Summary

Nominal Pipe Size (NPS) is a defined set of standard pipe sizes commonly used for process piping. NPS piping is defined in terms of a nominal diameter and wall thickness (defined by the pipe schedule). This article provides characteristics for NPS piping in metric units.

Definitions

\(OD\):Outer diameter (mm)
\(ID\):Inner diameter (mm)
\(WT\):Wall thickness (mm)
\(ICSA\):Inner cross sectional area (mm2)
\(ECSA\):External cross sectional area (mm2)


NPS Pipe Characteristics in Metric Units

The characteristics of NPS piping in metric units are listed in the tables below. For the following tables in Imperial units please refer to here

NPSDNSchODWTIDICSAECSAWeight
(in)(mm)-(mm)(mm)(mm)(mm2)(mm2)(kg/m)
1/86510.2870.8898.5158.0683.870.206
1010.2871.2457.8045.1683.870.277
3010.2871.4487.3945.1683.870.315
4010.2871.7276.8338.7183.870.364
8010.2872.4135.4625.8183.870.468
STD10.2871.7276.8338.7183.870.364
XS10.2872.4135.4625.8183.870.468
10S10.2871.2457.8045.1683.870.277
40S10.2871.7276.8338.7183.870.364
80S10.2872.4135.4625.8183.870.468
1/48513.7161.24511.2396.77148.390.382
1013.7161.65110.4183.87148.390.491
3013.7161.85410.0177.42148.390.542
4013.7162.2359.2564.52148.390.632
8013.7163.0237.6745.16148.390.796
STD13.7162.2359.2564.52148.390.632
XS13.7163.0237.6745.16148.390.796
10S13.7161.65110.4183.87148.390.491
40S13.7162.2359.2564.52148.390.632
80S13.7163.0237.6745.16148.390.796
3/810517.1451.24514.66167.74232.260.488
1017.1451.65113.84148.39232.260.63
3017.1451.85413.44141.94232.260.698
4017.1452.31112.52122.58232.260.845
8017.1453.210.7490.32232.261.1
STD17.1452.31112.52122.58232.260.845
XS17.1453.210.7490.32232.261.1
10S17.1451.65113.84148.39232.260.63
40S17.1452.31112.52122.58232.260.845
80S17.1453.210.7490.32232.261.1
1/215521.3361.65118.03258.06354.840.801
1021.3362.10817.12232.26354.840.999
3021.3362.41316.51212.90354.841.12
4021.3362.76915.80193.55354.841.27
8021.3363.73413.87148.39354.841.62
12021.3364.31812.70129.03354.841.81
16021.3364.77511.79109.68354.841.95
STD21.3362.76915.80193.55354.841.27
XS21.3363.73413.87148.39354.841.62
XXS21.3367.4686.4032.26354.842.55
5S21.3361.65118.03258.06354.840.801
10S21.3362.10817.12232.26354.840.999
40S21.3362.76915.80193.55354.841.27
80S21.3363.73413.87148.39354.841.62
160S21.3364.7811.78109.68354.841.95
3/420526.671.65123.37425.81561.291.02
1026.672.10822.45393.55561.291.28
3026.672.41321.84374.19561.291.44
4026.672.8720.93341.93561.291.68
8026.673.91218.85277.42561.292.19
16026.675.56315.55187.10561.292.89
STD26.672.8720.93341.93561.291.68
XS26.673.91218.85277.42561.292.19
XXS26.677.82311.0296.77561.293.63
5S26.671.65123.37425.81561.291.02
10S26.672.10822.45393.55561.291.28
40S26.672.8720.93341.93561.291.68
80S26.673.91218.85277.42561.292.19
160S26.675.5715.53187.10561.292.9
125533.4011.65130.10709.68877.421.29
1033.4012.76927.86612.90877.422.09
3033.4012.89627.61600.00877.422.18
4033.4013.37826.65554.84877.422.5
8033.4014.54724.31464.52877.423.23
16033.4016.3520.70335.48877.424.23
STD33.4013.37826.65554.84877.422.5
XS33.4014.54724.31464.52877.423.23
XXS33.4019.09315.22180.64877.425.45
5S33.4011.65130.10709.68877.421.29
10S33.4012.76927.86612.90877.422.09
40S33.4013.37826.65554.84877.422.5
80S33.4014.54724.31464.52877.423.23
160S33.4016.3520.70335.48877.424.23
1 1/432542.1641.65138.861,187.091,393.551.65
1042.1642.76936.631,051.611,393.552.69
3042.1642.97236.221,032.261,393.552.87
4042.1643.55635.05967.741,393.553.38
8042.1644.85132.46825.801,393.554.46
16042.1646.3529.46683.871,393.555.6
STD42.1643.55635.05967.741,393.553.38
XS42.1644.85132.46825.801,393.554.46
XXS42.1649.70322.76406.451,393.557.76
5S42.1641.65138.861,187.091,393.551.65
10S42.1642.76936.631,051.611,393.552.69
40S42.1643.55635.05967.741,393.553.38
80S42.1644.85132.46825.801,393.554.46
160S42.1646.3529.46683.871,393.555.6
1 1/240548.261.65144.961,587.091,832.251.9
1048.262.76942.721,432.261,832.253.1
3048.263.17541.911,380.641,832.253.53
4048.263.68340.891,316.131,832.254.04
8048.265.0838.101,141.931,832.255.4
16048.267.13733.99909.681,832.257.23
STD48.263.68340.891,316.131,832.254.04
XS48.265.0838.101,141.931,832.255.4
XXS48.2610.1627.94612.901,832.259.54
5S48.261.65144.961,587.091,832.251.9
10S48.262.76942.721,432.261,832.253.1
40S48.263.68340.891,316.131,832.254.04
80S48.265.0838.101,141.931,832.255.4
160S48.267.1433.98909.681,832.257.23
250560.3251.65157.022,554.832,858.062.39
1060.3252.76954.792,354.832,858.063.93
3060.3253.17553.982,290.322,858.064.47
4060.3253.91252.502,167.742,858.065.44
8060.3255.53749.251,903.222,858.067.47
12060.3256.3547.631,780.642,858.068.44
16060.3258.73842.851,445.162,858.0611.1
STD60.3253.91252.502,167.742,858.065.44
XS60.3255.53749.251,903.222,858.067.47
XXS60.32511.07438.181,141.932,858.0613.4
5S60.3251.65157.022,554.832,858.062.39
10S60.3252.76954.792,354.832,858.063.93
40S60.3253.91252.502,167.742,858.065.44
80S60.3255.53749.251,903.222,858.067.47
160S60.3258.7442.851,438.712,858.0611.1
2 1/265573.0252.10868.813,716.124,187.093.68
1073.0253.04866.933,516.124,187.095.25
3073.0254.77563.483,161.284,187.098.03
4073.0255.15662.713,090.324,187.098.62
8073.0257.0159.002,735.484,187.0911.4
12073.0257.6257.792,619.354,187.0912.3
16073.0259.52553.982,290.324,187.0914.9
STD73.0255.15662.713,090.324,187.098.62
XS73.0257.0159.002,735.484,187.0911.4
XXS73.02514.02144.981,587.094,187.0920.4
5S73.0252.10868.813,716.124,187.093.68
10S73.0253.04866.933,516.124,187.095.25
40S73.0255.15662.713,090.324,187.098.62
80S73.0257.0159.002,735.484,187.0911.4
160S73.0259.5353.972,290.324,187.0914.9
380588.92.10884.685,632.256,206.444.51
1088.93.04882.805,387.096,206.446.45
3088.94.77579.354,941.936,206.449.9
4088.95.48677.934,767.736,206.4411.3
8088.97.6273.664,264.516,206.4415.3
12088.98.8971.123,974.196,206.4417.5
16088.911.12566.653,490.326,206.4421.3
STD88.95.48677.934,767.736,206.4411.3
XS88.97.6273.664,264.516,206.4415.3
XXS88.915.2458.422,677.416,206.4427.7
5S88.92.10884.685,632.256,206.444.51
10S88.93.04882.805,387.096,206.446.45
40S88.95.48677.934,767.736,206.4411.3
80S88.97.6273.664,264.516,206.4415.3
160S88.911.1366.643,490.326,206.4421.3
3 1/2905101.62.10897.387,419.348,129.025.17
10101.63.04895.507,161.288,129.027.4
30101.64.77592.056,645.158,129.0211.4
40101.65.7490.126,380.638,129.0213.6
80101.68.07785.455,735.478,129.0218.6
STD101.65.7490.126,380.638,129.0213.6
XS101.68.07785.455,735.478,129.0218.6
XXS101.616.15469.293,767.738,129.0234
5S101.62.10897.387,419.348,129.025.17
10S101.63.04895.507,161.288,129.027.4
40S101.65.7490.126,380.638,129.0213.6
80S101.68.07785.455,735.478,129.0218.6
41005114.32.108110.089,548.3710,258.045.83
10114.33.048108.209,225.7910,258.048.35
30114.34.775104.758,645.1410,258.0412.9
40114.36.02102.268,193.5310,258.0416.1
60114.37.137100.037,870.9510,258.0418.8
80114.38.5697.187,419.3410,258.0422.3
120114.311.192.106,645.1510,258.0428.2
160114.313.48787.335,987.0810,258.0433.5
STD114.36.02102.268,193.5310,258.0416.1
XS114.38.5697.187,419.3410,258.0422.3
XXS114.317.1280.065,032.2510,258.0441
5S114.32.108110.089,548.3710,258.045.83
10S114.33.048108.209,225.7910,258.048.35
40S114.36.02102.268,193.5310,258.0416.1
80S114.38.5697.187,419.3410,258.0422.3
160S114.313.4987.325,987.0810,258.0433.5
4 1/2115401276.274114.4510,258.0412,645.1418.7
801279.017108.979,354.8212,645.1426.2
51255141.30022.769135.7614,451.5815,677.399.45
10141.30023.404134.4914,193.5215,677.3911.6
40141.30026.553128.1912,903.2015,677.3921.8
80141.30029.525122.2511,741.9115,677.3930.9
120141.300212.7115.9010,580.6215,677.3940.2
160141.300215.875109.559,419.3415,677.3949.1
STD141.30026.553128.1912,903.2015,677.3921.8
XS141.30029.525122.2511,741.9115,677.3930.9
XXS141.300219.05103.208,387.0815,677.3957.4
5S141.30022.769135.7614,451.5815,677.399.45
10S141.30023.404134.4914,193.5215,677.3911.6
40S141.30026.553128.1912,903.2015,677.3921.8
80S141.30029.525122.2511,741.9115,677.3930.9
160S141.300215.88109.549,419.3415,677.3949.1
61505168.2752.769162.7420,774.1522,258.0211.3
10168.2753.404161.4720,451.5722,258.0213.8
40168.2757.112154.0518,645.1222,258.0228.2
80168.27510.973146.3316,838.6822,258.0242.5
120168.27514.275139.7315,354.8122,258.0254.2
160168.27518.263131.7513,612.8822,258.0267.5
STD168.2757.112154.0518,645.1222,258.0228.2
XS168.27510.973146.3316,838.6822,258.0242.5
XXS168.27521.946124.3812,129.0122,258.0279.1
5S168.2752.769162.7420,774.1522,258.0211.3
10S168.2753.404161.4720,451.5722,258.0213.8
40S168.2757.112154.0518,645.1222,258.0228.2
80S168.27510.973146.3316,838.6822,258.0242.5
160S168.27518.27131.7413,612.8822,258.0267.5
82005219.0752.769213.5435,806.3837,677.3414.8
10219.0753.759211.5635,161.2237,677.3419.9
20219.0756.35206.3833,419.2937,677.3433.3
30219.0756.35206.3833,419.2937,677.3433.3
40219.0758.179202.7232,258.0037,677.3442.5
60219.07510.312198.4530,903.1637,677.3453
80219.07512.7193.6829,483.8137,677.3464.6
100219.07515.088188.9027,999.9437,677.3475.8
120219.07518.237182.6026,193.5037,677.3490.2
140219.07520.625177.8324,838.6637,677.34101
160219.07523.012173.0523,548.3437,677.34111
STD219.0758.179202.7232,258.0037,677.3442.5
XS219.07512.7193.6829,483.8137,677.3464.6
XXS219.07522.225174.6323,935.4437,677.34108
5S219.0752.769213.5435,806.3837,677.3414.8
10S219.0753.759211.5635,161.2237,677.3419.9
40S219.0758.179202.7232,258.0037,677.3442.5
80S219.07512.7193.6829,483.8137,677.3464.6
160S219.07523.02173.0423,483.8237,677.34111
102505273.053.404266.2455,677.3158,580.5322.6
10273.054.191264.6755,032.1558,580.5327.8
20273.056.35260.3553,225.7058,580.5341.7
30273.057.798257.4552,064.4158,580.5351
40273.059.271254.5150,903.1258,580.5360.2
60273.0512.7247.6548,193.4558,580.5381.5
80273.0515.062242.9346,322.4958,580.5395.7
100273.0518.263236.5343,935.4058,580.53115
120273.0521.412230.2341,612.8258,580.53133
140273.0525.4222.2538,774.1258,580.53155
160273.0528.575215.9036,580.5758,580.53172
STD273.059.271254.5150,903.1258,580.5360.2
XS273.0512.7247.6548,193.4558,580.5381.5
XXS273.0525.4222.2538,774.1258,580.53155
5S273.053.404266.2455,677.3158,580.5322.6
10S273.054.191264.6755,032.1558,580.5327.8
40S273.059.271254.5150,903.1258,580.5360.2
80S273.0512.7247.6548,193.4558,580.5381.5
160S273.0528.58215.8936,580.5758,580.53172
123005323.853.962315.9378,709.5282,580.4831.2
10323.854.572314.7178,064.3682,580.4836
20323.856.35311.1576,128.8882,580.4849.7
30323.858.382307.0974,193.4082,580.4865.1
40323.8510.312303.2372,257.9282,580.4879.7
60323.8512.7298.4569,677.2882,580.4897.4
80323.8517.45288.9565,806.3282,580.48132
100323.8521.438280.9861,999.8882,580.48160
120323.8525.4273.0558,580.5382,580.48187
140323.8528.575266.7055,870.8682,580.48208
160323.8533.325257.2051,935.3882,580.48239
STD323.859.525304.8072,903.0882,580.4873.8
XS323.8512.7298.4569,677.2882,580.4897.4
XXS323.8525.4273.0558,580.5382,580.48187
5S323.853.962315.9378,709.5282,580.4831.2
10S323.854.572314.7178,064.3682,580.4836
40S323.859.525304.8072,903.0882,580.4873.8
80S323.8512.7298.4569,677.2882,580.4897.4
160S323.8533.33257.1951,935.3882,580.48239
143505355.63.962347.6894,838.5299,354.6434.3
10355.66.35342.9092,257.8899,354.6454.6
20355.67.925339.7590,967.5699,354.6467.9
30355.69.525336.5589,032.0899,354.6481.2
40355.611.1333.4087,096.6099,354.6494.2
60355.615.062325.4883,225.6499,354.64126
80355.619.05317.5079,354.6899,354.64158
100355.623.825307.9574,193.4099,354.64195
120355.627.762300.0870,967.6099,354.64224
140355.631.75292.1067,096.6499,354.64253
160355.635.712284.1863,419.2399,354.64281
STD355.69.525336.5589,032.0899,354.6481.2
XS355.612.7330.2085,806.2899,354.64107
5S355.63.962347.6894,838.5299,354.6434.3
10S355.64.775346.0594,193.3699,354.6441.3
40S355.69.525336.5589,032.0899,354.6481.2
80S355.612.7330.2085,806.2899,354.64107
164005406.44.191398.02124,515.88129,677.1641.5
10406.46.35393.70121,935.24129,677.1662.6
20406.47.925390.55119,999.76129,677.1677.8
30406.49.525387.35118,064.28129,677.1693.1
40406.412.7381.00114,193.32129,677.16123
60406.416.662373.08109,032.04129,677.16160
80406.421.412363.58103,870.76129,677.16203
100406.426.187354.0398,709.48129,677.16245
120406.430.937344.5392,903.04129,677.16286
140406.436.525333.3587,096.60129,677.16333
160406.440.462325.4883,225.64129,677.16365
STD406.49.525387.35118,064.28129,677.1693.1
XS406.412.7381.00114,193.32129,677.16123
5S406.44.191398.02124,515.88129,677.1641.5
10S406.44.775396.85123,870.72129,677.1647.2
40S406.49.525387.35118,064.28129,677.1693.1
80S406.412.7381.00114,193.32129,677.16123
184505457.24.191448.82158,064.20163,870.6446.8
10457.26.35444.50155,483.56163,870.6470.5
20457.27.925441.35152,902.92163,870.6487.7
30457.211.1435.00148,386.80163,870.64122
40457.214.275428.65144,515.84163,870.64156
60457.219.05419.10138,064.24163,870.64206
80457.223.8409.60131,612.64163,870.64254
100457.229.362398.48124,515.88163,870.64309
120457.234.925387.35118,064.28163,870.64363
140457.239.675377.85112,257.84163,870.64408
160457.245.237366.73105,806.24163,870.64459
STD457.29.525438.15150,967.44163,870.64105
XS457.212.7431.80146,451.32163,870.64139
5S457.24.191448.82158,064.20163,870.6446.8
10S457.24.775447.65157,419.04163,870.6453.2
40S457.29.525438.15150,967.44163,870.64105
80S457.212.7431.80146,451.32163,870.64139
2050055084.775498.45194,838.32202,580.2459.2
105086.35495.30192,902.84202,580.2478.5
205089.525488.95187,741.56202,580.24117
3050812.7482.60183,225.44202,580.24155
4050815.062477.88179,354.48202,580.24183
6050820.625466.75170,967.40202,580.24248
8050826.187455.63163,225.48202,580.24311
10050832.537442.93154,193.24202,580.24381
12050838.1431.80146,451.32202,580.24441
14050844.45419.10138,064.24202,580.24508
16050849.987408.03130,967.48202,580.24564
STD5089.525488.95187,741.56202,580.24117
XS50812.7482.60183,225.44202,580.24155
5S5084.775498.45194,838.32202,580.2459.2
10S5085.537496.93194,193.16202,580.2468.5
40S5089.525488.95187,741.56202,580.24117
80S50812.7482.60183,225.44202,580.24155
2255010558.86.35546.10234,193.08245,160.8086.4
20558.89.525539.75229,031.80245,160.80129
30558.812.7533.40223,225.36245,160.80171
60558.822.225514.35207,741.52245,160.80294
80558.828.575501.65197,418.96245,160.80373
100558.834.925488.95187,741.56245,160.80451
120558.841.275476.25178,064.16245,160.80526
140558.847.625463.55169,031.92245,160.80600
160558.853.975450.85159,354.52245,160.80671
STD558.89.525539.75229,031.80245,160.80129
XS558.812.7533.40223,225.36245,160.80171
5S558.84.775549.25236,773.72245,160.8065.2
10S558.85.537547.73235,483.40245,160.8075.5
246005609.65.537598.53281,289.76291,612.3282.4
10609.66.35596.90279,999.44291,612.3294.4
20609.69.525590.55274,193.00291,612.32141
30609.614.275581.05265,160.76291,612.32209
40609.617.45574.70259,354.32291,612.32255
60609.624.587560.43246,451.12291,612.32354
80609.630.937547.73235,483.40291,612.32441
100609.638.887531.83221,935.04291,612.32547
120609.646.025517.55210,322.16291,612.32639
140609.652.375504.85199,999.60291,612.32719
160609.659.512490.58189,031.88291,612.32807
STD609.69.525590.55274,193.00291,612.32141
XS609.612.7584.20267,741.40291,612.32187
5S609.65.537598.53281,289.76291,612.3282.4
10S609.66.35596.90279,999.44291,612.3294.4
40S609.69.525590.55274,193.00291,612.32141
80S609.612.7584.20267,741.40291,612.32187
2665010660.47.925644.55326,450.96342,579.96127
20660.412.7635.00316,773.56342,579.96203
STD660.49.525641.35323,225.16342,579.96153
XS660.412.7635.00316,773.56342,579.96203
2870010711.27.925695.35379,999.24397,418.56137
20711.212.7685.80369,676.68397,418.56219
30711.215.875679.45362,579.92397,418.56272
STD711.29.525692.15376,128.28397,418.56165
XS711.212.7685.80369,676.68397,418.56219
30750107627.925746.15437,418.48456,128.12147
2076212.7736.60426,450.76456,128.12234
3076215.875730.25418,708.84456,128.12292
STD7629.525742.95433,547.52456,128.12177
XS76212.7736.60426,450.76456,128.12234
40S7629.525742.95433,547.52456,128.12177
80S76212.7736.60426,450.76456,128.12234
3280010812.87.925796.95498,708.68518,708.64157
20812.812.7787.40487,095.80518,708.64250
30812.815.875781.05479,353.88518,708.64312
40812.817.475777.85475,482.92518,708.64342
STD812.89.525793.75494,837.72518,708.64188
XS812.812.7787.40487,095.80518,708.64250
3485010863.68.738846.13562,579.52585,805.28184
20863.612.7838.20551,611.80585,805.28266
30863.615.875831.85543,224.72585,805.28332
40863.617.475828.65539,353.76585,805.28364
STD863.69.525844.55559,998.88585,805.28200
XS863.612.7838.20551,611.80585,805.28266
3690010914.47.925898.55634,192.28658,063.20177
20914.412.7889.00620,643.92658,063.20282
30914.415.875882.65611,611.68658,063.20351
40914.419.05876.30603,224.60658,063.20420
STD914.49.525895.35629,676.16658,063.20212
XS914.412.7889.00620,643.92658,063.20282
40S914.49.525895.35629,676.16658,063.20212
80S914.412.7889.00620,643.92658,063.20282
421050201066.812.71,041.40851,611.20896,772.40330
301066.815.8751,035.05838,708.00896,772.40411
401066.819.051,028.70832,256.40896,772.40492
STD1066.89.5251,047.75864,514.40896,772.40248
XS1066.812.71,041.40851,611.20896,772.40330