(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mm材料PNMPaDN101520253240506580100125150200250300350400450500600D1.62.533333.53.544444.5567788892.52.533323.53.544444.5567788910204.02.533333.53.5444.555.5789101112131512CrMo6.43333.53.53.544.5567891112141617192215CrMo10.033.53.544.54.55678910131518202212CrlMoV16.044

2、.55566789111315192426303420.044.556678911131518222832364.0T3.5444.5555.5D1.62.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.57789910124.02.533333.53.544.555.568910111214151810Cr5Mo6.43333.5444.555.5789111314161820222610.033.5444.555.57891012151822242616.044.555678910121518222832364020.044

3、.55678911121518222634384.0T3.5444.5555.5D1.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.56778916Mn4.02.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161815MnV10.0333.53.5444.556789111315171916.03.53.544.55567891112161922252820.03.544.555.56789111315

4、19242630材料PNMPaDN101520253240506580100125150200250300350400450500600lCrl8Ni9Ti含MoODDD1.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.52.52.52.5333333.53.544.5552.522.52.52.52.52.53333.53.544.556674.022.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.53.54444.5（二）无缝不锈钢管壁厚mm（三）焊

5、接钢管壁厚mm材料PNMPaDN20025030035040045050060070080090010001100120014001600焊接碳钢管（Q235A20）0.2555555556666667770.6556666677778889101.055666778899101111121.66677889101112131415162.57899101112131516焊接不锈钢管0.2533333.53.53.54444.54.50.6333.53.53.5444.555661.03.53.544.54.555.567781.644.55667789102.556789910121315

6、DN/mm栩当側/ii外径/mmG20G30G45G60G80GlOd/mmkgmJB壁厚/mm麼改«/kg-tn-1/mmftEft/欣*m“/mtnkg-mJ/mhsJcgTm:/mm单證Km1/m10145-0+59ZQ709681417a740£-b0.S941.04151/2?qd瞅9Ed956111盟b201-2031-412D3/435?E1.39|.«35.5”储27Am31.513L7S監03251321-8ZZ.1542”7&341.94A/油2.96(321JIA抿259a,5z9a17212i“93.3E4.1640n/i4533.

7、ii3-.53-584-93乱333.S455-30502弱34-GO"45-?36-991235«527.39(6S)3-54-57-aaE厂803辟3-573$5I0k367Ux161004IC8IH41112610.S5$15.0015.98p21.a?j23-30g)51231404-51瓠冊15r0472b7S22-96IO30.2332-eft15061S9附5悠S920,107Z6.2427.7929,7931,5?103&-743fi.9S12U-50也16200£1汝g31-S2841-63io-51.5412CL2615猖46162S0

8、Z73745.9295B-591277.241595-4318IM-ISZ3G0325862-5411S5-18141D7-3717129.IS21157,4324站Q277gSl-7122D15133.9020176.07对20S.922S+00426992,551002.5913E32.疝17ITIh16S3219-L«450ISO酉104.5311127,2215172-001曲ZIG-0034Z69-朋SSD53ftgLt乩百訂1315X29152OJr6-0212R3因20mTl-.SOD'C-，JWM1忡压力MPn2、368102dXBCru.廉盘1ftfKJj/

9、MPoso3.g5.S57-£K433内压金属直管的壁厚根据SH3059-2001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：SO=PD0/(2ote+2PY)直管的选用壁厚为：式中SO直管的计算壁厚，P设计压力，MPa；DO直管外径，mm；ot设计温度下直管材料的许用应力，0焊缝系数，对无缝钢管，S包括附加裕量在内的直管壁厚，C直管壁厚的附加裕量，S=S0+Cmm；MPa；0D1；mm；mm；Y温度修正系数，按下表选取。温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。管

10、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P/Gtxl0001000,并经圆整后的数值。即:SchDANSIB36.10壁厚等级：Sch10、Sch20、Sch30、Sch40、Sch60、Sch80、Sch100、Sch120、Sch140、Sch160十个等级ANSIB36.19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：Schedule20Sch.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,

11、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表示b加厚管，以XS表示c.特厚管，以XXS表示。对于DN<250mm的管子，Sch40相当于STD,DNv200mm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。ANSIB36.10和JIS标准中的管子表号为；SchlO、20、30、40、60、80、100、120、140、160。ANSIB36.19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

12、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/26t(1-2-2)t=D0/2(1-0.125)xP/ot+2.54(1-2-3)式中tBt分别表示理论和计算壁厚，mmD0管夕卜径，mmP设计压力，MPaot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.xot/1000(1-2-4)例

13、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=40x92/1000=3.68MPa中国石化总公司标准SHJ405规定了无缝钢管的壁厚系列并SchU5S，SchU10,Sch10s，Sch20，Sch20s，Sch30，Sch40，Sch。40s，Sch60，Sch80，Sch100，SchU120，SchU140，Sch。160，如表1-2-9所示。2U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表示；(2) 0000XS表示；(3) 特厚管以XXS表示。vDN2

14、50mm的管子，Sch40相当于STD0。vDN200mm的管子，Sch80相当于XS0。常用钢材的化学成分和机械性能钢材类别序号钢号标准号化学成分%碳C锰Mn硅Si铬Cr镍Ni钼Mo钒V钛Ti钢板1A3YB175D632A3RYB536D690.220.40口0.650.12口0.303lOMnRYB536D690.201.20口1.600.20口0.600.04口0.12415MnVRYB536D690.181.20口1.600.20口0.600.04口0.10509Mn2VRYB536D690.121.40口1.800.20口0.50620gGB713D720.16口0.240.35D0

15、.650.15口0.305(C%-0.02)0.80722gGB713D720.19口0.260.70口0.900.17口0.3780Cr18Ni9TiYB542D700.082.001.0017.0口19.08.0口10.591Cr18Ni9TiYB542D700.1212.001.0017.0口19.08.0口10.50.30口0.801000Cr19Ni10YB542D700.032.001.0018.0口20.08.0口12.018.0口25.0110Cr17Ni13Mo2TiYB542D700.082.000.8016.0口18.012.0口14.02.0口3.01200Cr17Ni

16、14Mo2YB542D700.032.001.0016.0口18.012.0口16.013A3YB231D70钢1410YB231D700.07口0.140.35D0.650.17口0.370.150.25管1520YB231D700.17口0.240.35D0.650.17口0.350.250.251616MnYB231D700.12口0.201.20口1.600.20口0.60钢序钢号标准号化学成分%机械性能（不小于)其硫S磷P抗拉强度Obkg/屈服点Oskg/延伸率6s%冲击值abkgDm/备注不大于1A3YB175D6338D472426S4D203824267.06D162A3RYB

17、536D690.0450.0403823266.5S17D265235216D16钢310MnRYB536D690.0450.0405033206.30S17D265440186D16板415MnVRYB536D690.0450.0405238176.0S17D263.5509Mn2VRYB536D690.0400.040503521(a70D)S5D204125266D16620gGB713D720.0450.0404124256.0S17D25722gGB713D720.0450.0404327246.0S6D6080Cr18Ni9TiYB542D700.0200.035553891Cr1

18、8Ni9TiYB542D700.0200.03555381000Cr19Ni10YB542D700.0200.0355040110Cr17Ni13Mo2TiYB542D700.0200.03550451200Cr17Ni14Mo2YB542D700.0200.035504513A3YB231D700.0550.045382422钢1410YB231D700.0400.035342124管1520YB231D700.0500.0404025201616MnYB231D700.0500.050523521钢材类别序号钢号标准号化学成分%碳C锰Mn硅Si铬Cr镍Ni钼Mo钒V钛Ti钢板1715MnV

19、YB231D700.12口0.181.20口0.060.20口0.600.04口1.201812CrMoYB237D70D0.150.40口0.700.20口0.400.40口0.700.40D0.551915CrMoYB237D700.12口0.180.40口0.700.20口0.400.80口1.100.40D0.5520Cr5MoYB237D70D0.15D0.60D0.504.0口6.00.50口0.602112CrMoVYB529D700.08口0.150.80口0.120.50口0.80W0.30D0.550.40口0.650.25口0.352212Cr2MoWVBYB529D70

20、0.08口0.150.45D0.650.45D0.751.60口2.100.50D0.650.28口0.420.080.182312Cr3MoVSiTiBYB529D700.09口0.150.50口0.800.60口0.902.50口3.001.00口1.200.25口0.350.22口0.382412CrMoVYB529D700.08口0.150.40口0.700.17口0.370.90口1.200.25口0.350.15口0.30251Cr18Ni9TiYB804D70D0.121.0口1.5D0.8017.0口18.09.0口11.05.8口C%D0.8026Cr18Ni13Mo2TiY

21、B804D70D0.101.0口2.0D0.8016.0口18.012.0口14.01.8口2.55.8口C%D0.802700Crl8Nil0YB804D70D0.03D2.0D1.0017.0口19.010.0口12.02800Crl7Nil3Mo2YB804D70D0.03D2.0D1.0016.0口18.012.0口14.01.8口2.529ZG25YB979-67>0.22D0.320.50口0.800.20口0.45钢30ZG20CrMo0.15口0.250.4口0.70.17口0.370.9口1.20.5口0.70.2口0.3管31ZG20CrMoV0.18口0.250.4

22、口0.70.14口0.370.9口1.20.5口0.70.2口0.332ZG15CrlMolV0.12口0.200.4口0.70.17口0.370.9口1.20.8口1.20.2口0.4钢材序钢号标准号化学成分%机械性能（不小于）其硫磷抗拉强度屈服点延伸率冲击值类号它SPObOs6sab备注别不大于kg/kg/%kgDm/1715MnVYB231D700.0500.0505440181812CrMoYB237D70CuD0.300.0400.04042252171915CrMoYB237D70CuD0.300.0400.040452621620Cr5MoYB237D700.0300.03540

23、2022122112CrMoVYB529D700.0400.0405440172212Cr2MoWVBYB529D700.0350.035553518钢n2312Cr3MoVSiTiBYB529D700.0350.035644518板4826216纵向2412CrMoVYB529D700.0400.0404526195横向251Cr18Ni9TiYB804D700.0300.035564026Cr18Ni13Mo2TiYB804D700.0300.03560352700Cr18Ni10YB804D700.0250.03550502800Cr17Ni13Mo2YB804D700.0250.035

24、604029ZG25YB979-670.040.044524204.5钢30ZG20CrMo0.030.034725183管31ZG20CrMoV0.030.03503214332ZG15Cr1Mo1V0.030.035535203.5英国标准BS137H1殆5焊接钢管或站21螺纹钢管金称IT.径NominalSifi7£申圧f电米）WallItLizkiies!；蚪卷（电米）OutsideUia11erer<mmJ堆AMm宅米mm英-J（*25）inchABcABCAB151/22.C3.6122L421.72L721.031.0203/42.33.63.226.927.22

25、7=226.426.62S1&21033.834P234.233.23J.-1321-1/41042.542.942.941.ClI：!.I40id/2：!.91048.448.?48aS47.-91H.0502:!-S$,C1,5&0.260.?60.S5.659.Sh.l2dZ2J.2点64,576.076.6恣&75.275.-1803J.21.05.088.7鮒5驗5酣9SS.IIUD4J.S1.55.4IB,9114.9114.9113.01IJ.312&5a.05.4140.6140.6gT15063.0氐4166,1166,11阴.121.0抚托33.I1