Specification of ASTM Seamless Pipe

The standard used for ASTM seamlelss pipes is ASME B36.10M or ASME B16.19M. The size range from 1/8 inch to 48 inche. There are also various specifications for wall thickness, such as SCH40, STD, XS, SCH80, SCH160, XXS, etc. Different wall thickness specifications are suitable for different application environments and pressure requirements.

Weight List of ASTM Seamless Pipe

Nominal Size		OD	kg/m
DN	NPS	mm	Sch 10	Sch 20	Sch 30	STD	Sch 40	Sch 60	XS	Sch 80	Sch 100	Sch 120	Sch 140	Sch 160	XXS
6	1/8	10.3	0.28		0.32	0.37	0.37		0.47	0.47
8	1/4	13.7	0.49		0.54	0.63	63		0.8	0.8
10	3/8	17.1	0.83		0.7	0.84	0.84		1.1	1.1
15	1/2	21.3	1		1.12	1.27	1.27		1.62	1.62				1.95	2.55
20	3/4	26.7	1.28		1.44	1.69	1.69		2.2	2.2				1.9	364
25	1	33.4	2.09		2.18	2.5	2.5		3.24	3.24				4.24	5.45
32	1 1/4	42.2	2.7		287	3.39	3.39		4.47	4.47				5.16	7.77
40	1 1/2	48.3	3.11		3.53	4.05	4.05		5.41	5.41				7.25	9.58
50	2	60.3	3.03		4.48	5.44	5.44		7.48	7.48				11.11	13.44
65	2 1/2	73	5.26		8.04	8.63	863		11,41	11.41				14.92	20.39
80	3	88.9	6.45		9.92	11.29	1.29		15.72	15.72				21.35	27.68
90	3 1/2	101.6	7.4		1.41	13.57	13.57		18.63	18.63
100	4	114.3	8.38		12.91	18.07	16.07		22.32	22.32		28.32		33.54	41.03
125	5	141.3	11.57			21.77	21.77		30.97	30.87		40.28		40.11	57.43
150	6	168.3	13.48			28.26	28.26		42.58	42.56		5420		67.58	79.22
200	8	219.1	19.98	33.31	36.81	42.55	42.55	53.08	84.64	84.84	75.92	90.44	100.9	11.3	107.9
250	10	273	27.78	41.77	51.03	60.31	60.31	81.55	81.55	96.01	114	133.1	155.2	172.3	155.2
300	12	323.9	36	49.72	85.2	73.88	79.73	109	97.48	32.1	159.9	87	208.1	238	187
350	14	355.6	54.69	67.9	81.33	81.33	94.55	126.7	107.4	58.1	195	224.7	253.6	281.7
400	16	406.4	62.64	77.83	93.27	93.27	123.3	160.1	123.3	209.5	2456	206.7	333.2	365.4
450	18	457	70.57	37.71	122.4	105.2	155.8	205.7	139.2	254.6	4098	363.8	408.3	459.4
500	20	508	78.55	117.2	155.1	117.2	183.4	247.8	155.1	311.2	381.5	441.5	508.1	564.8
550	22	559	86.54	129.1	171.1	129.1	–	294.2	171.1	373.8	451.4	527	611	672.2
600	24	610	94.53	141.1	209.6	141.1	255.4	355.3	187.1	442.1	547.7	640	720.2	808.2

Material Standards for Seamless Pipe

ASTM seamless pipe materials include carbon steel; low-temperature steel; pipeline steel; alloy steel; stainless steel and duplex stainless steel.

Carbon Steel

Carbon steel is one of the main materials for ASTM seamless pipe. It is mainly composed of iron and carbon, and may contain small amounts of elements such as manganese, phosphorus, etc. Carbon steel has excellent mechanical and processing properties and is widely used in various industrial fields.

Chemical Composition

Mechanical Properties

Low-Temperature Steel

Low temperature seamless pipe is a steel pipe material with excellent performance in low-temperature environments. It must meet the -46 ℃ impact requirement. Widely used in various fields such as petroleum, chemical, natural gas, electricity, aviation, and shipbuilding. It can maintain stability in strength and hardness at extremely low temperatures, ensuring the normal operation of pipelines and equipment.

Chemical Composition

Mechanical Properties       

API 5L Seamless Pipe

API 5L seamless pipe has become an important material for long-distance fluid transportation pipelines due to its high strength, high toughness, good weldability, and corrosion resistance.

Chemical Composition

Mechanical Properties 

Alloy Steel

Alloy steel is made on the basis of carbon steel by adding one or more alloying elements such as chromium, nickel, molybdenum, silicon, etc.

Chemical Composition

Mechanical Properties 

Stainless Steel Seamless Pipe

Stainless steel is an alloy steel with corrosion resistance, mainly composed of elements such as iron, chromium, nickel, etc.

Chemical Composition

Mechanical Properties 

Duplex Stainless Steel Seamless Pipe

Duplex stainless steel seamless steel pipes have excellent resistance to comprehensive corrosion and localized corrosion, good weldability and processability.

Chemical Composition

Mechanical Properties 

How to Inspect ASTM Seamless Pipe

Package of Seamless Pipe

ASTM seamless pipes require surface treatment before packaging. Carbon steel pipes are generally coated with anti rust paint or galvanized to protect their surface and prevent rusting. Stainless steel pipes undergo acid pickling and sandblasting treatment on the surface to ensure a clean and tidy appearance.
ASTM seamless pipes are often packaged by bundling them together. Bundled steel pipes should be firmly tied with steel strips or wires to ensure that they will not loosen during transportation. Sealing and labeling should be applied before packaging, and the labels should be clear and legible.

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