45冈30ZG20CrMo0.15 -0.250.40.70.17 -0.370.9 -1.20.5 /-0.70.2-0.331ZG20CrMoV0.18 -0.250.40.70.14 -0.370.9 -1.20.5 /-0.70.2-0.332ZG15Cr1Mo1V0.12 -0.200.40.70.17 -0.370.9 -1.20.8-1.20.2-0.4冈化学成分机械性能（不小于

24、）才序号钢 号标准号其它硫S磷P抗拉强度a b屈服点a S延伸率3 s冲击值a b备注不大于kg/kg/%kg m/1715MnVYB231- 700.0500.0505440181812CrMoYB237 70Cu< 0.300.0400.04042252171915CrMoYB237 70Cu< 0.300.0400.040452621620Cr5MoYB237 700.0300.035402022122112CrMoVYB524 700.0400.040544017冈 k2212Cr2MoWVBYB524 700.0350.0355535182312Cr3MoVSiTiBYB

25、524 700.0350.0356445182412CrMoVYB524 700.0400.04048452626211965纵向横向251Cr18Ni9TiYB804 700.0300.035564026Cr18Ni13Mo2TiYB804 700.0300.03560352700Cr18Ni10YB804 700.0250.03550502800Cr17Ni13Mo2YB804 700.0250.035604029ZG25YB979-670.040.044524204.5冈30ZG20CrMo0.030.03472518331ZG20CrMoV0.030.03503214332ZG15Cr

26、1Mo1V0.030.035535203.5英国标准BS13781985焊接钢管或BS21螺纹钢管公称宜径Nominal Siazc壁J9 （艰米）Wall "rhickncss（黑管）1Weight （Black piq 参考值外径（空米）OutsidcDianwter （nunJ呕米 mm英寸（25） inchABCABCABCAB15I/22.02.63.221.421. 721.721.021.021.00.9171.21203/42.32.63.226.907 o07 026.426.626.61.381.5625I3.24,033.834. 234.233.233.433.41.982.4132l-i/43.21042.542.942.941.942. I42.12. 543.1040I I/23.24.048.448.848.847.848.018.03.233. 575023.64.560.260.860.859.659.859.84.085.03652-I/23.23.64.576.076.676.675.275.475.45.716. 438033.24.05.088.789.589.587.988. I88.16. 728. 3710043.64.55.411