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ASTM A335 T2 Alloy Steel Seamless Tubes – High Performance Boiler Tubes

ASTM A335 T2 seamless tubes are chromium molybdenum alloy steel tubes designed for moderate to high temperature applications. These tubes are widely used in boilers, heat exchangers, and industrial systems where strength, durability, and thermal resistance are essential.

Product Overview – ASTM A335 T2 Seamless Tubes

ASTM A335 T2 seamless tubes are alloy steel tubes engineered for high temperature service and heat transfer applications.With an optimized composition of chromium and molybdenum, T2 offers improved strength and oxidation resistance compared to lower grades.

These tubes are ideal for systems where consistent performance under thermal stress and pressure is required. The seamless manufacturing process ensures uniform structure, enhanced durability, and reliable pressure handling capability.

Post-manufacturing treatments such as normalizing and tempering improve the mechanical properties, making these tubes suitable for demanding industrial environments.

ASTM A335 T2 tubes are widely used in boilers, heat exchangers, condensers, and refinery systems.

Standard & International Identification - ASTM A335 T2 Seamless Tubes

Standard ASTM A335 / ASME SA335
Grade T2
UNS K11572
Material Type : Chromium Molybdenum Alloy Steel

Technical Specifications – ASTM A335 T2 Tubes

Tube Type: Seamless Alloy Steel Tubes
Manufacturing Process: Hot Rolling → Cold Drawing → Heat Treatment → Inspection
Outer Diameter: 6 mm – 325 mm
Wall Thickness: 1 mm – 35 mm
Length Options: Single Random Length/Cut Length / U-Bend Tubes Available
Surface Finish: Black Finish / Pickled Surface /Bright Annealed
Testing & Inspection: Hydrostatic Test,Ultrasonic Testing,Eddy Current Testing,Hardness Testing
Certification : EN 10204 3.1 / 3.2 MTC

Third Party Inspection Available

All specifications are in accordance of ASTM A335 / ASME SA335 standards. Mechanical and chemical values are as per standard limits. Mill Test Certificates (MTC) available upon request.

Chemical Composition – ASTM A335 T2

(As per ASTM specification)
Element Max (%)
Carbon (C): 0.10 – 0.20%
Manganese (Mn): 0.30 – 0.80%
Silicon (Si): 0.10 – 0.50%
Chromium (Cr): 0.50 – 1.25%
Molybdenum (Mo): 0.44 – 0.65%
Phosphorus (P): Max 0.025%
Sulfur (S): Max 0.025%
Iron : Balance
Note: This composition enhances strength and heat resistance.

Mechanical Properties – ASTM A335 T2 Tubes

Property Minimum Value
Tensile Strength 415 MPa
Yield Strength 205 MPa
Elongation 30%
These properties make T2 suitable for heat transfer and pressure systems.

Heat Resistance & Performance

ASTM A335 T2 tubes are designed for moderate to high temperature environments.

Key performance benefits include:

🔸 Improved oxidation resistance
🔸 Reliable strength under thermal stress
🔸 Stable performance in heat exchange systems
🔸 Suitable for continuous industrial operation

Because of these characteristics, T2 tubes are widely used in boiler and heat exchanger systems.

Major Industrial Applications of ASTM A335 T2 seamless tubes

    ASTM A335 T2 seamless tubes are commonly used in:
  • 🔸Heat Exchangers
  • 🔸Condensers
  • 🔸Power Plants
  • 🔸Petrochemical Plants
  • 🔸Heat Recovery Systems
  • 🔸Mechanical Systems

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Key Advantages of ASTM A335 T2 Seamless Tubes

Cost-effective alloy steel solution Better performance than T1 Reliable heat resistance Suitable for industrial applications Long service life

Looking for a reliable ASTM A335 T2 seamless tube supplier in India?

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Frequently Asked Questions

–ASTM A335 T2 Tubes

What is ASTM A335 T2 tube?
ASTM A335 T2 is an alloy steel seamless tube used for moderate to high temperature applications in boilers and heat exchangers.
What is the UNS number for T2 alloy steel?
The UNS designation for T2 is K11572.
Where are ASTM A335 T2 tubes used?
They are used in boilers, heat exchangers, condensers, and refinery systems.
What is the difference between T1 and T2 tubes?
T2 offers slightly improved strength and oxidation resistance compared to T1, making it suitable for more demanding applications.
Do you supply ASTM A335 T2 seamless tubes in India?
Yes. ASTM A335 T2 seamless tubes are supplied from Mumbai with full certification and inspection support.