Welded vs seamless steel pipe
Seamless Pipe Sizes
Nominal Pipe Size | Outside Diameter | Schedule 5 S | Schedule 10 S | Schedule 20 S | Schedule 40 S | Schedule 80 S | Schedule 160 S | XXS | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
mm | inch | mm | WT mm | WEIGHT (KGM) | WT mm | WEIGHT (KGM) | WT mm | WEIGHT (KGM) | WT mm | WEIGHT (KGM) | WT mm | WEIGHT (KGM) | WT mm | WEIGHT (KGM) | WT mm | WEIGHT (KGM) | ||||
3 | 1/8 | 10.3 | 1.2 | 0.20 | 1.24 | 0.28 | 1.5 | 0.33 | 1.73 | 0.37 | 2.41 | 0.47 | - | - | - | - | ||||
6 | 1/4 | 13.7 | 1.2 | 0.37 | 1.65 | 0.49 | 2.00 | 0.58 | 2.24 | 0.630 | 3.02 | 0.80 | - | - | - | - | ||||
10 | 3/8 | 17.1 | 1.2 | 0.47 | 1.65 | 0.63 | 2.00 | 0.74 | 2.31 | 0.840 | 3.20 | 1.10 | - | - | - | - | ||||
15 | 1/2 | 21.3 | 1.65 | 0.80 | 2.11 | 1.00 | 2.30 | 1.07 | 2.77 | 1.27 | 3.73 | 1.62 | 4.75 | 1.94 | 7.47 | 2.55 | ||||
20 | 3/4 | 26.7 | 1.65 | 1.03 | 2.11 | 1.28 | 2.55 | 1.52 | 2.87 | 1.69 | 3.91 | 2.20 | 5.56 | 2.90 | 7.82 | 3.64 | ||||
25 | 1 | 33.4 | 1.65 | 1.30 | 2.77 | 2.09 | 2.55 | 1.94 | 3.38 | 2.50 | 4.55 | 3.24 | 6.35 | 4.24 | 9.09 | 5.45 | ||||
32 | 1.1/4 | 42.2 | 1.65 | 1.65 | 2.77 | 2.70 | 3.00 | 2.90 | 3.56 | 3.39 | 4.85 | 4.47 | 6.35 | 5.61 | 9.70 | 7.77 | ||||
40 | 1.1/2 | 48.3 | 1.65 | 1.91 | 2.77 | 3.11 | 3.00 | 3.55 | 3.68 | 4.05 | 5.08 | 5.41 | 7.14 | 7.25 | 11.1 | 10.18 | ||||
50 | 2 | 60.3 | 1.65 | 2.40 | 2.77 | 3.93 | 3.00 | 4.24 | 3.91 | 5.44 | 5.54 | 7.48 | 8.74 | 11.11 | 11.07 | 13.44 | ||||
65 | 2.1/2 | 73.0 | 2.11 | 3.69 | 3.05 | 5.26 | 4.00 | 6.81 | 5.16 | 8.63 | 7.01 | 11.41 | 9.53 | 14.91 | 14.02 | 20.39 | ||||
80 | 3 | 88.9 | 2.11 | 4.51 | 3.05 | 6.45 | 4.00 | 8.37 | 5.49 | 11.29 | 7.62 | 15.27 | 11.1 | 21.30 | 15.24 | 27.68 | ||||
100 | 4 | 114.3 | 2.11 | 5.84 | 3.05 | 8.36 | 4.50 | 12.18 | 6.02 | 16.07 | 8.56 | 22.32 | 13.49 | 33.54 | 17.12 | 41.03 | ||||
125 | 5 | 141.3 | 2.77 | 9.47 | 3.40 | 11.57 | 5.00 | 16.80 | 6.55 | 21.8 | 9.53 | 30.97 | 15.88 | 49.11 | 19.05 | 57.43 | ||||
150 | 6 | 168.3 | 2.77 | 11.32 | 3.40 | 13.84 | 6.35 | 25.36 | 7.11 | 28.26 | 10.97 | 42.56 | 18.25 | 67.53 | 21.95 | 79.22 | ||||
200 | 8 | 219.1 | 2.77 | 14.79 | 3.76 | 19.96 | 6.35 | 33.31 | 8.18 | 42.55 | 12.7 | 64.64 | 23.01 | 111.27 | 22.23 | 107.92 | ||||
250 | 10 | 273.1 | 3.40 | 22.63 | 4.19 | 27.78 | 6.35 | 41.77 | 9.27 | 60.31 | 12.7 | 96.01 | 28.58 | 172.33 | 25.40 | 155.15 | ||||
300 | 12 | 323.8 | 3.96 | 31.25 | 4.57 | 36.00 | 6.35 | 49.7 | 9.53 | 73.88 | 12.7 | 132.05 | 33.32 | 238.76 | 25.40 | 186.97 | ||||
350 | 14 | 355.6 | 3.96 | 34.36 | 4.78 | 41.3 | 7.92 | 67.80 | 11.13 | 94.59 |
|
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400 | 16 | 406.4 | 4.19 | 41.56 | 4.78 | 47.29 | 7.92 | 77.83 | 12.7 | 123.30 | ||||||||||
450 | 18 | 457.2 | 4.19 | 46.81 | 4.78 | 53.26 | 7.92 | 87.71 | 14.27 | 155.80 | ||||||||||
500 | 20 | 508.0 | 4.78 | 59.25 | 5.54 | 68.61 | 9.53 | 117.14 | 15.09 | 183.42 | ||||||||||
600 | 24 | 610.0s | 5.54s | 82.47 | 6.35 | 94.45 | 9.53 | 141.12 | 17.48 | 255.41 |
Seamless Pipe Material Grades
Material | Pipes | Fttg | Flg | Valves | Bolts and Nuts |
Carbon Steel | A106 Gr A | A234 Gr WPA | A105 | A216 Gr WCB | A193 Gr B7 A194 Gr 2H |
A106 Gr B | A234 Gr WPB | A105 | A216 Gr WCB | ||
A106 Gr C | A234 Gr WPC | A105 | A216 Gr WCB | ||
Carbon Steel Alloy High-Temp |
A335 Gr P1 | A234 Gr WP1 | A182 Gr F1 | A217 Gr WC1 | A193 Gr B7 A194 Gr 2H |
A335 Gr P11 | A234 Gr WP11 | A182 Gr F11 | A217 Gr WC6 | ||
A335 Gr P12 | A234 Gr WP12 | A182 Gr F12 | A217 Gr WC6 | ||
A335 Gr P22 | A234 Gr WP22 | A182 Gr F22 | A217 Gr WC9 | ||
A335 Gr P5 | A234 Gr WP5 | A182 Gr F5 | A217 Gr C5 | ||
A335 Gr P9 | A234 Gr WP9 | A182 Gr F9 | A217 Gr C12 | ||
Carbon Steel Alloy Low-Temp |
A333 Gr 6 | A420 Gr WPL6 | A350 Gr LF2 | A352 Gr LCB | A320 Gr L7 A194 Gr 7 |
A333 Gr 3 | A420 Gr WPL3 | A350 Gr LF3 | A352 Gr LC3 | ||
Austenitic Stainless Steel |
A312 Gr TP304 | A403 Gr WP304 | A182 Gr F304 | A182 Gr F304 | A193 Gr B8 A194 Gr 8 |
A312 Gr TP316 | A403 Gr WP316 | A182 Gr F316 | A182 Gr F316 | ||
A312 Gr TP321 | A403 Gr WP321 | A182 Gr F321 | A182 Gr F321 | ||
A312 Gr TP347 | A403 Gr WP347 | A182 Gr F347 | A182 Gr F347 | ||
Material | Pipes | Fttg | Flg | Valves | Bolts and Nuts |
Welded Pipe Size Chart
NPS (DN) |
ID | OD IN (MM) |
WT IN (MM) |
WEIGHT LB/FT (KG/M) |
1/8 (6) |
5S | 0.405 (10.3) |
Note 1 | ... |
1/8 (6) |
10S | 0.405 (10.3) |
0.049 (1.24) Note 1 |
0.19 (0.28) |
1/8 (6) |
40S | 0.405 (10.3) |
0.068 (1.73) |
0.24 (0.37) |
1/8 (6) |
80S | 0.405 (10.3) |
0.095 (2.41) |
0.31 (0.47) |
1/4 (8) |
5S | 0.54 (13.7) |
Note 1 | ... |
1/4 (8) |
10S | 0.54 (13.7) |
0.065 (1.65) Note 1 |
0.33 (0.49) |
1/4 (8) |
40S | 0.54 (13.7) |
0.088 (2.24) |
0.43 (0.63) |
1/4 (8) |
80S | 0.54 (13.7) |
0.119 (3.02) |
0.54 (0.8) |
3/8 (10) |
5S | 0.675 (17.1) |
Note 1 | ... |
3/8 (10) |
10S | 0.675 (17.1) |
0.065 (1.65) Note 1 |
0.42 (0.63) |
3/8 (10) |
40S | 0.675 (17.1) |
0.091 (2.31) |
0.57 (0.84) |
3/8 (10) |
80S | 0.675 (17.1) |
0.126 (3.2) |
0.74 (1.1) |
1/2 (15) |
5S | 0.84 (21.3) |
0.065 (1.65) Note 1 |
0.54 (0.8) |
1/2 (15) |
10S | 0.84 (21.3) |
0.083 (2.11) Note 1 |
0.67 (1.0) |
1/2 (15) |
40S | 0.84 (21.3) |
0.109 (2.77) |
0.85 (1.27) |
1/2 (15) |
80S | 0.84 (21.3) |
0.147 (3.73) |
1.09 (1.62) |
3/4 (20) |
5S | 1.05 (26.7) |
0.065 (1.65) Note 1 |
0.68 (1.02) |
3/4 (20) |
10S | 1.05 (26.7) |
0.083 (2.11) Note 1 |
0.86 (1.28) |
3/4 (20) |
40S | 1.05 (26.7) |
0.113 (2.87) |
1.13 (1.69) |
3/4 (20) |
80S | 1.05 (26.7) |
0.154 (3.91) |
1.48 (2.2) |
1 (25) |
5S | 1.315 (33.4) |
0.065 (1.65) Note 1 |
0.87 (1.29) |
1 (25) |
10S | 1.315 (33.4) |
0.109 (2.77) Note 1 |
1.41 (2.09) |
1 (25) |
40S | 1.315 (33.4) |
0.133 (3.38) |
1.68 (2.5) |
1 (25) |
80S | 1.315 (33.4) |
0.179 (4.55) |
2.17 (3.24) |
1¼ (32) |
5S | 1.66 (42.2) |
0.065 (1.65) Note 1 |
1.11 (1.65) |
1¼ (32) |
10S | 1.66 (42.2) |
0.109 (2.77) Note 1 |
1.81 (2.69) |
1¼ (32) |
40S | 1.66 (42.2) |
0.14 (3.56) |
2.27 (3.39) |
1¼ (32) |
80S | 1.66 (42.2) |
0.191 (4.85) |
3.0 (4.47) |
1½ (40) |
5S | 1.9 (48.3) |
0.065 (1.65) Note 1 |
1.28 (1.9) |
1½ (40) |
10S | 1.9 (48.3) |
0.109 (2.77) Note 1 |
2.09 (3.11) |
1½ (40) |
40S | 1.9 (48.3) |
0.145 (3.68) |
2.72 (4.05) |
1½ (40) |
80S | 1.9 (48.3) |
0.2 (5.08) |
3.63 (5.41) |
2 (50) |
5S | 2.375 (60.3) |
0.065 (1.65) Note 1 |
1.61 (2.39) |
2 (50) |
10S | 2.375 (60.3) |
0.109 (2.77) Note 1 |
2.64 (3.93) |
2 (50) |
40S | 2.375 (60.3) |
0.154 (3.91) |
3.66 (5.44) |
2 (50) |
80S | 2.375 (60.3) |
0.218 (5.54) |
5.03 (7.48) |
2½ (65) |
5S | 2.875 (73) |
0.083 (2.11) Note 1 |
2.48 (3.69) |
2½ (65) |
10S | 2.875 (73) |
0.12 (3.05) Note 1 |
3.53 (5.26) |
2½ (65) |
40S | 2.875 (73) |
0.203 (5.16) |
5.8 (8.63) |
2½ (65) |
80S | 2.875 (73) |
0.276 (7.01) |
7.67 (11.41) |
3 (80) |
5S | 3.5 (88.9) |
0.083 (2.11) Note 1 |
3.03 (4.52) |
3 (80) |
10S | 3.5 (88.9) |
0.12 (3.05) Note 1 |
4.34 (6.46) |
3 (80) |
40S | 3.5 (88.9) |
0.216 (5.49) |
7.58 (11.29) |
3 (80) |
80S | 3.5 (88.9) |
0.3 (7.62) |
10.26 (15.27) |
3½ (90) |
5S | 4.0 (101.6) |
0.083 (2.11) Note 1 |
3.48 (5.18) |
3½ (90) |
10S | 4.0 (101.6) |
0.12 (3.05) Note 1 |
4.98 (7.41) |
3½ (90) |
40S | 4.0 (101.6) |
0.226 (5.74) |
9.12 (13.57) |
3½ (90) |
80S | 4.0 (101.6) |
0.318 (8.08) |
12.52 (18.64) |
4 (100) |
5S | 4.5 (114.3) |
0.083 (2.11) Note 1 |
3.92 (5.84) |
4 (100) |
10S | 4.5 (114.3) |
0.12 (3.05) Note 1 |
5.62 (8.37) |
4 (100) |
40S | 4.5 (114.3) |
0.237 (6.02) |
10.8 (16.08) |
4 (100) |
80S | 4.5 (114.3) |
0.337 (8.56) |
15.0 (22.32) |
5 (125) |
5S | 5.563 (141.3) |
0.109 (2.77) Note 1 |
6.36 (9.46) |
5 (125) |
10S | 5.563 (141.3) |
0.134 (3.4) Note 1 |
7.78 (11.56) |
5 (125) |
40S | 5.563 (141.3) |
0.258 (6.55) |
14.63 (21.77) |
5 (125) |
80S | 5.563 (141.3) |
0.375 (9.53) |
20.8 (30.97) |
6 (150) |
5S | 6.625 (168.3) |
0.109 (2.77) Note 1 |
7.59 (11.31) |
6 (150) |
10S | 6.625 (168.3) |
0.134 (3.4) Note 1 |
9.3 (13.83) |
6 (150) |
40S | 6.625 (168.3) |
0.28 (7.11) |
18.99 (28.26) |
6 (150) |
80S | 6.625 (168.3) |
0.432 (10.97) |
28.6 (42.56) |
8 (200) |
5S | 8.625 (219.1) |
0.109 (2.77) Note 1 |
9.92 (14.78) |
8 (200) |
10S | 8.625 (219.1) |
0.148 (3.76) Note 1 |
13.41 (19.97) |
8 (200) |
40S | 8.625 (219.1) |
0.322 (8.18) |
28.58 (42.55) |
8 (200) |
80S | 8.625 (219.1) |
0.5 (12.7) |
43.43 (64.64) |
10 (250) |
5S | 10.75 (273) |
0.134 (3.4) Note 1 |
15.21 (22.61) |
10 (250) |
10S | 10.75 (273) |
0.165 (4.19) Note 1 |
18.67 (27.78) |
10 (250) |
40S | 10.75 (273) |
0.365 (9.27) |
40.52 (60.29) |
10 (250) |
80S | 10.75 (273) |
0.5 (12.7) Note 2 |
54.79 (81.53) |
12 (300) |
5S | 12.75 (323.8) |
0.156 (3.96) Note 1 |
21.0 (31.24) |
12 (300) |
10S | 12.75 (323.8) |
0.18 (4.57) Note 1 |
24.19 (35.98) |
12 (300) |
40S | 12.75 (323.8) |
0.375 (9.53) Note 2 |
49.61 (73.86) |
12 (300) |
80S | 12.75 (323.8) |
0.5 (12.7) Note 2 |
65.48 (97.44) |
14 (350) |
5S | 14.0 (355.6) |
0.156 (3.96) Note 1 |
23.09 (34.34) |
14 (350) |
10S | 14.0 (355.6) |
0.188 (4.78) Notes (1),(2) |
27.76 (41.36) |
14 (350) |
40S | 14.0 (355.6) |
0.375 (9.53) Note 2 |
54.62 (81.33) |
14 (350) |
80S | 14.0 (355.6) |
0.5 (12.7) Note 2 |
72.16 (107.4) |
16 (400) |
5S | 16.0 (406.4) |
0.165 (4.19) Note 1 |
27.93 (41.56) |
16 (400) |
10S | 16.0 (406.4) |
0.188 (4.78) Notes (1),(2) |
31.78 (47.34) |
16 (400) |
40S | 16.0 (406.4) |
0.375 (9.53) Note 2 |
62.64 (93.27) |
16 (400) |
80S | 16.0 (406.4) |
0.5 (12.7) Note 2 |
82.85 (123.31) |
18 (450) |
5S | 18.0 (457) |
0.165 (4.19) Note 1 |
31.46 (46.79) |
18 (450) |
10S | 18.0 (457) |
0.188 (4.78) Notes (1),(2) |
35.8 (53.31) |
18 (450) |
40S | 18.0 (457) |
0.375 (9.53) Note 2 |
70.65 (...) |
18 (450) |
80S | 18.0 (457) |
0.5 (12.7) Note 2 |
93.54 (...) |
20 (500) |
5S | 20.0 (508) |
0.188 (4.78) Note 1 |
39.82 (59.32) |
20 (500) |
10S | 20.0 (508) |
0.218 (5.54) Notes (1),(2) |
46.1 (68.65) |
20 (500) |
40S | 20.0 (508) |
0.375 (9.53) Note 2 |
78.67 (117.15) |
20 (500) |
80S | 20.0 (508) |
0.5 (12.7) Note 2 |
104.23 (155.13) |
22 (550) |
5S | 22.0 (559) |
0.188 (4.78) Note 1 |
43.84 (65.33) |
22 (550) |
10S | 22.0 (559) |
0.218 (5.54) Notes (1),(2) |
50.76 (75.62) |
22 (550) |
40S | 22.0 (559) |
... | ... |
22 (550) |
80S | 22.0 (559) |
... | ... |
24 (600) |
5S | 24.0 (610) |
0.218 (5.54) Note 1 |
55.42 (82.58) |
24 (600) |
10S | 24.0 (610) |
0.25 (6.35) Note 1 |
63.47 (94.53) |
24 (600) |
40S | 24.0 (610) |
0.375 (9.53) Note 2 |
94.71 (141.12) |
24 (600) |
80S | 24.0 (610) |
0.5 (12.7) Note 2 |
125.61 (187.07) |
30 (750) |
5S | 30.0 (762) |
0.25 (6.35) Note 1 |
79.51 (118.34) |
30 (750) |
10S | 30.0 (762) |
0.312 (7.92) Note 1 |
99.02 (147.29) |
30 (750) |
40S | 30.0 (762) |
... | ... |
30 (750) |
80S | 30.0 (762) |
... | ... |