(2010年)最新公称压力(MPa)管道壁厚对照表分解

1、（2010 年 ） 最新公称压力（MPa）管道壁厚对照表m m材料PNMPaDN1015202532405065801001251502002503003504004505006002012CrMo15CrMo12Cr1MoV 1.62.533333.53.544444.5567788892.52.533323.53.544444.55677889104.02.533333.53.5444.555.578910111213156.43333.53.53.544.5567891112141617192210.033.53.544.54.55678910131518202216.044.55566

2、789111315192426303420.044.556678911131518222832364.0T3.5444.5555.510Cr5Mo 1.62.533333.53.544.5444.55.577888892.52.533333.53.544.5454.55.57789910124.02.533333.53.544.555.56891011121415186.43333.5444.555.5789111314161820222610.033.5444.555.57891012151822242616.044.555678910121518222832364020.044.55678

3、911121518222634384.0T3.5444.5555.516Mn15MnV 1.62.52.52.533333.53.53.53.544.555.5666672.52.52.52.533333.53.53.53.544.555.5677894.02.52.52.533333.53.544.55678891011126.42.53333.53.53.544.55678911121314161810.0333.53.5444.556789111315171916.03.53.544.55567891112161922252820.03.544.555.56789111315192426

4、30（ 二 ） 无缝不锈钢管壁厚mm材料PNMPaDN1015202532405065801001251502002503003504004505006001Cr18Ni9Ti含 Mo不锈钢 1.02222.52.52.52.52.52.5333.53.53.5444.51.622.52.52.52.52.5333333.53.544.5552.522.52.52.52.52.53333.53.544.556674.022.52.52.52.52.5333.544.556789106.42.52.52.53333.544.55678101113144.0T33.53.54444.5材料PNMP

5、aDN20025030035040045050060070080090010001100120014001600焊接碳钢管（ Q235A20）0.2555555556666667770.6556666677778889101.055666778899101111121.66677889101112131415162.57899101112131516焊接不锈钢管0.2533333.53.53.54444.54.50.6333.53.53.5444.555661.03.53.544.54.555.567781.644.55667789102.556789910121315mm«Its

6、16翱帼翎无躺通寐拆融DN /mm出物 Mtt /«服 I) /mmG20Cr30G45G60G80G100G120G140W /mmm miM /mmw «tt/ kg'tn'1啊/mmm mi4, ffl-*州/mmmMl/ kg* m'*柳/mm祗:1长»/mmWiK物 /mm林KMl/3州 /mm«»/MV m ra m. E iK Id3/8U172网 0.7402.504M049430.8MTF.30.8M L(MIS1/218222,50.955 uo2.50.9561.203mi1UII1.38TiT加.

7、昭25272.513915!31431.78U1.862.0342.07TF2$132342.5.18219432.152.2942,76%965“3TsT(32)38<232 59289152.983.324!3.724165.5954045，8rh1113.333.53.583.8151935.306¥776.215025131004543K6.9978寓(04225.527,399.15(65)2%76J. 56.26(.57.93111.91811 12803893.57.38510.361N.H1019,4810041081U(M加615.0915.98921.972

8、3.301228.41W18(125)5123U04,514 26IS04721.7522.96103U332. oeU利做U50ISO61591锚5 99 jaio126.2427.79829.7931.5710363M4612U50根16u5Q，M53.171656.1259.97触219631.52841.631051由126161575. U182098.15250273692958.59127721595d318113.1921Ba 50241忡30032586254II85.18u107.3717129.1221157.«U178.14n205.07副377981.671

9、2108.01IS131902。176.072420M228240.9832枷126992.5510102.5913132-iO171714622219.18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 t +2PY)直管的选用壁厚为：S = S0 + C式中S0直管的计算壁厚，mm；P设计压力，MPa；D0直管外径，mm； 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 ；mm；S包括附加裕量在内的直管壁厚，C直管壁厚的附加裕量，mm；Y温度修正系数，

10、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: Sch P/ t × 1000ANSI B36.10 壁厚等级：Sch10、Sch20、Sch30、Sch40、Sch60、Sch80、Sch100、Sch120、Sch140、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 ;

11、表示英制管壁厚系列：Sch.20全称： Schedule 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， 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

12、准中的管子表号为；Schl0、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 ót （ 1-2-2）t=D0/2（ 1-0.125） ×P/ ót+2.54 （ 1-

13、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，MPa ót 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. × ót/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× 92/1000 =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 20

14、s， Sch 30， Sch 40， Sch。 40s， Sch 60， Sch 80， Sch 100，Sch 120， Sch 140， Sch。 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 表示；(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。GB/T 13401-2005附录B（资料性附录）与管件连接的钢管壁厚分级表b i本附录列出r与管件连

15、接的钢管的壁厚分级表（见表R. D,供使用者参考。B.2本附录表中的壁厚数值摘自ASMEB36.1OM：1996f焊接和无缝教轧钢管:，和ASMEB36. I9M： 1985*1994）不锈钢管。表B.1与管件连接的钢管壁厚分级表鬼付为毫米公称尺寸外径公称喉屏DNNPSSch5SSrhlOSScMOSSchSOSSchlOSch20Sch3QSTDScMOScMOXSSchSOScMOOSchl20SchisSchlSOxxs1506168.32.773.407.1110. 977.117.1110.9710.9714.2718.2621.952008219.12.773.768.1812.7

16、06.357.048.188.1810.3112.701?. 7d15.0918.26?0. 6223.0122.2325010273.03.404.199.2712706.357.809.279.2712.7012.7015.0918.2621.4425.4028.5825.40300J2323.83.964.57”53,12706.358.389.5310.3114.2712.7017.4821.4425.4028.58313225.«350143SS. 63.964.786J57.929.539.5311.1315.0912.7019.0523.8327.71.7535.71&

17、lt;0036406.44.194.786J57.929.539.5312.7016.6612. 7021.4426.1930.96,36. S310.49450184574.194.786J57.9211.139.5314.2719N512.7023.8329.3634.93 !39. T4S.24500205084.785,546.359.5312.709.5315.0920,6212.7026.1932.5«?8.W14.4550.0)550225594.785.546J59.5312.709.5322.2312.7028.5834.9341.2847.6353.9860024

18、6105.546.356.359.5314. 279.5317.4824.6112.70数9638.8946.0252.3-59.54650266607. 5212.709.5312.70700287117.S212.7015.889.53】2.70750307626.357.927.5212. 7015.889.5312.70800328137. 5212. 7015.889.5317.4812.708S0347. 5215312,70900367.S212.7015.889.5319.0512.70950389.53It 701如0409.5312.70Ulf I lot酎 录 A辆IM无

19、维管件壁厚分皴果（参考件）表 A 1mm公称 通径 DN夕卜 径公称壁厚Sch5sSchlOsSch20sSch20Sch30Seb 40Sch60Sch80SchlOOSchi 20Schl40Schltt)A系列B系列1521.3181.62.12.62.93.64.52026.925L62.12.62.94.05.62533.7321.62.83.23.24.56.33242.438L6283.23.65.06.34048.345L62.83.23.65.07.15060.3571.62.83.63.24.05.68.86576.1(73；762.03.03.64.55.07.110.0

20、8088.9892.0S.04.04.5S.68.011.09010L62.03.04.04.55.68.012.5100114.31082.03.0405.05.98.811.014.2125139.71332.93.45.05.06.310.012.516.0150168.31592-93.45.05.67.111.014.217.5200219.1219294.06.36.37.18.010.012.516.017.520.022.2250273.02733.64.06.36.38.08.812.516.017.522225.028.0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

21、学成分%碳C锰Mn硅Si铬Cr镍Ni钼Mo钒V钛Ti1A3YB175 632A3RYB536 690.220.40 0.650.12 0.30310MnRYB536 690.201.20 1.600.20 0.600.04 0.12415MnVRYB536 690.181.20 1.600.20 0.600.04 0.10509Mn2VRYB536 690.121.40 1.800.20 0.50钢620gGB713 720.16 0.240.35 0.650.15 0.305(C%-0.02) 0.80板722gGB713 720.19 0.260.70 0.900.17 0.3780Cr1

22、8Ni9TiYB542 700.082.001.0017.0 19.08.0 10.591Cr18Ni9TiYB542 700.1212.001.0017.0 19.08.0 10.50.30 0.801000Cr19Ni10YB542 700.032.001.0018.0 20.08.0 12.018.0 25.0110Cr17Ni13Mo2TiYB542 700.082.000.8016.0 18.012.0 14.02.0 3.01200Cr17Ni14Mo2YB542 700.032.001.0016.0 18.012.0 16.0钢13A3YB231 70管1410YB231 700

23、.07 0.140.35 0.650.17 0.370.150.251520YB231 700.17 0.240.35 0.650.17 0.350.250.251616MnYB231 700.12 0.201.20 1.600.20 0.60序号钢号标准号化学成分%机械性能（ 不小于）其它硫S磷P抗拉强度bkg/屈服点skg/延伸率s%冲击值bkg m/备注不大于1A3YB175 6338 472426S4 202A3RYB536 690.0450.0403838242326267.06.56 16S17 26310MnRYB536 690.0450.0405250353321206.306

24、 16S17 26415MnVRYB536 690.0450.0405452403818176.06 16S17 26509Mn2VRYB536 690.0400.0405035213.5（ 70 ）S5 20620gGB713 720.0450.0404141252426256.06 16S17 25722gGB713 720.0450.0404327246.0S6 6080Cr18Ni9TiYB542 700.0200.035553891Cr18Ni9TiYB542 700.0200.03555381000Cr19Ni10YB542 700.0200.0355040110Cr17Ni13M

25、o2TiYB542 700.0200.03550451200Cr17Ni14Mo2YB542 700.0200.035504513A3YB231 700.0550.0453824221410YB231 700.0400.0353421241520YB231 700.0500.0404025201616MnYB231 700.0500.050523521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1715MnVYB231 700.12 0.181.20 0.060.20 0.600.04 1.201812CrMoYB237 70 0.150.40 0.700.

26、20 0.400.40 0.700.40 0.551915CrMoYB237 700.12 0.180.40 0.700.20 0.400.80 1.100.40 0.5520Cr5MoYB237 70 0.15 0.60 0.504.0 6.00.50 0.602112CrMoVYB529 700.08 0.150.80 0.120.50 0.80W0.30 0.550.40 0.650.25 0.352212Cr2MoWVBYB529 700.08 0.150.45 0.650.45 0.751.60 2.100.50 0.650.28 0.420.080.182312Cr3MoVSiTi

27、BYB529 700.09 0.150.50 0.800.60 0.902.50 3.001.00 1.200.25 0.350.22 0.382412CrMoVYB529 700.08 0.150.40 0.700.17 0.370.90 1.200.25 0.350.15 0.30251Cr18Ni9TiYB804 70 0.121.0 1.5 0.8017.0 18.09.011.05.8× C% 0.8026Cr18Ni13Mo2TiYB804 70 0.101.0 2.0 0.8016.0 18.012.0 14.01.82.55.8× C% 0.802700Cr

28、18Ni10YB804 70 0.03 2.0 1.0017.0 19.010.0 12.02800Cr17Ni13Mo2YB804 70 0.03 2.0 1.0016.0 18.012.0 14.01.82.529ZG25YB979-67>0.22 0.320.50 0.800.20 0.45钢30ZG20CrMo0.15 0.250.4 0.70.17 0.370.9 1.20.5 0.70.2 0.3管31ZG20CrMoV0.18 0.250.4 0.70.14 0.370.9 1.20.5 0.70.2 0.332ZG15Cr1Mo1V0.12 0.200.4 0.70.17

29、 0.370.9 1.20.8 1.20.2 0.4序号钢号标准号化学成分%机械性能（ 不小于）其它硫S磷P抗拉强度b屈服点s延伸率s冲击值b备注不大于kg/kg/%kg m/1715MnVYB231 700.0500.0505440181812CrMoYB237 70Cu 0.300.0400.04042252171915CrMoYB237 70Cu 0.300.0400.040452621620Cr5MoYB237 700.0300.035402022122112CrMoVYB529 700.0400.0405440172212Cr2MoWVBYB529 700.0350.03555351

30、82312Cr3MoVSiTiBYB529 700.0350.0356445182412CrMoVYB529 700.0400.04048452626211965纵向横向251Cr18Ni9TiYB804 700.0300.035564026Cr18Ni13Mo2TiYB804 700.0300.03560352700Cr18Ni10YB804 700.0250.03550502800Cr17Ni13Mo2YB804 700.0250.035604029ZG25YB979-670.040.044524204.530ZG20CrMo0.030.03472518331ZG20CrMoV0.030.

31、03503214332ZG15Cr1Mo1V0.030.035535203.5英国标准BS13781985焊接钢管或BS21螺纹钢管公称有径壁殍（电米）外径（在米）（黑管）1Nominal SiazcWall -rhickncxsOutsidcDianieter (mm JWeight (Black piq最大Max最小Mm参考侑名米英寸25）ABCABCABCABmminch151/22.02.63.221.421.721.721.021.021.00.9171.21203/42.32.63.226.907 o07 036. 126.626.61.381.562513.24.033.834.234.233.233.433.41.982.41321-1/43.24.042.542.942.941.942. I42.12. 543. 10401-1/213.24.048.448.848.847.848.048.03. 233. 57502(3.64.5