T11 Seamless Pipes Alloy Steel Pipes for High-Temperature, High-Pressure Service

T11 Seamless Pipes Alloy Steel Pipes for High-Temperature, High-Pressure Service

Name: T11 Seamless Pipes Alloy Steel Pipes for High-Temperature, High-Pressure Service
Brand: JAYANT IMPEX
Price: 2500.0 INR
Availability: InStock

2500.0 INR/Piece

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Product Details:

Temperature Range Up to 600C (1112F)
Diameter 10.3 mm - 323.9 mm
Thread Type NPT / BSPT / BSP (on request)
Tolerance As per ASTM A213/A335/A691
Connection Type Welded/Plain End/Threaded (on request)
Flexibility Rigid
Tensile Strength 415 MPa min
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T11 Seamless Pipes Alloy Steel Pipes for High-Temperature, High-Pressure Service Price And Quantity

Minimum Order Quantity 1 Piece
Price 2500.0 INR/Piece

T11 Seamless Pipes Alloy Steel Pipes for High-Temperature, High-Pressure Service Product Specifications

Coating Type No coating / Oil Coated / Varnished (optional)
Yield Strength 220 MPa min
Bend Radius Standard or as per client specification
Tensile Strength 415 MPa min
Flexibility Rigid
Material Alloy Steel
Sealing Type Welded/Threaded (on request)
Section Shape Cylindrical
Connection Type Welded/Plain End/Threaded (on request)
Application Petrochemical, Power Plant, Refineries, Boiler, Heat Exchanger
Standard ASTM A213, ASTM A335, ASTM A691
Rated Pressure High Pressure (as per design specification)
Shape Round
Color Metallic Grey / Silver
Surface Treatment Polished / Annealed / Pickled / Sand Blasted
Outer Diameter 10.3 mm to 323.9 mm (customized)
Tolerance As per ASTM A213/A335/A691
Connection Plain End / Beveled End
Thread Type NPT / BSPT / BSP (on request)
Material Grade T11 (1.7335)
Diameter 10.3 mm - 323.9 mm
Length Single Random, Double Random, Cut Length (up to 12 meters)
Product Type Seamless Alloy Steel Pipe
Temperature Range Up to 600C (1112F)
Usage High-Temperature and High-Pressure services
Thickness 3 mm to 30 mm (customized)

Heat Treatment Normalizing, Tempering, Quenching (as required)
Packaging Bundled, wrapped in plastic, wooden boxes (as required)
Test Certification EN 10204 3.1 / 3.2
Hydrostatic Test Pressure As per ASTM/ASME requirements
Manufacturing Process Seamless (Hot-Finished / Cold-Drawn)
End Protection Plastic Caps on both ends
Marking Standard marking as per ASTM requirements
Inspection 100% Radiography, Ultrasonic Test, Eddy Current Test (as applicable)

Product Description

Governing Standards and International Equivalents

Standard Designation	Publishing Organization	Product Description	Equivalent Material Designation
ASTM A335 Grade P11	ASTM International	Seamless Ferritic Alloy Steel Pipe for High Temperature Service	UNS K11597
ASTM A213 Grade T11	ASTM International	Seamless Ferritic and Austenitic Alloy Steel Boiler Tubes	UNS K11597
ASME SA335 Grade P11	ASME	Seamless Ferritic Alloy Steel Pressure Pipe	UNS K11597
EN 10216 Part 2	European Committee for Standardization	Seamless Steel Tubes for Pressure Purposes Elevated Temperature	13CrMo4 5 or Material Number 1.7335
JIS G3458 Grade STPA23	Japanese Industrial Standards	Alloy Steel Pipes for High Temperature Service	STPA23
JIS G3462 Grade STBA23	Japanese Industrial Standards	Alloy Steel Boiler and Heat Exchanger Tubes	STBA23

Chemical Composition Percentage Limits

Element Name	Chemical Symbol	Minimum Percent	Maximum Percent
Carbon	C	0.05	0.15
Manganese	Mn	0.30	0.60
Phosphorus	P	None	0.025
Sulfur	S	None	0.025
Silicon	Si	0.50	1.00
Chromium	Cr	1.00	1.50
Molybdenum	Mo	0.44	0.65

Heat Treatment and Hardness Limits

Process Parameter	Heat Treatment Method	Temperature Threshold	Hardness Limit
Full Anneal	Austenitizing	Minimum 890 Degrees Celsius	Not Applicable
Isothermal Anneal	Austenitizing then Isothermal Hold	Minimum 890 Degrees Celsius	Not Applicable
Normalizing	Air Cooling	Minimum 890 Degrees Celsius	Not Applicable
Tempering	Subcritical Tempering	Minimum 650 Degrees Celsius	Not Applicable
Brinell Hardness	Hardness Testing HBW	Room Temperature	Maximum 163 HBW
Rockwell Hardness	Hardness Testing HRB	Room Temperature	Maximum 85 HRB

Superior Performance for Demanding Environments

T11 seamless alloy steel pipes are engineered to meet the stringent demands of high-temperature and high-pressure service. With a metallic grey or silver finish, they are suitable for critical operations in power plants, oil refineries, petrochemical units, and heat exchangers. Thanks to their customized sizes and robust construction, they deliver dependable performance, safety, and longevity even under harsh operating conditions.

Stringent Manufacturing & Quality Testing

The manufacturing process of T11 pipes employs seamless hot-finished or cold-drawn methods, ensuring a uniform structure and excellent mechanical properties. Rigorous in-house inspections-including 100% radiography, ultrasonic, and eddy current testing-guarantee strict adherence to ASTM standards. Every pipe is certified, labeled, thoroughly inspected, and protected with plastic caps and quality packaging to ensure flawless quality upon delivery.

FAQ's of T11 Seamless Pipes Alloy Steel Pipes for High-Temperature, High-Pressure Service:

Q: How are T11 seamless alloy steel pipes manufactured?

A: T11 seamless pipes are produced using either hot-finished or cold-drawn techniques, resulting in a uniform cylindrical structure. Depending on the client's requirements, heat treatments like normalizing, tempering, or quenching may be applied to enhance mechanical properties and ensure optimal performance at high temperatures and pressures.

Q: What testing and certifications do these pipes comply with?

A: Each T11 pipe is tested for hydrostatic integrity as per ASTM/ASME standards and undergoes 100% radiography, ultrasonic, and eddy current inspections where applicable. They are certified according to EN 10204 3.1 or 3.2, and all tolerances comply with ASTM A213/A335/A691 requirements, ensuring top-tier quality and safety.

Q: When should T11 alloy steel pipes be used?

A: T11 pipes are ideal for situations demanding performance at elevated temperatures and pressures-most commonly in boilers, power plants, refineries, petrochemical plants, and heat exchangers. Their composition and construction make them suitable for service temperatures up to 600C and high-pressure conditions.

Q: Where can T11 seamless pipes be installed?

A: These pipes are installed in industrial facilities such as petrochemical complexes, power generation stations, refineries, and equipment like boilers and heat exchangers. Their robust design allows safe usage in a wide range of critical and hazardous environments across India and internationally.

Q: What are the primary benefits of choosing T11 seamless pipes?

A: T11 seamless pipes offer high tensile (415 MPa min) and yield strength (220 MPa min), superior heat resistance, and excellent durability. Their seamless design ensures leak-proof connections, while rigorous testing and standard marking deliver reliability and compliance for high-stakes industrial objectives.

Q: How are T11 pipes protected and delivered?

A: For optimum protection during transit, both pipe ends are sealed with plastic caps. Pipes may be bundled, wrapped in plastic, or packed in wooden boxes as required. Standard markings per ASTM and customized packaging ensure safe, traceable delivery to clients worldwide.

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