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ASTM A335 P12 Seamless Pipes

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ASTM A335 P12 Seamless Pipes Specification

Connection
Beveled End, Plain End, Threaded

Product Type
Seamless Pipe

Surface Finish
Polished, Annealed, Pickled, Black Painted

Tolerance
1%

End Protector
Plastic Cap

Application
Boiler, Superheater, Heat Exchanger, Power Plant, Oil & Gas, Petrochemical

Material
ASTM A335 P12 Alloy Steel

Section Shape
Round

Standard
ASTM A335 / ASME SA335

Technique
Hot Finished, Cold Drawn

Surface Treatment
Oiled, Varnished, Shot Blasting

Alloy or Not
Alloy

Outer Diameter
12 mm - 914 mm

Thickness
2 mm - 60 mm

Size
As Per Requirement

Length
3m, 6m, 12m, or Custom

Inspection
Third Party Inspection Accepted

Heat Treatment
Quenched and Tempered, Normalized, Annealed

Pipe Ends
Square Cut, Beveled Ends, Threaded with Couplings

Test
Hydrostatic Test, Ultrasonic Test, Eddy Current Test

Certificates
EN 10204 3.1 / 3.2

Minimum Order Quantity
1 Ton

Grade
P12

Manufacturing Process
Seamless

Pipe Type
High Temperature Service Pipe

Marking
Standard Marking as per ASTM Regulation

Corrosion Resistance
Yes

Packaging
Seaworthy Packing, Bundles, Wooden Boxes

Delivery Condition
As Rolled/Normalized

About ASTM A335 P12 Seamless Pipes

What Are Specification ASTM A335 P12 Seamless Pipes?

Size in Inch	1/8NB TO 24NB inch
ASTM Standards	ASTM A 335, and ASME SA 335
Type	Seamless Pipe
Specialized in Size	Large Diameter Size
Outer Dimensions Chart	19.05milimeter 114.3milimeter
Wall Thickness Chart	2.0milimeter 14 milimeter
Length in milimeter	max 16000milimeter
Schedule Chart	Schedule 20 - XXS up to 250 milimeter thk.
Pipe Form	Round, Rectangular, Square, Hydraulic Etc.
Length	Single, Double Random & Cut to Length.
Pipe & Tube End	Plain, Beveled, Treaded.

Equivalent material Of ASTM A335 P12 Seamless Pipes?

ASTM Number	ASME Number	Equivalent Grade	JIS G 3458 Chart	UNS Number	BS Number	DIN Number	ISO Number	ABS Number	NK Numbero	LRS Number
A335 P12	SA335 P12	T12	STPA 23	K12597	3604 P1 621	-	-	ABS 12	KSTPA 23	-

ASTM Standard	British Standards institute(BSI)	Alloy P12 Steel Material
A335 Gr. P12	3604/621	1 1/4% Cr 1/2% Mo

Chemical Composition Of ASTM A335 P12 Seamless Pipes?

Grade	UNS	C	Mn	P	S	Si	Cr	Mo
P12	K11562	0.05~0.15	0.30~0.60	0.025	0.025	0.50	0.80~1.25	0.44~0.65

Mechanical Properties Of ASTM A335 P12 Seamless Pipes?

Tensile Strength, MPa	Yield Strength, MPa	Elongation, %
415 min	205 min	30 min

Reliable High-Temperature Performance

ASTM A335 P12 pipes are designed for reliability under extreme heat and pressure conditions, making them ideal for critical applications such as boilers, superheaters, and power plants. The alloys composition and heat-treated finishes enhance strength and resistance to thermal stress, ensuring dependable operation in demanding industrial environments.

Versatility in Application and Customization

These seamless pipes accommodate a wide range of industrial uses with their customizable lengths, thickness, and diameter. Multiple end finishes and connection types allow seamless integration into a variety of systems in the oil & gas, petrochemical, and power sectors. Their adaptability makes them a preferred choice for complex projects.

Quality Assurance and Certification

Every pipe undergoes rigorous hydrostatic, ultrasonic, and eddy current testing to guarantee structural integrity. Customers can request third-party inspection and receive internationally recognized certificates (EN 10204 3.1/3.2), ensuring full compliance with ASTM standards and project specifications for safety and performance.

FAQs of ASTM A335 P12 Seamless Pipes:

Q: How are ASTM A335 P12 Seamless Pipes manufactured?

A: These pipes are produced using a seamless hot-finished or cold-drawn process, followed by advanced heat treatment methods such as quenching, tempering, normalizing, or annealing, ensuring high strength and reliability for high-temperature service.

Q: What applications are suitable for P12 seamless pipes?

A: ASTM A335 P12 pipes are primarily used in high-temperature environments, such as boilers, heat exchangers, superheaters, power plants, oil and gas industries, and petrochemical facilities, where durability and corrosion resistance are essential.

Q: When is third-party inspection recommended for these pipes?

A: Third-party inspection is recommended when end-users require independent validation of product quality, ensuring compliance with ASTM/ASME standards and project specifications. It can be arranged at any stage prior to shipment.

Q: Where can ASTM A335 P12 Seamless Pipes be supplied from?

A: These pipes are manufactured, supplied, and exported by reputable companies in India, and can be shipped globally with seaworthy packaging to ensure safe delivery.

Q: What is the standard marking and certification process for these pipes?

A: Pipes are marked according to ASTM regulations, and each shipment can be accompanied by EN 10204 3.1 or 3.2 certificates, providing traceability and assurance of compliance with international standards.

Q: How are the pipes tested for quality and safety?

A: Pipes undergo hydrostatic, ultrasonic, and eddy current testing to detect defects and verify performance, ensuring that only pipes meeting stringent quality criteria reach the customer.

Q: What benefits do ASTM A335 P12 Seamless Pipes offer to end-users?

A: They deliver excellent corrosion resistance, high mechanical strength, and longevity in extreme temperatures, reducing maintenance needs and ensuring operational continuity in vital industrial processes.

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