ANSI Schedule 80 steel pipes are widely used in various industries due to their durability and ability to withstand high pressure applications. These pipes are designed with a thicker wall thickness compared to ANSI Schedule 40 steel pipes, providing extra strength and resistance.
The term "Schedule" refers to the pipe's wall thickness, with Schedule 80 having a thicker wall compared to Schedule 40. The wall thickness of Schedule 80 steel pipes allows them to handle higher pressures and offer better performance in applications where high pressure is involved.
When it comes to dimensions, ANSI Schedule 80 steel pipes follow the standards set by ASME B36.10. They come in different sizes or nominal sizes, ranging from small diameters up to larger ones, depending on the specific requirements of the application.
The pressure rating for these pipes is determined by factors such as material composition, temperature, and design specifications. It is important for engineers and designers to consider these factors when selecting the appropriate schedule and size for their projects.
ANSI Schedule 80 steel pipes are known for their extra strength and suitability for high-pressure applications. Their dimensions adhere to industry standards, making them a reliable choice for various industrial sectors requiring durable and robust piping systems.
Reference ANSI/ASME B36.10M-1995 Wrought Steel Pipe seamless and welded
|
Diameter, Inches
|
Wall
|
Weight per Foot, (Lbs)
|
Properties of Sections
|
||||
|
Nominal
|
Inside
|
Outside
|
Thickness (in.)
|
Pipe
|
Moment of Inertia
(in4) |
Radius of Gyration
|
Section Modulus
(in3) |
|
1/8
|
.215
|
.405
|
.095
|
.315
|
.00122
|
.115
|
.00600
|
|---|---|---|---|---|---|---|---|
|
1/4
|
.302
|
.540
|
.119
|
.537
|
.00377
|
.155
|
.01395
|
|
3/8
|
.423
|
.675
|
.126
|
.739
|
.00862
|
.199
|
.02554
|
|
1/2
|
.546
|
.840
|
.147
|
1.088
|
.02008
|
.250
|
.04780
|
|
3/4
|
.742
|
1.050
|
.154
|
1.474
|
.04479
|
.321
|
.08531
|
|
1
|
.957
|
1.315
|
.179
|
2.172
|
.1056
|
.407
|
.1606
|
|
1 1/4
|
1.278
|
1.660
|
.191
|
2.997
|
.2418
|
.524
|
.2913
|
|
1 1/2
|
1.500
|
1.900
|
.200
|
3.631
|
.3912
|
.605
|
.4118
|
|
2
|
1.939
|
2.375
|
.218
|
5.022
|
.8680
|
.766
|
.7309
|
|
2 1/2
|
2.323
|
2.875
|
.276
|
7.661
|
1.924
|
.924
|
1.339
|
|
3
|
2.900
|
3.500
|
.300
|
10.25
|
3.895
|
1.136
|
2.225
|
|
3 1/2
|
3.364
|
4.000
|
.318
|
12.50
|
6.280
|
1.307
|
3.140
|
|
4
|
3.826
|
4.500
|
.337
|
14.98
|
9.611
|
1.477
|
4.272
|
|
5
|
4.813
|
5.563
|
.375
|
20.78
|
20.67
|
1.839
|
7.432
|
|
6
|
5.761
|
6.625
|
.432
|
28.57
|
40.49
|
2.195
|
12.22
|
|
8
|
7.625
|
8.625
|
.500
|
43.39
|
105.7
|
2.878
|
24.52
|
|
10
|
9.562
|
10.750
|
.594
|
64.42
|
245.2
|
3.597
|
45.62
|
|
12
|
11.374
|
12.750
|
.688
|
88.63
|
475.7
|
4.271
|
74.62
|
|
14
|
12.500
|
14.000
|
.750
|
106.1
|
687.4
|
4.692
|
98.19
|
|
16
|
14.312
|
16.000
|
.844
|
136.6
|
1158.0
|
5.366
|
144.7
|
|
18
|
16.124
|
18.000
|
.938
|
170.9
|
1835.0
|
6.041
|
203.9
|
|
20
|
17.938
|
20.000
|
1.031
|
208.9
|
2772.0
|
6.716
|
277.2
|
|
22
|
19.750
|
22.000
|
1.125
|
250.8
|
4031.0
|
7.391
|
366.4
|
|
24
|
21.562
|
24.000
|
1.219
|
296.58
|
5672.0
|
8.066
|
472.8
|
Schedule 80 Pipes Sizes
| NPS | 1/2 | 3/4 | 1 | 1¼ | 1½ | 2 | 2½ | 3 | 3½ | 4 |
| DN | 15 | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 90 | 100 |
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