ASTM A691 Grade 2 14 CR Seamless Pipes

Get a Price/Quote

ASTM A691 Grade 2 14 CR Seamless Pipes Specification

Connection
Beveled End, Plain End

Product Type
Seamless Pipes

Application
Oil and Gas, Petrochemical, Boiler, Power Plant

Tolerance
+/- 1%

End Protector
Plastic Caps

Surface Finish
Polished

Material
ASTM A691 Grade 2 1/4 CR (Cr-Mo Alloy Steel)

Section Shape
Round

Standard
ASTM A691

Technique
Hot Finished

Surface Treatment
Oiled, Anti-Rust Coated

Alloy or Not
Alloy

Outer Diameter
1/2 to 24 (12.7 mm to 609.6 mm)

Thickness
2 mm to 60 mm

Size
Customized

Length
Single, Double, or Custom Lengths up to 12 meters

About ASTM A691 Grade 2 14 CR Seamless Pipes

What Are Specification ASTM A691 Grade 2 1/4 CR Seamless Pipes?

Grade	Alloy Steel ASTM A691 Cl22, A691 GRADE 1 CR, GRADE 1/2 CR, GRADE 1 1/4 CR, GRADE 2 1/4 CR, GRADE 3 CR, GRADE 5 CR, GRADE 9 CR, GRADE 91, CM 65, CM 70, CM 75
Size	1/2 NB to 36 NB
Thickness	3-12mm
Schedules	SCH5, SCH10, SCH10S, SCH20, SCH30, SCH40, SCH40S, STD, SCH80, XS, SCH60, SCH80, SCH120, SCH140, SCH160, XXS
Class Designation	Class 10, 11, 12, 13, 20, 21, 22, 23, 30, 31, 32, 33, 34, 40, 41, 42, 43, 50, 51, 52, 53, 60, 61, 62, 63, 70, 71, 72, 73
ASTM A691 Grades	ASTM A691 Gr 11, ASTM A691 Gr.91, ASTM A691 9cr, ASTM A691 5cr, ASTM A691 1 1/4cr Cl22, ASTM A691m, ASTM A691 Gr.5cr Cl22, ASTM A691 Cm70, ASTM A691 Class 22, ASTM A691 Class 42, ASTM A691-91, ASTM A691 Grade 2.1/4cr, ASTM A691 11/4cr Cl22
Origin	European, Japanese, Korean, US, Russian, Indian (Strictly No Chinese Material)
Tolerance	Cold drawn pipe: +/-0.1mm Cold rolled pipe: +/-0.05mm
Craft	Cold rolled and Cold drawn
Type	Seamless / ERW / Welded / Fabricated / LSAW Pipes
available in Form of	Round, Square, Rectangular, Hydraulic Etc.
Length	Standard Double & In Cut length also.
End	Plain End, Beveled End, Treaded
Specialized in	Large Diameter ASTM A691 Pipe
Additional Testing	NACE MR 0175, NACE TM0177, NACE TM0284, HIC TEST, SSC TEST, H2 SERVICE, IBR, etc.
Application	Seamless Ferritic Alloy-Steel Pipe for High-Temperature Service

Equivalent material Of ASTM A691 Grade 2 1/4 CR Seamless Pipes?

Pipe Grade	Type of Steel	ASTM Specification		HB, max
Pipe Grade	Type of Steel	Number	Grade	HB, max
CM-65	carbon-molybdenum steel	A204/A204M	A	201
CM-70	carbon-molybdenum steel	A204/A204M	B	201
CM-75	carbon-molybdenum steel	A204/A204M	C	201
CMSH-70	carbon-manganese-silicon steel, normalized	A537/A537M	1
CMS-75	carbon-manganese-silicon steel	A299/A299M
CMSH-80	carbon-manganese-silicon steel, quenched and tempered	A537/A537M	2
1/2 CR	1/2 % chromium, 1/2 % molybdenum steel	A387/A387M	2	201
1 CR	1 % chromium, 1/2 % molybdenum steel	A387/A387M	12	201
1 1/4 CR	1 1/4 % chromium, 1/2 % molybdenum steel	A387/A387M	11	201
2 1/4 CR	2 1/4 % chromium, 1 % molybdenum steel	A387/A387M	22	201
3 CR	3 % chromium, 1 % molybdenum steel	A387/A387M	21	201
5 CR	5 % chromium, 1/2 % molybdenum steel	A387/A387M	5	225
9 CR	9 % chromium, 1 % molybdenum steel	A387/A387M	9	241
91	9 % chromium, 1 % molybdenum, vanadium, columbium	A387/A387M	91	241

Chemical Composition Of ASTM A691 Grade 2 1/4 CR Seamless Pipes?

	1CR	1-1/4CR	2-1/4 CR	5 CR	9 CR	91
C	0.05-0.17	0.05-0.17	0.05-0.15	0.15	0.15	0.08-0.12
Mn	0.40-0.65	0.40-0.65	0.30-0.60	0.30-0.60	0.30-0.60	0.30-0.60
P	0.025	0.025	0.025	0.025	0.025	0.020
S	0.025	0.025	0.025	0.025	0.025	0.010
Si	0.15-0.40	0.50-0.80	0.50	0.50	1.00	0.20-0.50
Cr	0.80-1.15	1.00-1.50	2.00-2.50	4.00-6.00	8.00-10.00	8.00-9.50
Mo	0.45-0.60	0.45-0.65	0.90-1.10	0.45-0.65	0.90-1.10	0.85-1.05
V					0.04	0.18-0.25

Mechanical Properties Of ASTM A691 Grade 2 1/4 CR Seamless Pipes?

Class	Heat Treatment on Pipe Section see:	Radiography, see Section	Pressure Test, see :
10	none	none	none
11	none	9	none
12	none	9	8.3
13	none	none	8.3
21	stress relieved, see 6.3.1	none	none
21	stress relieved, see 6.3.1	9	none
ASTM A691 Class 22	stress relieved, see 6.3.1	9	8.3
23	stress relieved, see 6.3.1	none	8.3
31	normalized, see 6.3.2	none	none
31	normalized, see 6.3.2	9	none
32	normalized, see 6.3.2	9	8.3
33	normalized, see 6.3.2	none	8.3
40	normalized and tempered, see 6.3.3	none	none
43	normalized and tempered, see 6.3.3	9	none
43	normalized and tempered, see 6.3.3	9	8.3
43	normalized and tempered, see 6.3.3	none	8.3
50	quenched and tempered, see 6.3.4	none	none
51	quenched and tempered, see 6.3.4	9	none
52	quenched and tempered, see 6.3.4	9	8.3
53	quenched and tempered, see 6.3.4	none	8.3
60	normalized and precipitation heat none none treated	none	none
61	normalized and precipitation heat none none treated	9	none
62	normalized and precipitation heat none none treated	9	8.3
63	normalized and precipitation heat none none treated	none	8.3
70	normalized and precipitation heat none none treated	none	none
71	normalized and precipitation heat none none treated	9	none
72	normalized and precipitation heat none none treated	9	8.3
73	normalized and precipitation heat none none treated	none	8.3

Exceptional Durability and Performance

Manufactured from Cr-Mo alloy steel, ASTM A691 Grade 2 1/4 CR pipes offer superb strength and longevity. Their normalized and tempered heat treatment boosts resistance to wear and fatigue, even under harsh operational conditions encountered in power plants, oil and gas, and petrochemical facilities.

Stringent Quality Standards

These pipes undergo hydrostatic and nondestructive testing, ensuring consistent quality and safety in critical applications. Each pipe is marked either as per ASTM A691 standards or with customized markings, providing traceability and meeting specific project requirements.

Customizable Solutions for Versatile Applications

Available in various diameters (12.7 mm609.6 mm), thicknesses (2 mm60 mm), and lengths (up to 12 meters), these pipes can be tailored to any high-pressure, high-temperature setting. End options include square cut, plain, beveled, or threaded for seamless integration into different systems.

FAQs of ASTM A691 Grade 2 14 CR Seamless Pipes:

Q: How are ASTM A691 Grade 2 1/4 CR Seamless Pipes manufactured?

A: These pipes are produced using seamless and electric fusion welded (EFW) techniques from Cr-Mo alloy steel, followed by heat treatment processes such as normalization and tempering to enhance durability and mechanical properties.

Q: What applications are best suited for ASTM A691 Grade 2 1/4 CR pipes?

A: They are ideal for high-pressure, high-temperature environments, commonly used in oil and gas industries, petrochemical plants, boilers, and power plants due to their excellent mechanical strength and corrosion resistance.

Q: When should I choose seamless over EFW pipes for my project?

A: Seamless pipes are recommended for applications demanding superior strength, leak-proof integrity, and uniform structure, while EFW pipes are suitable for larger diameters or when cost efficiency is a priority without compromising safety.

Q: Where are these pipes primarily supplied from?

A: ASTM A691 Grade 2 1/4 CR pipes are manufactured, exported, and supplied by experienced companies in India, catering to global markets across various industrial sectors.

Q: What testing and quality assurance is performed on these pipes?

A: Each pipe undergoes rigorous hydrostatic tests and nondestructive examinations (NDT) in compliance with ASTM A691 to ensure reliability and consistent quality for critical service conditions.

Q: How does the chemical composition benefit these pipes?

A: The controlled chromium and molybdenum content ensures excellent resistance to oxidation, corrosion, and high-temperature scaling, extending service life and reliability in demanding applications.

Q: What marking and custom options are available for these pipes?

A: Pipes can be supplied with standard ASTM A691 markings or customized per client requirements, including unique project codes or traceability features for ease of identification and logistics.

Tell us about your requirement