ASTM A106 Seamless Pipe

At UNIACERO, we proudly present the ASTM A106 and ASME SA106 seamless pressure pipes, integral for high-temperature service applications. These pipes are extensively utilized in the construction of oil and gas refineries, power plants, petrochemical plants, boilers, and ships. Our pipes are designed to efficiently transport fluids and gases, especially under conditions of elevated temperatures and pressure levels.

Dedicated to excellence, we prioritize the use of top-tier carbon steel materials. Adhering rigorously to the stringent criteria outlined in the ASTM A106 and ASME SA106 specifications, each pipe surpasses the stipulated benchmarks for weight, length, and testing requirements. Trust in our expertise to provide you with pipes that meet the highest industry standards and enhance the efficiency of your operations.

ASTM A106 Specification

Our ASTM A106 and ASME SA106 pipes come with a comprehensive specification range. They are available in Grades A, B, and C, with dimensions ranging from NPS ¼” to 36” OD. The production procedures we employ ensure the pipes are suitable for bending, flanging, and similar forming operations. Additionally, our pipes are available with various surface coatings, end types, joint methods, and machining services, ensuring they fit seamlessly into your specific requirements.

Crafted for elevated temperature applications, our seamless carbon steel pipes strictly adhere to the standard specification for seamless carbon steel pipes designed to withstand high-temperature service. This commitment ensures the pipes meet the specified minimum yield strength and wall thickness requirements, providing reliability and durability in challenging conditions.

Production Standard	ASTM A106
Manufacturing Processes	ERW (Electric Resistance Welding)
Manufacturing Processes	SMLS (Cold Drawn Seamless)
Outside Diameter	33.4mm – 355.6mm (1″ – 14″)
Wall Thickness	Sch5, Sch10, Sch30, Sch40
Pipe Length	1.5 – 12 meters
Steel Grade	Depending on the implementation criteria chosen by the customer, see other home page standards for details.
Corrosion Prevention	Lacquer, Primer, Galvanizing, FBE coating
End Processes	Square Cut, Bevelling, Grooving
Further Processing	Welding, Bending, Hole Drilling, Punching, Swaging, Tapering, Flaring, Expanding as per customer demand

ASTM A106 Dimension Table

Our pipes are meticulously crafted to meet precise dimensions. Ranging from NPS 1/8 to NPS 48, they come with a nominal wall thickness as specified in ANSI B 36.10. Whether you require hot-finished or cold-drawn pipes under NPS 1-1/2″, or hot-finished for larger sizes, we cater to all your dimensional needs, ensuring optimal performance and fit.

Steel Pipe Dimensions Chart ANSI B36. 10
Nominal Pipe Size		Outside Diameter (mm)	Nominal Wall Thickness Schedule
NPS	DN	OD	SCH 10	SCH 20	SCH 30	SCH Sth	SCH 40	SCH 60	SCH XS	SCH 80	SCH 100	SCH 120	SCH 140	SCH 160	SCH XXS
1/8	6	10.3	1.24	–	1.45	1.73	1.73	–	2.41	2.41	–	–	–	–	–
1/4	8	13.7	1.65	–	1.85	2.24	2.24	–	3.02	3.02	–	–	–	–	–
3/8	10	17.1	1.65	–	1.85	2.31	2.31	–	3.20	3.20	–	–	–	–	–
1/2	15	21.3	2.11	–	2.41	2.77	2.77	–	3.73	3.73	–	–	–	4.78	7.47
3/4	20	26.7	2.11	–	2.41	2.87	2.87	–	3.91	3.91	–	–	–	5.56	7.82
1	25	33.4	2.77	–	2.9	3.38	3.38	–	4.55	4.55	–	–	–	6.35	9.09
1 1/4	32	42.2	2.77	–	2.97	3.56	3.56	–	4.85	4.85	–	–	–	6.35	9.70
1 1/2	40	48.3	2.77	–	3.18	3.68	3.68	–	5.08	5.08	–	–	–	7.14	10.15
2	50	60.3	2.77	–	3.18	3.91	3.91	–	5.54	5.54	–	–	–	8.74	11.07
2 1/2	65	73	3.05	–	4.78	5.16	5.16	–	7.01	7.01	–	–	–	9.53	14.02
3	80	88.9	3.05	–	4.78	5.49	5.49	–	7.62	7.62	–	–	–	11.13	15.24
3 1/2	90	101.6	3.05	–	4.78	5.74	5.74	–	8.08	8.08	–	–	–	–	–
4	100	114.3	3.05	–	4.78	6.02	6.02	–	8.56	8.56	–	11.13	–	13.49	17.12
5	125	141.3	3.40	–	–	6.55	6.55	–	9.53	9.53	–	12.70	–	15.88	19.05
6	150	168.3	3.40	–	–	7.11	7.11	–	10.97	10.97	–	14.27	–	18.26	21.95
8	200	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
10	250	273.0	4.19	6.35	7.80	9.27	9.27	12.70	12.70	15.09	18.26	21.44	25.40	28.58	25.40
12	300	323.8	4.57	6.35	8.38	9.53	10.31	14.27	12.70	17.48	21.44	25.40	28.58	33.32	25.40
14	350	355.6	6.35	7.92	9.53	9.53	11.13	15.09	12.70	19.05	23.83	27.79	31.75	35.71	–
16	400	406.4	6.35	7.92	9.53	9.53	12.70	16.66	12.70	21.44	26.19	30.96	36.53	40.49	–
18	450	457	6.35	7.92	11.13	9.53	14.27	19.05	12.70	23.83	29.36	34.93	39.67	45.24	–
20	500	508	6.35	9.53	12.70	9.53	15.09	20.62	12.70	26.19	32.54	38.10	44.45	50.01	–
22	550	559	6.35	9.53	12.70	9.53	–	22.23	12.70	28.58	34.93	41.28	47.63	53.98	–
24	600	610	6.35	9.53	14.27	9.53	17.48	24.61	12.70	30.96	38.89	46.02	52.37	59.54	–
26	650	660	7.92	12.70	–	9.53	–	–	12.70	–	–	–	–	–	–
28	700	711	7.92	12.70	15.88	9.53	–	–	12.70	–	–	–	–	–	–
30	750	762	7.92	12.70	15.88	9.53	–	–	12.70	–	–	–	–	–	–
32	800	813	7.92	12.70	15.88	9.53	17.48	–	12.70	–	–	–	–	–	–
34	850	864	7.92	12.70	15.88	9.53	17.48	–	12.70	–	–	–	–	–	–
36	900	914	7.92	12.70	15.88	9.53	19.05	–	12.70	–	–	–	–	–	–
38	950	965	–	–	–	9.53	–	–	12.70	–	–	–	–	–	–
40	1000	1016	–	–	–	9.53	–	–	12.70	–	–	–	–	–	–
42	1050	1067	–	–	–	9.53	–	–	12.70	–	–	–	–	–	–
44	1100	1118	–	–	–	9.53	–	–	12.70	–	–	–	–	–	–
46	1150	1168	–	–	–	9.53	–	–	12.70	–	–	–	–	–	–
48	1200	1219	–	–	–	9.53	–	–	12.70	–	–	–	–	–	–

Chemical Requirements of ASTM A106

At UNIACERO, we understand the importance of chemical composition in determining the pipe’s properties. Our ASTM A106 and ASME SA106 pipes are manufactured with a specific chemical composition, ensuring they can withstand high temperatures and pressures. This precise composition guarantees the pipe’s durability, resistance to corrosion, and overall performance in demanding environments.

Composition %
Element	Grade A	Grade B	Grade C
Carbon，max	0.25	0.30	0.35
Manganese	0.27-0.93	0.29-1.06	0.29-1.06
Phosphorus，max	0.035	0.035	0.035
Sulfur，max	0.035	0.035	0.035
Silicon，min	0.10	0.10	0.10
Chromium，max	0.40	0.40	0.40
Copper，max	0.40	0.40	0.40
Molybdenum，max	0.15	0.15	0.15
Nickel，max	0.40	0.40	0.40
Vanadium，max	0.08	0.08	0.08

Mechanical Requirements of ASTM A106

Our pipes are not just chemically sound but also mechanically robust. These steel pipes undergo thorough mechanical tests, including the flattening test, ensuring that they conform to the standard specification for seamless carbon steel pipes. They are designed to handle stress, pressure, and temperature variations with ease. The mechanical properties of our pipes, from their tensile strength to their hardness, are optimized to ensure they perform consistently under varying conditions, making them a reliable choice for your operations.

Mechanical Properties	Grade A	Grade B	Grade C
Tensile Strength，min，psi [MPa]	48 000 [330]	60 000 [415]	70 000 [485]
Yield Strength，min，psi [MPa]	30 000 [205]	35 000 [240]	40 000 [275]

Steel Grades in ASTM A106

We offer ASTM A106 and ASME SA106 pipes in three distinct steel grades: Grade A, Grade B, and Grade C. Each grade is tailored to specific applications and temperature ranges, ensuring you get a product that’s perfectly aligned with your needs. Whether you prioritize ductility, strength, or temperature resistance, we have a grade that’s right for you.