Carbon steel pipe dimensions

Carbon steel pipes are made from carbon steel plates or billets through processes such as hot rolling, cold rolling, forming, welding (or seamless piercing), and straightening. Due to its outstanding strength, durability and cost-effectiveness, it is widely used in the construction and industrial fields.

Materials and standards:

Material grades: Carbon steel pipes are available in multiple grades, including ASTM A106 (for high-temperature services), ASTM A53 (for general applications), and API 5L (for pipeline pipes). These grades ensure compatibility with a wide range of industrial requirements, from low-voltage systems to high-pressure environments.

Standard compliance: Carbon steel pipes comply with international standards such as ASTM, ASME and API, ensuring consistent quality and reliability.

Surface treatment: Optional surface treatments include black (rolling), galvanizing or coating treatment to enhance corrosion resistance and service life.

The following table lists the outer diameter, wall thickness, weight and specifications of carbon steel pipes. The nominal pipe dimensions are measured in millimeters and inches. The wall thickness of carbon steel pipes is measured in millimeters, and all dimensions comply with the ASME B36.10 standard.

Nominal size (NPS)		OD	Welded & Seamless Carbon Steel Pipe to ASME B36.10M All dimensions are in mm Pipe Schedule
DN	NPS	mm	10	20	30	40	Std	60	80	XS	100	120	140	160	XXS
6	1/8	10.3	1.24		1.45	1.73	1.73		2.41	2.41
8	1/4	13.7	1.65		1.85	2.24	2.24		3.02	3.02
10	3/8	17.1	1.65		1.85	2.31	2.31		3.20	3.20
15	1/2	21.3	2.11		2.41	2.77	2.77		3.73	3.73				4.78	7.47
20	3/4	26.7	2.11		2.41	2.87	2.87			3.91				5.56	7.82
25	1	33.4	2.77		2.90	3.38	3.38		4.55	4.55				6.35	9.09
32	11/4	42.2	2.77		2.97	3.56	3.56		4.85	4.85				6.35	9.70
40	11/2	48.3	2.77		3.18	3.68	3.68		5.08	5.08				7.14	10.15
50	2	60.3	2.77		3.18	3.91	3.91		5.54	5.54				8.74	11.07
65	21/2	73.0	3.05		4.78	5.16	5.16		7.01	7.01				9.53	14.02
80	3	88.9	3.05		4.78	5.49	5.49		7.62	7.62				11.13	15.24
90	31/2	101.6	3.05		4.78	5.74	5.74		8.08	8.08
100	4	114.3	3.05		4.78	6.02	6.02		8.56	8.56		11.13		13.49	17.12
125	5	141.3	3.40			6.55	6.55		9.53	9.53		12.70		15.88	19.05
150	6	168.3	3.40			7.11	7.11		10.97	10.97		14.27		18.26	21.95
200	8	219.1	3.76	6.35	7.04	8.18	8.18	10.31	12.70	12.70	15.09	18.26	20.62	23.01	22.23
250	10	273.0	4.19	6.35	7.80	9.27	9.27	12.70	15.09	12.70	18.26	21.44	25.40	28.58	25.40
300	12	323.8	4.57	6.35	8.38	10.31	9.53	14.27	17.48	12.70	21.44	25.40	28.58	33.32	25.40
350	14	355.6	6.35	7.92	9.53	11.13	9.53	15.09	19.05	12.70	23.83	27.79	31.75	35.71
400	16	406.4	6.35	7.92	9.53	12.70	9.53	16.66	21.44	12.70	26.19	30.96	36.53	40.49
450	18	457	6.35	7.92	11.13	14.27	9.53	19.05	23.83	12.70	29.36	34.93	39.67	45.24
500	20	508	6.35	9.53	12.70	15.09	9.53	20.62	26.19	12.70	32.54	38.10	44.45	50.01
550	22	559	6.35	9.53	12.70		9.53	22.23	28.58	12.70	34.93	41.28	47.63	53.98
600	24	610	6.35	9.53	14.27	17.48	9.53	24.61	30.96	12.70	38.89	46.02	52.37	59.54
650	26	660	7.92	12.70			9.53			12.70
700	28	711	7.92	12.70	15.88		9.53			12.70
750	30	762	7.92	12.70	15.88		9.53			12.70
800	32	813	7.92	12.70	15.88	17.48	9.53			12.70
850	34	864	7.92	12.70	15.88	17.48	9.53			12.70
900	36	914	7.92	12.70	15.88	19.05	9.53			12.70
950	38	965					9.53			12.70
1000	40	1016					9.53			12.70
1050	42	1067					9.53			12.70
1100	44	1118					9.53			12.70
1150	46	1168					9.53			12.70
1200	48	1219					9.53			12.70