Om Poonam Metal Overseas

Reference

ASME Standards We Supply Against

Every pipe, fitting and flange we stock is identified against a dimensional standard and a material specification. This page is a working reference — not a substitute for the official standard.

Gallery

ASME B36.19 Pipe in Detail

Pipe Dimensions

B36.10M & B36.19M

The two dimensional standards behind every pipe size we quote.

ASME B36.10M

Welded and Seamless Wrought Steel Pipe

Dimensional standard covering outside diameter, wall thickness (schedule) and weight for carbon and alloy steel pipe, from NPS 1/8 to NPS 80.

ASME B36.19M

Stainless Steel Pipe

Companion standard to B36.10M for stainless steel pipe. Shares the same outside-diameter series and adds the 5S / 10S / 40S / 80S lighter-wall schedules common to stainless material.

Fittings & Flanges

B16-series standards

Governing dimensions, ratings and gasket compatibility for fittings and flanges.

ASME B16.5

Pipe Flanges and Flanged Fittings

Covers flange types, face finishes, and pressure–temperature ratings for Classes 150 to 2500, NPS 1/2 through NPS 24.

ASME B16.47

Large Diameter Steel Flanges

Extends flange coverage to large-bore piping, NPS 26 through NPS 60, Series A and B.

ASME B16.9

Factory-Made Wrought Buttwelding Fittings

Dimensional standard for buttweld elbows, tees, reducers, caps and stub ends manufactured to match pipe wall schedules.

ASME B16.11

Forged Fittings, Socket-Welding and Threaded

Covers forged socket-weld and threaded fittings — elbows, tees, couplings, unions — for smaller bore, higher-pressure piping.

ASME B16.20

Metallic Gaskets for Pipe Flanges

Specifies spiral-wound, ring-joint and other metallic gasket types used with B16.5 and B16.47 flanges.

Material Specifications

Paired ASTM specs

Dimensional standards define shape; these ASTM specifications define the material each part is made of.

ASTM A312 / A182

Stainless Steel Pipe & Forged Fittings/Flanges

Material specifications most often paired with B36.19M dimensions — A312 for seamless/welded pipe, A182 for forged flanges and fittings.

ASTM A358 / A778

Welded Austenitic Pipe

Electric-fusion-welded and lightly-worked stainless pipe specifications used for larger diameters and lower-pressure service.

ASTM A240

Stainless & Heat-Resisting Steel Plate, Sheet and Strip

The governing material specification for the flat stainless products we stock and supply.

ASTM A106 / A53

Carbon Steel Pipe for High-Temperature / General Service

The two most common carbon steel pipe specifications — A106 for seamless pipe in higher-temperature process service, A53 covering both welded and seamless for general piping.

ASTM A333

Seamless & Welded Steel Pipe for Low-Temperature Service

Covers pipe intended to stay tough and crack-resistant at sub-zero service temperatures, common in cryogenic and refrigeration lines.

ASTM A335

Seamless Ferritic Alloy Steel Pipe for High-Temperature Service

The specification behind our P5 / P9 / P11 / P22 / P91 alloy pipe grades, used across high-temperature process and power piping.

ASTM A213

Seamless Ferritic Alloy Steel Boiler & Heat-Exchanger Tube

The tube-form companion to A335 — covers our T9 / T11 / T22 / T91 alloy tube grades for boiler and heat-exchanger service.

ASTM A210

Seamless Carbon Steel Boiler & Superheater Tube

The carbon steel specification behind the boiler tube we stock, for medium and high-pressure boiler applications.

ASTM A999

General Requirements for Alloy & Stainless Steel Pipe

The umbrella specification setting common requirements — tolerances, testing, marking — that grade-specific pipe standards like A312 and A790 build on.

ASTM A790 / A928

Duplex & Super Duplex Stainless Pipe

Covers seamless and welded duplex/super duplex pipe — the material specification behind our Duplex 2205 and Super Duplex 2507 stock.

ASTM A409

Welded Large-Diameter Austenitic Steel Pipe

Covers large-diameter, lighter-wall austenitic stainless pipe for corrosive or high-temperature service.

ASTM A694

Carbon & Alloy Steel Forgings for Flanges, Fittings & Valves

Material specification for high-pressure transmission-service forgings, relevant to our flange and forged fitting range.

ASTM A984 / API 5L

Line Pipe

Governs black, plain-end steel line pipe for oil, gas and water transmission — the specification family behind our API 5L stock.

Quick Reference

Dimensions & pressure classes

NPS → Outside Diametermm, fixed by standard
NPSDNO.D. (mm)
1/2"1521.3
3/4"2026.7
1"2533.4
1 1/2"4048.3
2"5060.3
3"8088.9
4"100114.3
6"150168.3
8"200219.1
10"250273.0
12"300323.9
ASME B16.5 Pressure Classes
Class 150Class 300Class 600Class 900Class 1500Class 2500

Allowable working pressure for each class falls as design temperature rises, and varies by material group. For binding design figures, always confirm against the current edition of ASME B16.5 for your specific material and temperature.

This page is a working reference for procurement conversations. It is not a substitute for the current, official ASME/ASTM standard — always verify wall thickness, pressure rating and material grade against the governing standard and your engineer’s specification before ordering or fabrication.

Full Reference Tables

ASME B36.19 — Complete Dimensional & Weight Data

Specification summary, dimensions by NPS, allowable stress by temperature, and weight charts across the full size range.

Overview

ASME B36.19 Pipe — Specification Summary

FieldValue
GradeTP304, TP316/316L
StandardASTM A312/A358/A778, ASME B36.19M, ASME B36.10M
O.D.1/4"
W.T.SCH-5S, SCH-10S, SCH-80S, SCH-5, SCH-10, SCH-20, STD, XS
Manufacture MethodTIG or TIG + Plasma or Laser or Seamless
ApplicationChemical & Petrochemical use etc.
PackingSea Worthy Bundle or Steel Create
Dimensions

ASME B36.19 Dimensions — NPS 1/8″ to 1/2″

NPSDNO.D. (in / mm)ScheduleWall (in / mm)Weight (lb/ft / kg/m)
1/860.405 / 10.35S......
1/860.405 / 10.310S0.049 / 1.240.19 / 0.28
1/860.405 / 10.340S0.068 / 1.730.24 / 0.37
1/860.405 / 10.380S0.095 / 2.410.31 / 0.47
1/480.540 / 13.75S......
1/480.540 / 13.710S0.065 / 1.650.33 / 0.49
1/480.540 / 13.740S0.088 / 2.240.43 / 0.63
1/480.540 / 13.780S0.119 / 3.020.54 / 0.80
3/8100.675 / 17.15S......
3/8100.675 / 17.110S0.065 / 1.650.42 / 0.63
3/8100.675 / 17.140S0.091 / 2.310.57 / 0.84
3/8100.675 / 17.180S0.126 / 3.200.74 / 1.10
1/2150.840 / 21.35S0.065 / 1.650.54 / 0.80
1/2150.840 / 21.310S0.083 / 2.110.67 / 1.00
1/2150.840 / 21.340S0.109 / 2.770.85 / 1.27

ASME B36.19 Wall Thickness & Weight — NPS 8″ to 14″

NPS / (DN)ScheduleO.D. (in / mm)Wall (in / mm)Mass (lb/ft / kg/m)
8 / 2005S8.625 / 219.10.109 / 2.77 /9.92 / 14.78
8 / 20010S8.625 / 219.10.148 / 3.7613.41 / 19.97
8 / 20040S8.625 / 219.10.322 / 8.1828.58 / 42.55
8 / 20080S8.625 / 219.10.500 / 12.7043.43 / 64.64
10 / 2505S10.750 / 273.00.134 / 3.4015.21 / 22.61
10 / 25010S10.750 / 273.00.165 / 4.1918.67 / 27.78
10 / 25040S10.750 / 273.00.365 / 9.2740.52 / 60.29
10 / 25080S10.750 / 273.00.500 / 12.7054.79 / 81.53
12 / 3005S12.750 / 323.80.156 / 3.9621.00 / 31.24
12 / 30010S12.750 / 323.80.180 / 4.5724.19 / 35.98
12 / 30040S12.750 / 323.80.375 / 9.5349.61 / 73.86
12 / 30080S12.750 / 323.80.500 / 12.7065.48 / 97.44
14 / 3505S14.000 / 355.60.156 / 3.9623.09 / 34.34
14 / 35010S14.000 / 355.60.188 / 4.7827.76 / 41.36
14 / 35040S14.000 / 355.60.375 / 9.5354.62 / 81.33

ASME B36.19 Schedule Reference — Wall Thickness & I.D. by Size

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Pipe Size (in)O.D. (in)Iron Pipe SizeSchedule No.SS Schedule No.Wall Thickness (in)Inside Diameter (in)
1/80.405. / STD / XS. / 40 / 8010S / 40S / 80S0.049 / 0.068 / 0.0950.307 / 0.269 / 0.215
1/40.540. / STD / XS. / 40 / 8010S / 40S / 80S0.065 / 0.088 / 0.1190.410 / 0.364 / 0.302
3/80.675. / STD / XS. / 40 / 8010S / 40S / 80S0.065 / 0.091 / 0.1260.545 / 0.493 / 0.423
1/20.840. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.065 / 0.083 / 0.109 / 0.147 / 0.187 / 0.2940.710 / 0.674 / 0.622 / 0.546 / 0.466 / 0.252
3/4/ 1.050. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.065 / 0.083 / 0.113 / 0.154 / 0.219 / 0.3080.920 / 0.884 / 0.824 / 0.742 / 0.612 / 0.434
11.315. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.065 / 0.109 / 0.133 / 0.179 / 0.250 / 0.3581.185 / 1.097 / 1.049 / 0.957 / 0.815 / 0.599
1 1/41.660. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.065 / 0.109 / 0.140 / 0.191 / 0.250 / 0.3821.530 / 1.442 / 1.380 / 1.278 / 1.160 / 0.896
1 1/21.900. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.065 / 0.109 / 0.145 / 0.200 / 0.281 / 0.4001.770 / 1.682 / 1.610 / 1.500 / 1.338 / 1.100
22.375. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.065 / 0.109 / 0.154 / 0.218 / 0.344 / 0.4362.245 / 2.157 / 2.067 / 1.939 / 1.687 / 1.503
2 1/22.875. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.083 / 0.120 / 0.203 / 0.276 / 0.375 / 0.5522.709 / 2.635 / 2.469 / 2.323 / 2.125 / 1.771
33.500. / . / STD / XS / . / XXS. / . / 40 / 80 / 160 / .5S / 10S / 40S / 80S / . / .0.083 / 0.120 / 0.216 / 0.300 / 0.438 / 0.6003.334 / 3.260 / 3.068 / 2.900 / 2.624 / 2.300
3 1/24.000. / . / STD / XS. / . / 40 / 805S / 10S / 40S / 80S0.083 / 0.120 / 0.226 / 0.3183.834 / 3.760 / 3.548 / 3.364
44.500. / . / STD / XS / . / . / XXS. / . / 40 / 80 / 120 / 160 / .5S / 10S / 40S / 80S / . / . / .0.083 / 0.120 / 0.237 / 0.337 / 0.438 / 0.531 / 0.6744.334 / 4.260 / 4.026 / 3.826 / 3.624 / 3.438 / 3.152
55.563. / . / STD / XS / . / . / XXS. / . / 40 / 80 / 120 / 160 / .5S / 10S / 40S / 80S / . / . / .0.109 / 0.134 / 0.258 / 0.375 / 0.500 / 0.625 / 0.7505.345 / 5.295 / 5.047 / 4.813 / 4.563 / 4.313 / 4.063
66.625. / . / STD / XS / . / . / XXS. / . / 40 / 80 / 120 / 160 / .5S / 10S / 40S / 80S / . / . / .0.109 / 0.134 / 0.280 / 0.432 / 0.562 / 0.718 / 0.8646.407 / 6.357 / 6.065 / 5.761 / 5.501 / 5.189 / 4.897
88.625. / . / . / . / STD / . / XS / . / . / . / XXS / .. / . / 20 / 30 / 40 / 60 / 80 / 100 / 120 / 140 / . / 1605S / 10S / . / . / 40S / . / 80S / . / . / . / . / .0.109 / 0.148 / 0.250 / 0.277 / 0.322 / 0.406 / 0.500 / 0.594 / 0.719 / 0.812 / 0.875 / 0.9068.407 / 8.329 / 8.125 / 8.071 / 7.981 / 7.813 / 7.625 / 7.437 / 7.187 / 7.001 / 6.875 / 6.813
1010.750. / . / . / . / STD / XS / . / . / . / . / .. / . / 20 / 30 / 40 / 60 / 80 / 100 / 120 / 140 / 1605S / 10S / . / . / 40S / 80S / . / . / . / . / .0.134 / 0.165 / 0.250 / 0.307 / 0.365 / 0.500 / 0.594 / 0.719 / 0.844 / 1.000 / 1.12510.482 / 10.420 / 10.250 / 10.136 / 10.020 / 9.750 / 9.562 / 9.312 / 9.062 / 8.750 / 8.500
1212.75. / . / . / . / STD / . / XS / . / . / . / . / . / .. / . / 20 / 30 / . / 40 / . / 60 / 80 / 100 / 120 / 140 / 1605S / 10S / . / . / 40S / . / 80S / . / . / . / . / . / .0.156 / 0.180 / 0.25 / 0.330 / 0.375 / 0.406 / 0.500 / 0.562 / 0.688 / 0.844 / 1.000 / 1.125 / 1.31212.438 / 12.390 / 12.250 / 12.090 / 12.000 / 11.938 / 11.750 / 11.626 / 11.374 / 11.062 / 10.750 / 10.500 / 10.126
1414.00. / . / . / . / STD / . / XS / . / . / . / . / . / ... / . / 10 / 20 / 30 / 40 / . / 60 / 80 / 100 / 120 / 140 / 1605S / 10S / . / . / . / . / . / . / . / . / . / . / .0.156 / 0.188 / 0.250 / 0.312 / 0.375 / 0.438 / 0.500 / 0.594 / 0.750 / 0.938 / 1.094 / 1.250 / 1.40613.688 / 13.624 / 13.500 / 13.376 / 13.250 / 13.124 / 13.000 / 12.812 / 12.500 / 12.124 / 11.812 / 11.500 / 11.188
1616.00. / . / . / . / STD / XS / . / . / . / . / . / .. / . / 10 / 20 / 30 / 40 / 60 / 80 / 100 / 120 / 140 / 1605S / 10S / . / . / . / . / . / . / . / . / . / .0.165 / 0.188 / 0.250 / 0.312 / 0.375 / 0.500 / 0.656 / 0.844 / 1.031 / 1.219 / 1.438 / 1.59415.670 / 15.624 / 15.500 / 15.376 / 15.250 / 15.000 / 14.688 / 14.312 / 13.938 / 13.562 / 13.124 / 12.812
1818.00. / . / . / . / STD / . / XS / . / . / . / . / . / . / .. / . / 10 / 20 / . / 30 / . / 40 / 60 / 80 / 100 / 120 / 140 / 1605S / 10S / . / . / . / . / . / . / . / . / . / . / . / .0.165 / 0.188 / 0.250 / 0.312 / 0.375 / 0.438 / 0.500 / 0.562 / 0.750 / 0.938 / 1.156 / 1.375 / 1.562 / 1.78117.670 / 17.624 / 17.500 / 17.376 / 17.250 / 17.124 / 17.000 / 16.876 / 16.500 / 16.124 / 15.688 / 15.250 / 14.876 / 14.438
Allowable Stress

ASME B36.19 Allowable Stress by Temperature (psi)

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Pipe Size (in)ScheduleO.D. (in)Wall Thickness (in)100°F200°F300°F400°F500°F600°F650°F700°F750°F
1"401.3150.133220522052205204719021783174317031664
1"801.3150.179306130613061284126402475242023652310
1"1601.3150.250449344934493417038743632355234713390
1 1/2"401.9000.145162916291629151214041317128712581229
1 1/2"801.9000.200230323032303213819861862182117791738
1 1/2"1601.9000.281336233623362312028992717265725972536
2"402.3750.154137113711371127211821108108310591034
2"802.3750.218198519851985184317121605156915341498
2"1602.3750.344328332833283304728312654259525362477
3"403.5000.21613011301130112081122105210281005982
3"803.5000.300184418441844171215901491145814251391
3"1603.5000.438278727872787258724032253220321532103
4"404.5000.2371102110211021023950891871851831
4"804.5000.337159615961596148213771291126212331204
4"1604.5000.531261126112611242425522111206420171970
5"405.5630.258965965965896832780763746728
5"805.5630.375142814281428132512311154112911031077
5"1605.5630.625247424742474229621332000195519111866
6"406.6250.280877877877814756709693677661
6"806.6250.432137913791379128011891115109010651040
6"1606.6250.719238223822382221120541925188318401797
8"408.6250.322771771771716665623610596582
8"808.6250.50012181218121811311050985963941919
8"1608.6250.906229822982298213319821858181717751734
10"4010.7500.365699699699649603565553540528
10"8010.7500.5941159115911591075999937916895874
10"16010.7501.125228922892289212419741850180917681727
Weight Charts

ASME B36.19 Pipe Weight (kg/m) — NPS ½″ to 2″

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Schedule1/2"3/4"1"1 1/4"1 1/2"2"
O.D. (mm)21.326.733.442.248.360.3
Sch 5 PIPE WEIGHTS0.801.031.291.651.902.39
Sch 10 PIPE WEIGHTS1.001.282.092.693.113.93
Sch 20 PIPE WEIGHTS..................
Sch 30 PIPE WEIGHTS1.121.442.182.873.534.48
STD PIPE WEIGHTS1.271.692.503.394.055.44
Sch 40 PIPE WEIGHTS1.271.692.503.394.055.44
Sch 60 PIPE WEIGHTS..................
XS PIPE WEIGHTS1.622.203.244.475.417.48
Sch 80 PIPE WEIGHTS1.622.203.244.475.417.48
Sch 100 PIPE WEIGHTS..................
Sch 120 PIPE WEIGHTS..................
Sch 140 PIPE WEIGHTS..................
XXS PIPE WEIGHTS2.553.645.457.779.5513.44
Sch 160 PIPE WEIGHTS1.952.904.245.617.2511.11

ASME B36.19 Pipe Weight (kg/m) — NPS 2½″ to 5″

Schedule2 1/2"3"3 1/2"4"5"
O.D. (mm)7388.9101.6114.3141.3
Sch 53.694.525.185.849.46
Sch 5S.........5.849.46
Sch 105.266.467.418.3711.56
Sch 10S8.3711.56
Sch 20...............
Sch 308.049.9211.4112.91...
STD8.6311.2913.5716.0821.77
Sch 408.6311.2913.5716.0821.77
Sch 40S.........16.0821.77
Sch 60...............
XS11.4115.2718.6422.3230.97
Sch 8011.4115.2718.6422.3230.97
Sch 80S.........22.3230.97
Sch 100...............
Sch 120.........28.3240.28
Sch 140...............
XXS20.3927.68...41.0357.43
Sch 16014.9221.35...33.5449.12

ASME B36.19 Pipe Weight (kg/m) — NPS 6″ to 12″

Schedule6"8"10"12"
O.D. (mm)168.3219273323.9
Sch 511.3114.7822.6131.24
Sch 5S11.3114.7822.6131.24
Sch 1013.8329.9727.7935.98
Sch 10S13.8329.9727.7935.98
Sch 20...33.3241.7649.71
Sch 30...36.8251.0165.19
STD28.2642.5560.2973.86
Sch 4028.2642.5560.2979.71
Sch 40S28.2642.5560.2973.86
Sch 60...53.0981.53108.93
XS42.5664.6481.5397.44
Sch 8042.5664.6495.98132.05
Sch 80S43.5664.6481.5397.44
Sch 100...75.92114.71159.87
Sch 12054.2190.44133.01186.92
Sch 140...100.93155.10208.08
XXS79.22107.93155.10186.92
Sch 16067.57111.27172.27238.69

ASME B36.19 Pipe Weight (kg/m) — NPS 14″ to 18″

Schedule14"16"18"
O.D. (mm)355.6406.04457.2
Sch 534.3441.5646.79
Sch 5S34.3441.5646.79
Sch 1054.6962.6570.57
Sch 10S41.3647.3453.31
Sch 2067.9177.8387.71
Sch 3081.3393.27122.38
STD81.3393.27105.17
Sch 4094.55123.21155.81
Sch 40S81.3393.27...
Sch 60126.72160.13205.75
XS107.40123.21139.16
Sch 80158.11203.54254.57
Sch 80S107.40123.21...
Sch 100194.98245.57309.64
Sch 120224.66286.66363.58
Sch 140253.58333.21408.28
XXS.........
Sch 160281.72365.38459.39

Figures above are a working reference, not a substitute for the current, official ASME B36.19M standard. Always verify wall thickness, weight and allowable stress against the governing standard and your engineer’s specification before ordering or fabrication.

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