Tuesday, January 4, 2022

ASME/ANSI B36.10/19: Carbon, Alloy and Stainless Steel Pipes

The steel pipe data chart below can be used to find pipe sizes, diameters, wall thickness, working pressures and more The chart is based on ASME/ANSI B 36.10 Welded and Seamless Wrought Steel Pipe and ASME/ANSI B36.19 Stainless Steel Pipe.

Regardless of schedule number, pipes of a particular size all have the same outside diameter (not withstanding manufacturing tolerances). As the schedule number increases, the wall thickness increases, and the actual bore is reduced. For example:

  • A 4 inches (100 mm) Schedule 40 pipe has an outside diameter of 4.500 inches (114.30 mm), a wall thickness of 0.237 inches (6.02 mm), giving a bore of 4.026 inches (102.26 mm)
  • A 4 inches (100 mm) Schedule 80 pipe has an outside diameter of 4.500 inches ( 114.30 mm), a wall thickness of 0.337 inches (8.56 mm), giving a bore of 3.826 inches (97.18 mm)

Outside Diameter, Identification, Wall Thickness, Inside Diameter

  • Area of Metal, Transverse Internal Area, Moment of Inertia, Weight Pipe, Weight Water, External Surface, Elastic Section Modulus

Pipe Size
(inches)
Outside Diameter
(inches)
IdentificationWall Thickness 
– t –
(inches)
Inside Diameter
– d –
(inches)
SteelStainless Steel Schedule No.
Iron Pipe SizeSchedule No.
1/80.405.
STD
XS
.
40
80
10S
40S
80S
0.049
0.068
0.095
0.307
0.269
0.215
1/40.540.
STD
XS

40
80
10S
40S
80S
0.065
0.088
0.119
0.410
0.364
0.302
3/80.675.
STD
XS
.
40
80
10S
40S
80S
0.065
0.091
0.126
0.545
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
0.294
0.710
0.674
0.622
0.546
0.466
0.252
3/41.050.
.
STD
XS
.
XXS
.
.
40
80
160
.
5S
10S
40S
80S
.
.
0.065
0.083
0.113
0.154
0.219
0.308
0.920
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
0.358
1.185
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
0.382
1.530
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
0.400
1.770
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
0.436
2.245
2.157
2.067
1.939
1.687
1.503

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