Get Electric Resistance Welding Pipe Standard Size Chart
Electric Resistance Welding Pipe Standard Size Chart
| NB |
Size |
OD |
5S |
10S |
S10 |
S20 |
40S |
S40 |
S60 |
XS/80S |
S80 |
S100 |
S120 |
S140 |
S160 |
XXS |
| mm |
| - |
1/8” |
10.29 |
- |
1.2 |
- |
- |
- |
1.73 |
- |
- |
2.41 |
- |
- |
- |
- |
- |
| - |
1/4” |
13.72 |
- |
1.7 |
- |
- |
- |
2.24 |
- |
- |
3.02 |
- |
- |
- |
- |
- |
| - |
3/8” |
17.15 |
- |
1.7 |
- |
- |
- |
2.31 |
- |
- |
3.2 |
- |
- |
- |
- |
- |
| 15 |
1/2” |
21.34 |
1.7 |
2.1 |
- |
- |
2.8 |
2.77 |
- |
3.73 |
3.73 |
- |
- |
- |
4.78 |
7.47 |
| 40 |
1 1/2” |
48.26 |
1.7 |
2.8 |
- |
- |
3.7 |
3.68 |
- |
5.08 |
5.08 |
- |
- |
- |
7.14 |
10.2 |
| 50 |
2” |
60.33 |
1.7 |
2.8 |
- |
- |
3.9 |
3.91 |
- |
5.54 |
5.54 |
- |
- |
- |
9.74 |
11.1 |
| 65 |
2 1/2” |
73.03 |
2.1 |
3.1 |
- |
- |
5.2 |
5.16 |
- |
7.01 |
7.01 |
- |
- |
- |
9.53 |
14 |
| 80 |
3” |
88.9 |
2.1 |
3.1 |
- |
- |
5.5 |
5.49 |
- |
7.62 |
7.62 |
- |
- |
- |
11.1 |
15.2 |
| 90 |
3 1/2” |
101.6 |
2.1 |
3.1 |
- |
- |
5.7 |
5.74 |
- |
8.08 |
8.08 |
- |
- |
- |
- |
- |
| 100 |
4” |
114.3 |
2.1 |
3.1 |
- |
- |
6 |
6.02 |
- |
8.56 |
8.56 |
- |
11.1 |
- |
13.5 |
17.1 |
| 125 |
5” |
141.3 |
2.8 |
3.4 |
- |
- |
6.6 |
6.55 |
- |
9.53 |
9.53 |
- |
12.7 |
- |
15.9 |
19.1 |
| 20 |
3/4” |
26.67 |
1.7 |
2.1 |
- |
- |
2.9 |
2.87 |
- |
3.91 |
3.91 |
- |
- |
- |
5.56 |
7.82 |
| 25 |
1” |
33.4 |
1.7 |
2.8 |
- |
- |
3.4 |
3.38 |
- |
4.55 |
4.55 |
- |
- |
- |
6.35 |
9.09 |
| 32 |
1 1/4” |
42.16 |
1.7 |
2.8 |
- |
- |
3.6 |
3.56 |
- |
4.85 |
4.85 |
- |
- |
- |
6.35 |
9.7 |
| 150 |
6” |
168.3 |
2.8 |
3.4 |
- |
- |
7.1 |
7.11 |
- |
10.97 |
11 |
- |
14.3 |
- |
18.3 |
22 |
| 300 |
12” |
323.9 |
4 |
4.6 |
- |
6.4 |
9.5 |
10.3 |
14.3 |
12.7 |
17.5 |
21.4 |
25.4 |
28.6 |
33.3 |
25.4 |
| 250 |
10” |
273.1 |
3.4 |
4.2 |
- |
6.4 |
9.3 |
9.27 |
12.7 |
12.7 |
15.1 |
19.3 |
21.4 |
25.4 |
28.6 |
25.4 |
| 650 |
26” |
660.4 |
- |
- |
7.9 |
13 |
9.5 |
- |
- |
12.7 |
- |
- |
- |
- |
- |
- |
| 700 |
28” |
711.2 |
- |
- |
7.9 |
13 |
9.5 |
- |
- |
12.7 |
- |
- |
- |
- |
- |
- |
| 850 |
34” |
863.6 |
- |
- |
7.9 |
13 |
9.5 |
17.5 |
- |
12.7 |
- |
- |
- |
- |
- |
- |
| 350 |
14” |
355.6 |
4 |
4.8 |
6.4 |
7.9 |
9.5 |
11.1 |
15.1 |
12.7 |
19.1 |
23.8 |
27.8 |
31.8 |
35.7 |
- |
| 750 |
30” |
762 |
6.4 |
7.9 |
7.9 |
13 |
9.5 |
- |
- |
12.7 |
- |
- |
- |
- |
- |
- |
| 800 |
32” |
812.8 |
- |
- |
7.9 |
13 |
9.5 |
17.5 |
- |
12.7 |
- |
- |
- |
- |
- |
- |
| 500 |
20” |
508 |
4.8 |
5.5 |
6.4 |
9.5 |
9.5 |
15.1 |
20.6 |
12.7 |
26.2 |
32.5 |
38.1 |
44.5 |
50 |
- |
| 550 |
22” |
558.8 |
4.8 |
5.5 |
6.4 |
9.5 |
9.5 |
- |
22.2 |
12.7 |
28.6 |
34.9 |
41.3 |
47.6 |
54 |
- |
| 600 |
24” |
609.6 |
5.5 |
6.4 |
6.4 |
9.5 |
9.5 |
17.5 |
24.6 |
12.7 |
31 |
38.9 |
46 |
52.4 |
59.5 |
- |
| 200 |
8” |
219.1 |
2.8 |
3.8 |
- |
6.4 |
8.2 |
8.18 |
10.3 |
12.7 |
12.7 |
15.1 |
19.3 |
20.6 |
23 |
22.2 |
| 400 |
16” |
406.4 |
4.2 |
4.8 |
6.4 |
7.9 |
9.5 |
12.7 |
16.7 |
12.7 |
21.4 |
26.2 |
31 |
36.5 |
40.5 |
- |
| 450 |
18” |
457.2 |
4.2 |
4.8 |
6.4 |
7.9 |
9.5 |
14.3 |
19.1 |
12.7 |
23.8 |
29.4 |
34.9 |
39.7 |
45.2 |
- |
| 900 |
36” |
914.4 |
- |
- |
7.9 |
13 |
9.5 |
19.1 |
- |
12.7 |
- |
- |
- |
- |
- |
- |
| Nominal Pipe Size (NPS) |
Outer Diameter (OD) (inches) |
| 1/2 |
0.840 |
| 1 |
1.315 |
| 1 1/2 |
1.900 |
| 1 1/4 |
1.660 |
| 2 |
2.375 |
| 2 1/2 |
2.875 |
| 3 |
3.500 |
| 3/4 |
1.050 |
| 4 |
4.500 |
| 6 |
6.625 |
| 8 |
8.625 |
| 10 |
10.750 |
| 12 |
12.750 |
Must Check ERW Pipe Dimensions Chart
ERW Pipe Dimensions Chart

| Nominal Size- NPS
(inches) |
ID
(inches) |
OD
(inches)
|
SCH |
Wall Thickness
(inches)
|
| 1 |
1.185 |
1.315 |
5 |
0.065 |
| 1.097 |
1.315 |
10 |
0.109 |
| 1.049 |
1.315 |
40 |
0.133 |
| 0.957 |
1.315 |
80 |
0.179 |
| 1/2 |
0.710 |
0.840 |
5 |
0.065 |
| 0.674 |
0.840 |
10 |
0.083 |
| 0.622 |
0.840 |
40 |
0.109 |
| 0.546 |
0.840 |
80 |
0.147 |
| 1/4 |
0.410 |
0.540 |
10 |
0.065 |
| 0.364 |
0.540 |
40 |
0.088 |
| 0.302 |
0.540 |
80 |
0.119 |
| 1/8 |
0.307 |
0.405 |
10 |
0.049 |
| 0.269 |
0.405 |
40 |
0.068 |
| 0.215 |
0.405 |
80 |
0.095 |
| 3/4 |
0.920 |
1.050 |
5 |
0.065 |
| 0.884 |
1.050 |
10 |
0.083 |
| 0.824 |
1.050 |
40 |
0.113 |
| 0.742 |
1.050 |
80 |
0.154 |
| 3/8 |
0.545 |
0.678 |
10 |
0.065 |
| 0.493 |
0.678 |
40 |
0.091 |
| 0.423 |
0.678 |
80 |
0.126 |
| 1 1/2 |
1.770 |
1.900 |
5 |
0.065 |
| 1.682 |
1.900 |
10 |
0.109 |
| 1.610 |
1.900 |
40 |
0.145 |
| 1.500 |
1.900 |
80 |
0.200 |
| 1 1/4 |
1.530 |
1.660 |
5 |
0.065 |
| 1.442 |
1.660 |
10 |
0.109 |
| 1.380 |
1.660 |
40 |
0.140 |
| 1.278 |
1.660 |
80 |
0.191 |
| 2 |
2.245 |
2.375 |
5 |
0.065 |
| 2.157 |
2.375 |
10 |
0.109 |
| 2.067 |
2.375 |
40 |
0.154 |
| 1.939 |
2.375 |
80 |
0.218 |
| 2 1/2 |
2.709 |
2.875 |
5 |
0.083 |
| 2.635 |
2.875 |
10 |
0.120 |
| 2.469 |
2.875 |
40 |
0.203 |
| 3 |
3.334 |
3.500 |
5 |
0.083 |
| 3.260 |
3.500 |
10 |
0.120 |
| 3.068 |
3.500 |
40 |
0.216 |
| 3 1/2 |
3.834 |
4.000 |
5 |
0.083 |
| 3.760 |
4.000 |
10 |
0.120 |
| 4 |
4.334 |
4.500 |
5 |
0.083 |
| 4.260 |
4.500 |
10 |
0.120 |
| 4.026 |
4.500 |
40 |
0.237 |
| 5 |
5.345 |
5.563 |
5 |
0.109 |
| 5.295 |
5.563 |
10 |
0.134 |
| 6 |
6.407 |
6.625 |
5 |
0.109 |
| 6.357 |
6.625 |
10 |
0.134 |
Find ERW Pipe Schedule Chart Here
| Nominal Pipe Size (NPS) |
Schedule 10 |
Schedule 20 |
Schedule 40 |
Schedule 80 |
| 2″ |
0.154″ |
0.218″ |
0.370″ |
0.450″ |
| 12″ |
0.406″ |
0.687″ |
1.200″ |
1.320″ |
| 2-1/2″ |
0.203″ |
0.276″ |
0.432″ |
0.552″ |
| 10″ |
0.365″ |
0.593″ |
1.050″ |
1.200″ |
| 24″ |
0.625″ |
1.125″ |
2.000″ |
2.250″ |
| 3/4″ |
0.113″ |
0.154″ |
0.216″ |
0.300″ |
| 1-1/4″ |
0.140″ |
0.191″ |
0.274″ |
0.375″ |
| 4″ |
0.237″ |
0.337″ |
0.600″ |
0.800″ |
| 18″ |
0.562″ |
0.875″ |
1.700″ |
1.900″ |
| 14″ |
0.437″ |
0.750″ |
1.400″ |
1.500″ |
| 1″ |
0.133″ |
0.179″ |
0.244″ |
0.322″ |
| 1-1/2″ |
0.145″ |
0.200″ |
0.300″ |
0.400″ |
| 1/2″ |
0.109″ |
0.147″ |
0.205″ |
0.254″ |
| 16″ |
0.500″ |
0.875″ |
1.500″ |
1.750″ |
| 6″ |
0.280″ |
0.432″ |
0.840″ |
1.050″ |
| 20″ |
0.593″ |
1.000″ |
1.800″ |
2.000″ |
| 3″ |
0.216″ |
0.300″ |
0.500″ |
0.600″ |
| 5″ |
0.258″ |
0.375″ |
0.700″ |
0.900″ |
| 8″ |
0.322″ |
0.500″ |
0.900″ |
1.100″ |
Check ERW Pipe Thickness Chart in mm
| Nominal size in Inch |
OD in mm |
OD in Inch |
Wall thickness in Inch |
Wall thickness in mm |
| 1 Inch |
33.4 mm |
1.315 |
0.065 |
1.65 |
| 10 Inch |
273.1 mm |
10.750 |
0.134 |
3.4 |
| 1/2 Inch |
21.3 mm |
0.840 |
0.065 |
1.65 |
| 3 1/2 Inch |
101.6 mm |
4.000 |
0.083 |
2.11 |
| 12 Inch |
323.9 mm |
12.750 |
0.156 |
3.96 |
| 3/4 Inch |
26.7 mm |
1.050 |
0.065 |
1.65 |
| 6 Inch |
168.3 mm |
6.625 |
0.109 |
2.77 |
| 22 Inch |
559.0 mm |
22.000 |
0.188 |
4.78 |
| 24 Inch |
610.0 mm |
24.000 |
0.218 |
5.54 |
| 3 Inch |
88.9 mm |
3.500 |
0.083 |
2.11 |
| 30 Inch |
762.0 mm |
30.000 |
0.250 |
6.35 |
| 2 Inch |
60.3 mm |
2.375 |
0.065 |
1.65 |
| 20 Inch |
508.0 mm |
20.000 |
0.188 |
4.78 |
| 4 Inch |
114.3 mm |
4.500 |
0.083 |
2.11 |
| 2 1/2 Inch |
73.0 mm |
2.875 |
0.083 |
2.11 |
| 1 1/4 Inch |
42.2 mm |
1.660 |
0.065 |
1.65 |
| 16 Inch |
406.4 mm |
16.000 |
0.165 |
4.19 |
| 8 Inch |
219.1 mm |
8.625 |
0.109 |
2.77 |
| 14 Inch |
355.6 mm |
14.000 |
0.156 |
3.96 |
| 1 1/2 Inch |
48.3 mm |
1.900 |
0.065 |
1.65 |
| 18 Inch |
457.0 mm |
18.000 |
0.165 |
4.19 |
| 5 Inch |
141.3 mm |
5.563 |
0.109 |
2.77 |
View Jindal ERW Pipe Weight Chart
Jindal ERW Pipe Weight Chart
| Size |
OD |
WT |
Weight |
Gallon |
Standard to XXHY |
Schedule Pipe # |
| 1/2 |
0.84 |
0.109 |
0.85 |
.0158 |
STD |
40 |
| 0.147 |
1.09 |
.0122 |
XHY |
80 |
| 0.188 |
1.31 |
.0088 |
- |
160 |
| 1 |
1.315 |
0.133 |
1.68 |
.0449 |
STD |
40 |
| 0.179 |
2.17 |
.0374 |
XHY |
80 |
| 0.250 |
2.85 |
.0271 |
- |
160 |
| 1 1/2 |
1.90 |
0.145 |
2.72 |
.1058 |
STD |
40 |
| 0.200 |
3.63 |
.0918 |
XHY |
80 |
| 3 1/2 |
4.0 |
0.120 |
4.98 |
.5768 |
- |
10 |
| 0.226 |
9.12 |
.5136 |
STD. |
140 |
| 0.250 |
10.02 |
.4998 |
- |
- |
| 0.281 |
11.17 |
.4821 |
- |
- |
| 1 1/4 |
1.66 |
0.140 |
2.27 |
.0777 |
STD |
40 |
| 0.191 |
3.00 |
.0666 |
XHY |
80 |
| 0.250 |
3.77 |
.0549 |
- |
160 |
| 0.281 |
4.86 |
.0730 |
- |
160 |
| 2 |
2.375 |
0.109 |
2.64 |
.1898 |
- |
10 |
| 0.154 |
3.66 |
.1743 |
STD |
40 |
| 0.218 |
5.03 |
.1534 |
XHY |
80 |
| 0.250 |
5.68 |
.1434 |
- |
- |
| 0.281 |
6.29 |
.1344 |
- |
- |
| 0.344 |
7.47 |
.1161 |
- |
160 |
| 2 1/2 |
2.875 |
0.120 |
3.53 |
.2833 |
- |
10 |
| 0.203 |
5.80 |
.2487 |
STD. |
40 |
| 0.216 |
6.14 |
.2435 |
- |
- |
| 0.250 |
7.02 |
.2301 |
- |
- |
| 0.276 |
7.67 |
.2202 |
XHY |
80 |
| 0.375 |
10.02 |
.1842 |
- |
160 |
| 3/4 |
1.05 |
0.113 |
1.13 |
.0277 |
STD |
40 |
| 0.154 |
1.48 |
.0225 |
XHY |
80 |
| 0.219 |
1.95 |
.0153 |
- |
160 |
| 3 |
3.50 |
0.120 |
4.34 |
.4336 |
- |
- |
| 0.156 |
5.58 |
.4147 |
- |
- |
| 0.172 |
6.12 |
.4064 |
- |
- |
| 0.188 |
6.66 |
.3984 |
- |
- |
| 0.216 |
7.58 |
.3840 |
STD. |
40 |
| 0.250 |
8.69 |
.3672 |
- |
- |
| 0.281 |
9.67 |
.3521 |
- |
- |
| 0.300 |
10.26 |
.3431 |
XHY |
80 |
| 0.438 |
14.34 |
.2811 |
- |
160 |
| 0.318 |
12.52 |
.4617 |
XHY |
80 |
| 4 |
4.5 |
0.120 |
5.62 |
.7404 |
- |
10 |
| 0.156 |
7.24 |
.7156 |
- |
- |
| 0.188 |
8.67 |
.6942 |
- |
- |
| 0.203 |
9.32 |
.6838 |
- |
- |
| 0.219 |
10.02 |
.6725 |
- |
- |
| 0.237 |
10.80 |
.6613 |
STD. |
40 |
| 0.250 |
11.36 |
.6528 |
- |
- |
| 0.281 |
12.67 |
.6326 |
- |
60 |
| 0.312 |
13.97 |
.6126 |
- |
- |
| 0.337 |
15.00 |
.5972 |
XHY |
80 |
| 0.438 |
19.02 |
.5361 |
- |
120 |
| 0.531 |
22.53 |
.4822 |
- |
160 |
| 5 |
5.563 |
0.188 |
10.80 |
1.0979 |
- |
- |
| 0.219 |
12.51 |
1.0716 |
- |
- |
| 0.258 |
14.63 |
1.0391 |
STD. |
40 |
| 0.281 |
15.87 |
1.0204 |
- |
- |
| 0.312 |
17.51 |
.99647 |
- |
- |
| 0.344 |
19.19 |
.9696 |
- |
- |
| 0.375 |
20.80 |
.9449 |
XHY |
80 |
| 0.500 |
27.06 |
.8495 |
- |
120 |
| 0.625 |
32.99 |
.7590 |
- |
160 |
| 6 |
6.625 |
0.109 |
7.59 |
1.6748 |
- |
5 |
| 0.134 |
9.30 |
1.6488 |
- |
10 |
| 0.156 |
10.79 |
1.6260 |
- |
- |
| 0.188 |
12.94 |
1.5937 |
- |
- |
| 0.203 |
13.94 |
1.5780 |
- |
- |