Sizes:1/4″ (8mm)-80″ (2000mm);Thickness: 2.11mm-60mm
SCH: SCH10,SCH20,STD,SCH40,SCH60,XS,SCH80,SCH100,SCH120,SCH160,XXS
Coating:3PE Coating,3PP Coating,FBE Coating,Epoxy Coating,Special Painting
Length:3m-12m
Standards:API 5L, API 5CT, ASTM A53, ASTM A106, ASTM A179, ASTM A192, ASTM A252, ASTM A333, ASTM A335, ASTM A672
Seamless steel pipes are derived from solid steel that is in sheet or bar form and is formed into a solid round shape known as “billets” which are then heated and cast over a form such as a piercing rod to create a hollow tube or shell.The abbreviation of seamless steel pipe is smls pipe
| Seamless sizes | Welded sizes | Application |
| Out diameter: 1/4″-36″ | Out diameter: 21.3mm-3620mm | API 5L, API 5CT, ASTM A53, ASTM A106, ASTM A179, ASTM A192, ASTM A252, ASTM A333, ASTM A335, ASTM A672 Water underground Sewage treatment Steel scaffolding Transporting oil & gas Boiler and condenser tubes High-pressure applications Chemical processing |
| Wall thickness:1.25mm-50mm | Wall thickness:1.65-mm-65mm | |
| Length:3m-12m | Length:3m-12m |
NPS | O.D | ANSI B36.10 B36.19 Wall Thickness | ||||||||||||||
mm | in | mm | Sch5S | Sch10S | Sch10 | Sch20 | Sch30 | Sch40S | STD | Sch40 | Sch60 | Sch80 | XS | Sch80S | Sch100 | XXS |
8 | 1/4 | 13.72 | – | 1.65 | – | – | – | 1.73 | 1.73 | 1.73 | – | 3.02 | 3.02 | 3.02 | – | – |
10 | 3/8 | 17.14 | – | 1.65 | – | – | – | 2.31 | 2.31 | 2.31 | – | 3.2 | 3.2 | 3.2 | – | – |
15 | 1/2 | 21.34 | 1.65 | 2.11 | – | – | – | 2.77 | 2.77 | 2.77 | – | 3.73 | 3.73 | 3.73 | – | 7.47 |
20 | 3/4 | 26.67 | 1.65 | 2.11 | – | – | – | 2.87 | 2.87 | 2.87 | – | 3.91 | 3.91 | 3.91 | – | 7.82 |
25 | 1 | 33.4 | 1.65 | 2.77 | – | – | – | 3.38 | 3.38 | 3.38 | – | 4.55 | 4.55 | 4.55 | – | 9.09 |
32 | 1 1/4 | 42.16 | 1.65 | 2.77 | – | – | – | 3.56 | 3.56 | 3.56 | – | 4.85 | 4.85 | 4.85 | – | 9.7 |
40 | 1 1/2 | 48.26 | 1.65 | 2.77 | – | – | – | 3.68 | 3.68 | 3.68 | – | 5.08 | 5.08 | 5.08 | – | 10.16 |
50 | 2 | 60.32 | 1.65 | 2.77 | – | – | – | 3.91 | 3.91 | 3.91 | – | 5.54 | 5.54 | 5.54 | – | 11.07 |
65 | 2 1/2 | 73.02 | 2.11 | 3.05 | – | – | – | 5.16 | 5.16 | 5.16 | – | 7.01 | 7.01 | 7.01 | – | 14.02 |
80 | 3 | 88.9 | 2.11 | 3.05 | – | – | – | 5.49 | 5.49 | 5.49 | – | 7.62 | 7.62 | 7.62 | – | 15.24 |
90 | 31/2 | 101.6 | 2.11 | 3.05 | – | – | – | 5.74 | 5.74 | 5.74 | – | 8.08 | 8.08 | 8.08 | – | – |
100 | 4 | 114.3 | 2.11 | 3.05 | – | – | – | 6.02 | 6.02 | 6.02 | – | 8.56 | 8.56 | 8.56 | – | 17.12 |
125 | 5 | 141.3 | 2.77 | 3.4 | – | – | – | 6.55 | 6.55 | 6.55 | – | 9.53 | 9.53 | 9.53 | – | 19.05 |
150 | 6 | 168.28 | 2.77 | 3.4 | – | – | – | 7.11 | 7.11 | 7.11 | – | 10.97 | 10.97 | 10.97 | – | 21.94 |
200 | 8 | 219.08 | 2.77 | 3.4 | – | 6.35 | 7.04 | 8.18 | 8.18 | 8.18 | 10.31 | 12.7 | 12.7 | 12.7 | 15.09 | 22.22 |
250 | 10 | 273.05 | 3.4 | 3.76 | – | 6.35 | 7.8 | 9.27 | 9.27 | 9.27 | 12.7 | 12.7 | 12.7 | 15.09 | 18.26 | 25.4 |
300 | 12 | 323.85 | 3.96 | 4.57 | – | 6.35 | 8.38 | 9.52 | 9.52 | 10.3 | 14.27 | 12.7 | 12.7 | 17.48 | 21.44 | – |
350 | 14 | 355.6 | 3.96 | 4.78 | 6.35 | 7.92 | 9.52 | *9.52 | 9.52 | 11.13 | 15.09 | 12.7 | 12.7 | 19.05 | 23.83 | – |
400 | 16 | 406.4 | 4.19 | 4.78 | 6.35 | 7.92 | 9.52 | *9.52 | 9.52 | 12.7 | 16.66 | 12.7 | 12.7 | 21.44 | 26.19 | – |
450 | 18 | 457.2 | 4.19 | 4.78 | 6.35 | 7.92 | 11.12 | *9.52 | 9.52 | 14.27 | 19.05 | 12.7 | 12.7 | 23.82 | 29.36 | – |
500 | 20 | 508 | 4.78 | 5.54 | 6.35 | 7.92 | 12.7 | *9.52 | 9.52 | 15.09 | 20.62 | 12.7 | 12.7 | 26.19 | 32.54 | – |
550 | 22 | 558.8 | 4.78 | 5.54 | 6.35 | 7.92 | 12.7 | *9.52 | 9.52 | – | 22.22 | 12.7 | 12.7 | 28.58 | 34.92 | – |
600 | 24 | 609.6 | 5.54 | 6.35 | 6.35 | 7.92 | 14.27 | *9.52 | 9.52 | 17.48 | 24.61 | 12.7 | 12.7 | 30.96 | 38.89 | – |
650 | 26 | 660.4 | – | *7.92 | 7.92 | 12.7 | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
700 | 28 | 711.2 | – | *7.92 | 7.92 | 12.7 | 15.88 | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
750 | 30 | 762 | 6.35 | *7.92 | 7.92 | 12.7 | 15.88 | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
800 | 32 | 812 | – | *7.92 | 7.92 | 12.7 | 15.88 | *9.52 | 9.52 | 17.48 | – | 12.7 | 12.7 | – | – | – |
850 | 34 | 863.6 | – | *7.92 | 7.92 | 12.7 | 15.88 | *9.52 | 9.52 | 17.48 | – | 12.7 | 12.7 | – | – | – |
900 | 36 | 914.4 | – | *7.92 | 7.92 | 12.7 | 15.88 | *9.52 | 9.52 | 19.05 | – | 12.7 | 12.7 | – | – | – |
950 | 38 | 965.2 | – | *7.92 | – | – | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
1000 | 40 | 1016 | – | *7.92 | – | – | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
1050 | 42 | 1066.8 | – | *7.92 | – | – | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
1100 | 44 | 1117.6 | – | *7.92 | – | – | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
1150 | 46 | 1168.4 | – | *7.92 | – | – | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
1200 | 48 | 1219.2 | – | *7.92 | – | – | – | *9.52 | 9.52 | – | – | 12.7 | 12.7 | – | – | – |
1300 | 52 | 1320.8 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1350 | 54 | 1371.6 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1400 | 56 | 1422.4 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1500 | 60 | 1524 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1600 | 64 | 1625.6 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1700 | 68 | 1727.2 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1800 | 72 | 1828.8 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
1900 | 76 | 1930.4 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
2000 | 80 | 2032 | – | – | – | – | – | – | 9.52 | – | – | – | 12.7 | – | – | – |
| API 5L | for use in conveying gas, water, and oil in the natural gas and oil industries, and covers seamless and welded steel line pipe. |
| API 5CT | for casing and tubing |
| ASTM A53 | for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless |
| ASTM A106 | for Seamless Carbon Steel Pipe for High-Temperature Service |
| ASTM A179 | for Seamless Cold-Drawn Low-Carbon Steel Heat-Exchanger and Condenser Tubes |
| ASTM A192 | for Seamless Carbon Steel Boiler Tubes for High-Pressure Service |
| ASTM A213 | for Seamless Ferritic and Austenitic Alloy-Steel Boiler, Superheater, and Heat-Exchanger Tubes |
| ASTM A252 | for Welded and Seamless Steel Pipe Piles |
| ASTM A333 | for Seamless and Welded Steel Pipe for Low-Temperature Service and Other Applications with Required Notch Toughness |
| ASTM A672 | for Electric-Fusion-Welded Steel Pipe for High-Pressure Service at Moderate Temperatures |
| ASTM A335 | for Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service |
| DIN 17175 | seamless steel pipes are used in boiler installations, high-pressure pipelines and tank construction and special machinery for both high temperature and high-pressure devices. |
| DIN 1629 | specifies the Seamless Circular Tubes of Non Alloys Steels with Special Quality Requirements. |
| DIN 2391 | for Cold Drawn High Precision Seamless Tube |
| DIN 2458 | Welded Steel Pipes in Unalloyed and Low Alloy Steels for Supply Purposes |
| EN 10210 | Seamless steel tubes for pressure purposes |
| BS 3059 | Steel boiler and superheater tubes |
| JIS G3454 | Carbon steel pipes for pressure service |