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Alloy Steel Pipe

Name: Alloy Steel Pipe
Brand: Ever Nickel
Price: 99.99 USD
Availability: InStock
Rating: 4.8 (50 reviews)

Keywords(pipe type): Alloy Pipe, Alloy Tube, Alloy Steel Pipe, Alloy Steel Tube

Size: OD: 1/8'' ~ 26''; WT: SCH 30, 30, 40, 60, 80, 120, 140, 160, XS, XXS, STD;Length: Single Random, Double Random, Cut Length max to 23m

Standard & Grade: ASTM A333, A335 P5/P9/P11/P22/P91, DIN 17175, JIS G3458

Ends: Plain End, Beveled End, Thread End

Delivery: Within 30 days and Depends on your order quantity

Packing: Bundled with Hemp Rope/In Bulk

Usage: Used for low pressure liquid delivery, such as water, gas, and oil

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Description
Specification
Standard
Process
Packing

High-Performance Alloy Seamless Steel Pipe–Heat & Corrosion Resistant Solutions

Our Alloy Seamless Steel Pipes are engineered for high-temperature, high-pressure, and corrosive environments where standard carbon steel fails. By incorporating elements like Chromium, Molybdenum, and Nickel, these pipes offer superior mechanical properties, creep resistance, and durability. Whether for power generation or refinery processes, our alloy piping ensures long-term operational safety.

Common Standards and Steel Grades

We provide a wide range of low-alloy and high-alloy seamless pipes following international benchmarks:

ASTM A335 (ASME SA335): The "Chrome-Moly" pipe standard for high-temperature service.

Common Grades: P5, P9, P11, P22, P91, P92.

ASTM A213 (ASME SA213): Seamless ferritic and austenitic alloy-steel boiler, superheater, and heat-exchanger tubes.

Common Grades: T5, T9, T11, T22, T91.

DIN 17175: Heat-resistant seamless steel tubes.

Common Grades: 13CrMo44, 10CrMo910.

EN 10216-2: Seamless steel tubes for pressure purposes.

Common Grades: 16Mo3, 13CrMo4-5.

Dimensions and Technical Specifications

We offer customized sizing and heavy-wall options to meet specific engineering drawings:

Feature	Specification Range
Outer Diameter (OD)	1/4” to 36” (13.7mm – 914.4mm)
Wall Thickness (WT)	SCH 40, SCH 80, SCH 160, SCH XXS (up to 100mm for heavy wall)
Length	Single Random, Double Random, or Fixed Length (up to 12m or 15m)
Surface Treatment	Bare, Black Painting, Anti-corrosion Oil, or Galvanized
End Preparation	Beveled Ends (BW), Plain Ends (PE), or Threaded & Coupled

Core Application Fields

Alloy seamless pipes are the backbone of critical infrastructure and heavy industry:

Power Generation: Main steam lines, reheat piping, and superheater tubes in thermal power plants.

Petrochemical & Refining: High-temperature furnace tubes, heat exchangers, and catalytic cracking units.

Chemical Processing: Transporting corrosive media and high-pressure chemical reactions.

Boiler Manufacturing: High-pressure boiler tubes and headers.

Oil & Gas: Downhole tools and high-sulfur environment transport.

Chemical composition

Element	Grade P11	Grade P22	Grade P5	Grade P9	Grade P91
Carbon	0.05–0.15	0.05–0.15	0.15 max	0.15 max	0.08–0.12
Manganese	0.30–0.60	0.30–0.60	0.30–0.60	0.30–0.60	0.30–0.60
Phosphorus (max)	0.025	0.025	0.025	0.025	0.02
Sulfur (max)	0.025	0.025	0.025	0.025	0.01
Silicon	0.50–1.00	0.50 max	0.50 max	0.25–1.00	0.20–0.50
Chromium	1.00–1.50	2.00–2.50	4.00–6.00	8.00–9.50	8.00–9.50
Molybdenum	0.44–0.65	0.87–1.13	0.45–0.65	0.90–1.10	0.85–1.05
Vanadium	...	...	...	...	0.18–0.25

Dimention Tolerance

Nominal Pipe Size (NPS)	OD Tolerance (Over)	OD Tolerance (Under)	Wall Thickness (WT) Tolerance	Length Tolerance
Nominal Pipe Size (NPS)	OD Tolerance (Over)	OD Tolerance (Under)	Wall Thickness (WT) Tolerance	Single Random (SRL)	Double Random (DRL)	Fixed Length
1/8" to 1-1/2"	+0.4 mm (1/64")	-0.8 mm (1/32")	-12.5% (Min. Wall)	± 500mm	± 500mm	+6mm / -0mm
Over 1-1/2" to 4"	+0.8 mm (1/32")	-0.8 mm (1/32")	-12.5% (Min. Wall)
Over 4" to 8"	+1.6 mm (1/16")	-0.8 mm (1/32")	-12.5% (Min. Wall)
Over 8" to 18"	+2.4 mm (3/32")	-0.8 mm (1/32")	-12.5% (Min. Wall)
Over 18" to 36"	+3.2 mm (1/8")	-0.8 mm (1/32")	-12.5% (Min. Wall)

Mechanical properties

Property	P11, P22, P5, P9	Grade P91	Grade P92
Tensile Strength (min)	415 MPa (60 ksi)	585 MPa (85 ksi)	620 MPa (90 ksi)
Yield Strength (min)	205 MPa (30 ksi)	415 MPa (60 ksi)	440 MPa (64 ksi)
Elongation (Longitudinal)	30%	20%	20%
Hardness (max)	163 HB / 85 HRB	250 HB / 25 HRC	250 HB / 25 HRC

SPECIFICATION STANDARD (STEEL PIPE)

Normal Diameter		OD(MM)	WALL THICKMESS(MM)
Normal Diameter		OD(MM)	ANSI B36.10M						ANSI B36.19M
A(MM)	B(INCH)	ASME	SCH5/5S	SCH10S	SCH10	SCH20	SCH30	STD	SCH40	SCH40S	SCH60	XS	SCH80	SCH80S	SCH100	SCH120	SCH140	SCH160	XXS
15	1/2"	21.34	1.65	2.11	2.11		2.41	2.77	2.77	2.77		3.73	3.73	3.73				4.78	7.47
20	3/4"	26.67	1.65	2.11	2.11		2.41	2.87	2.87	2.87		3.91	3.91	3.91				5.56	7.82
25	1"	33.40	1.65	2.77	2.77		2.9	3.38	3.38	3.38		4.55	4.55	4.55				6.35	9.09
32	1.1/4"	42.16	1.65	2.77	2.77		2.97	3.56	3.56	3.56		4.85	4.85	4.85				6.35	9.7
40	1.1/2"	48.26	1.65	2.77	2.77		3.18	3.68	3.68	3.68		5.08	5.08	5.08				7.14	10.15
50	2"	60.32	1.65	2.77	2.77		3.18	3.91	3.91	3.91		5.54	5.54	5.54				8.74	11.07
65	2.1/2"	73.02	2.11	3.05	3.05		4.78	5.16	5.16	5.16		7.01	7.01	7.01				9.53	14.02
80	3"	88.90	2.11	3.05	3.05		4.78	5.49	5.49	5.49		7.62	7.62	7.62				11.13	15.25
90	3.1/2"	101.60	2.11	3.05	3.05		4.78	5.74	5.74	5.74		8.08	8.08	8.08
100	4"	114.30	2.11	3.05	3.05		4.78	6.02	6.02	6.02		8.56	8.56	8.56		11.13		13.49	17.12
125	5"	141.30	2.77	3.40	3.40			6.55	6.55	6.55		9.53	9.53	9.53		12.7		15.88	19.05
150	6"	168.28	2.77	3.40	3.40			7.11	7.11	7.11		10.97	10.97	10.97		14.27		18.26	21.95
200	8"	219.08	2.77	3.76	3.76	6.35	7.04	8.18	8.18	8.18	10.31	12.7	12.7	12.7	15.09	18.26	20.62	23.01	22.23
250	10"	273.05	3.40	4.19	4.19	6.35	7.8	9.27	9.27	9.27	12.7	12.7	15.09	12.7	18.26	21.44	25.4	28.58	25.4
300	12"	323.85	3.96	4.57	4.57	6.35	8.38	9.53	10.31	9.53	14.27	12.7	17.48	12.7	21.44	25.4	28.58	33.32	25.4
350	14"	355.60	3.96	4.78	6.35	7.92	9.53	9.53	11.13	9.53	15.09	12.7	19.05	12.7	23.83	27.79	31.75	35.71
400	16"	406.40	4.19	4.78	6.35	7.92	9.53	9.53	12.7	9.53	16.66	12.7	21.44	12.7	26.19	30.96	36.53	40.49
450	18"	457.20	4.19	4.78	6.35	7.92	11.13	9.53	14.27	9.53	19.05	12.7	23.83	12.7	29.36	34.93	39.67	45.24
500	20"	508.00	4.78	5.54	6.35	9.53	12.7	9.53	15.09	9.53	20.62	12.7	26.19	12.7	32.54	38.1	44.45	50.01
550	22"	558.80	4.78	5.54	6.35	9.53	12.7	9.53			22.23	12.7	28.58		34.93	41.28	47.63	53.98
600	24"	609.60	5.54	6.35	6.35	9.53	14.27	9.53	17.48	9.53	24.61	12.7	30.96	12.7	38.89	46.02	52.37	59.54
650	26"	660.40			7.92	12.7		9.53				12.7
700	28"	711.20			7.92	12.7	15.88	9.53				12.7
750	30"	762.00	6.35		7.92	12.7	15.88	9.53				12.7
800	32"	812.00			7.92	12.7	15.88	9.53	17.48			12.7
850	34"	863.60			7.92	12.7	15.88	9.53	17.48			12.7
900	36"	914.40			7.92	12.7	15.88	9.53	19.05			12.7