sch 40 pipe schedule 40 chart,sch 40 dimensions,sch 40 weight and pipe wall thickness

sch 40 pipe schedule 40 chart,dimensions,sch 40 weight and pipe wall thickness

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Schedule 40 Pipe

SCH 5 Pipes / SCH 10 Pipes / SCH 20 Pipes / SCH 30 Pipes / SCH 40 Pipes / SCH 60 Pipes / SCH 80 Pipes / SCH 100 Pipes / SCH 120 Pipes / SCH 140 Pipes / SCH 160 Pipes

Pipes schedule 40 chart, dimensions, weight and pipe wall thickness and Steel Metal Weight Calculator

Pipes schedule 40 chart gives dimensions of steel pipes schedule 40. Chart includes sizes in inches and in millimeters.

Nominal size [inches] Outside diameter [inches] Outside diameter [mm] Wall thickness [inches] Wall thickness [mm] Weight [lb/ft] Weight [kg/m]
1/8 0,405 10,3 0,068 1,73 0,24 0,37
1/4 0,540 13,7 0,088 2,24 0,42 0,84
1/2 0,840 21,3 0,109 2,77 0,85 1,27
3/4 1,050 26,7 0,113 2,87 1,13 1,69
1 1,315 33,4 0,133 3,38 1,68 2,50
1 1/4 1,660 42,2 0,140 3,56 2,27 3,39
1 1/2 1,900 48,3 0,145 3,68 2,72 4,05
2 2,375 60,3 0,154 3,91 3,65 5,44
2 1/2 2,875 73,0 0,203 5,16 5,79 8,63
3 3,500 88,9 0,216 5,49 7,58 11,29
3 1/2 4,000 101,6 0,226 5,74 9,11 13,57
4 4,500 114,3 0,237 6,02 10,79 16,07
5 5,563 141,3 0,258 6,55 14,62 21,77
6 6,625 168,3 0,280 7,11 18,97 28,26
8 8,625 219,1 0,322 8,18 28,55 42,55
10 10,750 273,0 0,365 9,27 40,48 60,31
12 12,750 323,8 0,406 10,31 53,52 79,73
14 14 355,6 0,375 11,13 54,57 94,55
16 16 406,4 0,500 12,70 82,77 123,30
18 18 457,0 0,562 14,27 104,67 155,80
20 20 508,0 0,594 15,09 123,11 183,42
24 24 610,0 0,688 17,48 171,29 255,41
32 32 813,0 0,688 17,48 230,08 342,91

What is the meaning of Schedule 40 pipe?

Based on the NPS and schedule of a pipe, the pipe outside diameter (OD) and wall thickness can be obtained from reference tables such as those below, which are based on ASME standards B36.10M and B36.19M. For example, NPS 14 Sch 40 has an OD of 14 inches (360 mm) and a wall thickness of 0.437 inches (11.1 mm).

NPS OD Schedule # Wall Thickness ID. 1.000” 1.315” SCH 40 0.133” 1.049” (approx.) 1.000” 1.315” SCH 80 0.179” 0.957” (approx.) All pipes are specified using the NPS and schedule numbers. It is the schedule number that determines the approximate inside diameter.

WHAT DO PIPE SCHEDULES MEAN?

What are Pipe Schedules?

The schedule number on pipe products relates to the thickness of the wall on the pipe: as the number increases, the thicker the wall thickness becomes. Also, while the schedule number can be the same on different sized pipes, the actual wall thickness will be different. Here are a few examples:

Pipe size 1.000” Schedule 40 – The actual wall thickness is 0.133”

Pipe size 2.000” Schedule 40 – The actual wall thickness is 0.145”

Pipe size 1.000” Schedule 80 – The actual wall thickness is 0.179”

Pipe size 2.000” Schedule 80 – The actual wall thickness is 0.218”

What we can see here is that the schedule number increases the wall size, and that the wall thickness changes based on the nominal pipe size (NPS).

The best way to see the relationship between pipe size, schedules and wall thicknesses is simply to refer to a conversion chart (below):

pipe schedules

There are several schedule numbers used on pipe, such as schedules:  5, 5S, 10, 20, 30, 40, 60, 80, 100, 120, 140, 160, STD, XS and XXS. The most common ones used are schedules 40 and 80

What does Nominal Pipe Size or NPS mean?

The NPS size represents the approximate inside diameter (not outside) of the pipe; if the schedule number on a set size is changed, it does effect the inside diameter (ID) but not the outside diameter (OD). In 1927 the American Standard Association replaced the previously used Iron Pipe Sizing (IPS) with Nominal Pipe Sizing (NPS).  This North American standard is used on pipes for high or low pressures and temperatures.   Example:

NPS                        OD                          Schedule #          Wall Thickness           ID

1.000”                   1.315”                   SCH 40                  0.133”                         1.049” (approx.)

1.000”                   1.315”                   SCH 80                  0.179”                         0.957” (approx.)

All pipes are specified using the NPS and schedule numbers. It is the schedule number that determines the approximate inside diameter.

Based on ASTM A53 - Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless.

Pipe Size 
(in)
Diameter
(in)
Nominal Thickness 
(in)

Transverse Areas
(in2)
Length of Pipe
(ft per sq. foot of surface)
Volume
(ft3/ft)
Weight Number of Threads per inch of Screw
External Internal External Internal Steel External Surface
(ft)
Internal Surface 
(ft)
(lb/ft) (kg/m)
1/8 0.405 0.27 0.07 0.13 0.06 0.07 9.43 14.20 0.0004 0.24 0.36 27
¼ 0.540 0.36 0.09 0.23 0.10 0.13 7.07 10.49 0.0007 0.42 0.63 18
3/8 0.675 0.49 0.09 0.36 0.19 0.17 5.66 7.75 0.0013 0.57 0.84 18
½ 0.840 0.62 0.11 0.55 0.30 0.25 4.55 6.14 0.0021 0.85 1.26 14
¾ 1.050 0.82 0.11 0.87 0.53 0.33 3.64 4.64 0.0037 1.13 1.68 14
1 1.315 1.05 0.13 1.36 0.86 0.49 2.90 3.64 0.0060 1.68 2.50 11 ½
1 ¼ 1.660 1.38 0.14 2.16 1.50 0.67 2.30 2.77 0.0104 2.27 3.38 11 ½
1 ½ 1.900 1.61 0.15 2.84 2.04 0.80 2.01 2.37 0.0141 2.72 4.04 11 ½
2 2.375 2.07 0.15 4.43 3.36 1.08 1.61 1.85 0.0233 3.65 5.43 11 ½
2 ½ 2.875 2.47 0.20 6.49 4.79 1.70 1.33 1.55 0.0333 5.79 8.62 8
3 3.500 3.07 0.22 9.62 7.39 2.23 1.09 1.25 0.0513 7.58 11.27 8
3 ½ 4.000 3.55 0.23 12.56 9.89 2.68 0.95 1.08 0.0687 9.11 13.56 8
4 4.500 4.03 0.24 15.90 12.73 3.17 0.85 0.95 0.0884 10.79 16.06 8
5 5.563 5.05 0.26 24.30 20.00 4.30 0.69 0.76 0.1389 14.61 21.74 8
6 6.625 6.07 0.28 34.47 28.89 5.58 0.58 0.63 0.2006 18.97 28.23 8
8 8.625 7.98 0.32 58.42 50.02 8.40 0.44 0.48 0.3552 28.55 42.49 8
10 10.750 10.02 0.37 90.76 78.85 11.90 0.36 0.38 0.5476 40.48 60.24 8
12 12.750 11.94 0.41 127.64 111.90 15.74 0.30 0.32 0.7763 53.60 79.77 8
14 14.000 13.13 0.44 153.94 135.30 18.64 0.27 0.28 0.9354 63.00 93.75 8
16 16.000 15.00 0.50 201.05 176.70 24.35 0.24 0.25 1.2230 78.00 116.08 8
18 18.000 16.88 0.56 254.85 224.00 30.85 0.21 0.23 1.5550 105.00 156.26 8
20 20.000 18.81 0.59 314.15 278.00 36.15 0.19 0.20 1.9260 123.00 183.05 8
24 24.000 22.63 0.69 452.40 402.10 50.30 0.16 0.17 2.7930 171.00 254.48 8

ASTM A53 pipe - also referred to as ASME SA53 pipe - is intended for mechanical and pressure applications. Can be used in steam, water, gas and air lines. Suitable for welding and forming like coiling, bending and flanging.

  • 1 in2 = 645.2 mm2 = 6.452 cm2 = 6.452x10-4 m2
  • 1 ft (foot) = 0.3048 m

Stainless Steel / Aluminum / Carbon Steel Schedule 10, 40, 80 Pipe Dimensions

Pipe
Size*
O.D.
(in.)
Schedule (10, 40, 80)
Wall Thickness (in.)**
Sch.10 Sch.40 Sch.80
Wall (in) I.D. (in) Wall (in) I.D. (in) Wall (in) I.D. (in)
 
1/8" 0.41 od 0.049 in 0.312 id 0.07 in 0.269 id    
Weight
(lbs/ft.)
Steel 0.183 lbs/ft 0.247 lbs/ft  
Stainless
Aluminum      
1/4" 0.54 od 0.065 in 0.410 id 0.090 in 0.364 id 0.119 in 0.302 id
Weight
(lbs/ft.)
Steel 0.333 lbs/ft 0.429 lbs/ft 0.535 lbs/ft
Stainless
Aluminum   0.147 lbs/ft  
3/8" 0.675 od 0.065 in 0.545 id 0.091 in 0.493 id 0.126 in 0.423 id
Weight
(lbs/ft.)
Steel 0.420 lbs/ft 0.570 lbs/ft 0.740 lbs/ft
Stainless
Aluminum   0.196 lbs/ft  
1/2" 0.840 od 0.083 in 0.674 id 0.109 in 0.622 id 0.147 in 0.546 id
Weight
(lbs/ft.)
Steel 0.670 lbs/ft 0.850 lbs/ft 1.090 lbs/ft
Stainless
Aluminum   0.294 lbs/ft 0.384 lbs/ft
3/4" 1.050 od 0.083 in 0.884 id 0.113 in 0.824 id 0.154 in 0.742 id
Weight
(lbs/ft.)
Steel 0.86 lbs/ft 1.13 lbs/ft 1.48 lbs/ft
Stainless
Aluminum   0.391 0.520
1" 1.315 od 0.109 in 1.097 id 0.133 in 1.049 id 0.179 in 0.957 id
Weight
(lbs/ft.)
Steel 1.41 lbs/ft 1.68 lbs/ft 2.17 lbs/ft
Stainless
Aluminum 0.481 lbs/ft 0.581 lbs/ft 0.781 lbs/ft
1-1/4" 1.66 od 0.109 in 1.442 id 0.140 in 1.380 id 0.191 in 1.278 id
Weight
(lbs/ft.)
Steel 1.81 lbs/ft 2.27 lbs/ft 3.00 lbs/ft
Stainless
Aluminum 0.618 lbs/ft 0.785 lbs/ft 1.040 lbs/ft
1-1/2" 1.90 od 0.109 in 1.682 id 0.145 in 1.610 id 0.200 in 1.500 id
Weight
(lbs/ft.)
Steel 2.09 lbs/ft 2.72 lbs/ft 3.63 lbs/ft
Stainless
Aluminum 0.714 lbs/ft 0.939 lbs/ft 1.260 lbs/ft
2" 2.375 od 0.109 in 2.157 id 0.154 in 2.067 id 0.218 in 1.939 id
Weight
(lbs/ft.)
Steel 2.64 lbs/ft 3.66 lbs/ft 5.03 lbs/ft
Stainless
Aluminum 0.903 lbs/ft 1.260 lbs/ft 1.740 lbs/ft
2-1/2" 2.875 od 0.120 in 2.635 id 0.203 in 2.469 id 0.276 in 2.323 id
Weight
(lbs/ft.)
Steel 3.53 lbs/ft 5.80 lbs/ft 7.67 lbs/ft
Stainless
Aluminum 1.209 lbs/ft 2.000 lbs/ft  
3" 3.50 od 0.120 in 3.26 id 0.216 in 3.068 id 0.30 in 2.90 id
Weight
(lbs/ft.)
Steel 4.34 lbs/ft 7.58 lbs/ft 10.26 lbs/ft
Stainless
Aluminum 1.483 lbs/ft 2.620 lbs/ft 3.55 lbs/ft
3-1/2" 4.00 od 0.120 in 3.76 id 0.226 in 3.550 id 0.318 in 3.360 id
Weight
(lbs/ft.)
Steel 4.98 lbs/ft 9.12 lbs/ft 12.52 lbs/ft
Stainless
Aluminum   3.150 lbs/ft 4.33 lbs/ft
4" 4.50 od 0.120 in 4.26 id 0.237 in 4.026 id 0.337 in 3.826 id
Weight
(lbs/ft.)
Steel 5.62 lbs/ft 10.80 lbs/ft 15.00 lbs/ft
Stainless
Aluminum 1.922 lbs/ft 3.730 lbs/ft 5.180 lbs/ft
5" 5.563 od 0.134 in 5.295 id 0.258 in 5.047 id 0.375 in 4.813 id
Weight
(lbs/ft.)
Steel 7.78 lbs/ft 14.63 lbs/ft 20.80 lbs/ft
Stainless
Aluminum 2.660 lbs/ft 5.050 lbs/ft 7.190 lbs/ft
6" 6.625 od 0.134 in 6.357 id 0.280 in 6.065 id 0.432 in 5.761 id
Weight
(lbs/ft.)
Steel 9.30 lbs/ft 18.99 lbs/ft 28.60 lbs/ft
Stainless
Aluminum 3.181 lbs/ft 6.560 lbs/ft 9.880 lbs/ft
8" 8.625 od 0.148 in 8.329 id 0.322 in 7.981 id 0.500 in 7.625 id
Weight
(lbs/ft.)
Steel 13.41 lbs/ft 28.58 lbs/ft 43.43 lbs/ft
Stainless
Aluminum   9.88 lbs/ft 15.010 lbs/ft

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