What are the sizes and weights of A106 seamless steel pipes?

Author : admin

Update time : 2025-02-11 08:55:43

　　Shengtian Group offers standard size ASTM A106 seamless steel pipes primarily used in the oil and gas industry, automotive and engineering industries. This is the most common and widely used product and comes in different sizes and thicknesses.

　　Seamless steel pipe sizes in mm:

　　Out diameter: 1/2 inch - 36 inch (21.3mm-914.4mm)

　　Thickness: 2.11mm-60mm ( SCH10, SCH20, SCH40, SCH80, STD, SCH120, SCH160, XXS)

　　General size table for Seamless steel pipes and Welded pipes in mm:
seamless steel pipe and welded pipe sizes

　　Carbon seamless Steel Pipe & Tube Sizes and Weights:

Seamless Steel Pipe Sizes	Seamless Steel Pipe Schedule (INCH)
INCH	5S	5	10S	10	20	30	40	STD	60	80	100	120	140	160
1/8		0.035	0.049	0.049			0.068	0.068		0.095
1/4		0.049	0.065	0.065			0.2447	0.2447		0.3145
3/8		0.048	0.065	0.065			0.091	0.091		0.126
1/2	0.065	0.065	0.083	0.083			0.109	0.109		0.147				0.187
3/4	0.065	0.065	0.083	0.083			0.113	0.113		0.154				0.218
1	0.065	0.065	0.109	0.109			0.133	0.133		0.179				0.250
1 1/4	0.065	0.065	0.109	0.109			0.140	0.140		0.191				0.250
1 1/2	0.065	0.065	0.109	0.109			0.145	0.145		0.200				0.281
2	0.065	0.065	0.109	0.109			0.154	0.154		0.218				0.344
2 1/2	0.083	0.083	0.120	0.120			0.203	0.203		0.276				0.375
3	0.083	0.083	0.120	0.120			0.216	0.216		0.300				14.32
3 1/2	0.083	0.083	0.120	0.120			0.226	0.226		0.318
4	0.083	0.083	0.120	0.120			0.237	0.237		0.337		0.438		0.531
4 1/2								0.247
5	0.109	0.109	0.134	0.134			0.258	0.258		0.375		0.500		0.625
6	0.109	0.109	0.134	0.134			0.280	0.280		0.432		0.562		0.719
7								0.301
8	0.109	0.109	0.148	0.148	0.250	0.277	0.322	0.322		0.500	0.594	0.719	0.812	0.916
9
10	0.134	0.134	0.165	0.165	0.250	0.307	0.365	0.365		0.594	0.719	0.844	1.000	1.125
11
12	0.156	0.156	0.180	0.180	0.250	0.330	0.406	0.375	0.562	0.688	0.844	1.000	1.125	1.312
14	0.156		0.188	0.250	0.312	0.375	0.437	0.375	0.594	0.750	0.938	1.094	1.250	1.406
16	0.165		0.188	0.250	0.312	0.375	0.500	0.375	0.656	0.844	0.1031	1.219	1.438	1.593
18	0.165		0.188	0.250	0.312	0.437	0.562	0.375	0.750	0.938	1.156	1.375	1.562	1.781
20	0.188		0.218	0.250	0.375	0.500	0.594	0.375	0.812	1.031	1.281	1.500	1.750	1.968
22				0.250	0.375	0.500		0.375	0.875	1.125	1.357	1.625	1.875	2.215
24	0.218		0.250	0.250	0.375	0.562	0.687	0.375	0.969	1.219	1.531	1.812	2.062	2.343
30				0.312

　　Common ASTM standards for seamless pipes include the following:

　　ASTM A53/A53M: This is a standard specification for pipe, steel, black and hot-dipped, zinc-coated, welded and seamless, used for general purposes, including galvanized and ungalvanized steel pipes.

　　ASTM A106/A106M: This is a standard specification for seamless carbon steel pipe for high-temperature or pressure service, typically used for applications above 350°C.

　　ASTM A312/A312M: This is a standard specification for seamless and welded austenitic stainless steel pipes, suitable for heavily cold-worked austenitic stainless steel tubes.

　　ASTM A269: This is a standard specification for seamless and welded austenitic stainless steel tubes for general corrosion-resistant and low- or high-temperature service applications.

　　ASTM A500/A500M: This is a standard specification for cold-formed welded and seamless carbon steel round, square, rectangular, or special shape structural tubes, used for welded, riveted, or bolted structures of bridges and buildings.

　　ASTM A209: This is a standard specification for seamless carbon steel and alloy steel tubes for use in boiler and superheater applications, suitable for high-temperature and pressure services.

　　ASTM A213/A213M: This is a standard specification for seamless ferritic and austenitic alloy steel tubes for boiler, superheater, and heat exchanger applications.

　　ASTM A335/A335M: This is a standard specification for seamless ferritic and austenitic alloy steel tubes for high-temperature service.

　　Shengtian Group provide any standards & grades steel pipe : API 5L GR.B or X45-80, API 5CT, ASTM A53 GR.B, ASTM A106 GR.B, ASTM A213, ASTM A312, ASTM A333, ASTM A335, ASTM A519, ASTM A179, ASTM A192,ASTM A672, DIN 1629, DIN 21391, EN 10210, EN 10219 etc.

Previous : Factors Affecting the Life of ASTM A192 Seamless Boiler Tubes

Next : What is difference between sch 40 and sch 40s SMLS pipe?

Working Pressure of Seamless Steel Pipe

Sep .17.2026

　　Seamless steel pipe actual bearing pressure may be affected by many factors such as the quality of the pipe, processing technology, and use environment Please feel free to contact us if you have any questions Email : pipe@stpipefitting.cn
(SMLS pipe) is a type of pipe produced without welds by deforming the metal as a whole using piercing and rolling techniques. Compared to welded steel pipe, its core advantage stems from the continuity of the material and the uniformity of its structure, providing superior reliability and safety under high pressure, high temperature, and complex stress environments. This makes seamless steel pipe a fundamental and reliable material in the petroleum, chemical, natural gas, and power industries for critical processes and the transportation of hazardous media.

Seamless carbon steel pipe Sch 40

Sep .15.2026

Seamless Carbon Steel Pipe Sch 40 (Schedule 40) is a seamless steel pipe specification that meets the American standard. Its pipe wall thickness is Sch40 (corresponding to the standard wall thickness series), which represents the standard wall thickness under a specific pressure level and is often used in occasions with higher pressure and temperature.

Schedule 80 Carbon Steel Pipe: Thickness, Dimensions & Weight in mm

Sep .10.2026

Schedule 80 Carbon Steel Pipe is made up of carbon steel materials. The carbon steels can vary in composition based on the grades. The strengths and the toughness vary. To have an international and equal identification of the pressure capacities of the pipes, the schedule scale is used. The wall thickness grades of the steel pipe range from Schedule (SCH) 5 to Schedule (SCH) 160. SCH 5 has the lowest pressure resistance, while SCH 160 has the highest.

Steel Pipe Sizes Explained: NPS, OD and Wall Thickness

Sep .08.2026

Steel pipe sizing can be confusing, especially for buyers who are new to piping specifications. A pipe's designated size often differs from its actual dimensions, which can lead to mistakes during purchasing or design.

Have Any Questions?

DON'T HESITATE TO CONTACT US ANY TIME.