ASTM A249 TP304 Tube (Pipe) Supplier and Exporter in India

ASTM A249 TP304 Tube is a welded austenitic stainless steel tube designed for use in boilers, superheaters, heat exchangers, and condensers. It contains approximately 18–20% chromium and 8–11% nickel, providing excellent corrosion resistance and reliable mechanical strength.

Manufactured under ASTM A249 specifications, TP304 tubes are supplied in the welded and heat-treated condition to meet metallurgical and mechanical property requirements. Although commonly referred to as “pipe” in trade terminology, ASTM A249 technically covers welded stainless steel tubes.

Key Features of ASTM A249 TP304

  • Optimized Chemical Composition
    Contains 18–20% chromium and 8–11% nickel, delivering strong corrosion resistance in oxidizing and mildly corrosive environments.
  • Good Weldability
    Offers excellent fabrication characteristics and can be welded efficiently without requiring post-weld heat treatment in most applications.
  • High Temperature Performance
    Maintains structural integrity and oxidation resistance in elevated temperature environments such as boilers and heat exchangers.
  • Reliable Mechanical Strength
    Designed to perform under moderate pressure and temperature service conditions.
  • Standard Compliance
    Manufactured in accordance with ASTM A249 requirements for welded austenitic stainless steel boiler and heat exchanger tubes.

Chemical Composition

  • Carbon (C): ≤ 0.08%
  • Manganese (Mn): ≤ 2.00%
  • Phosphorus (P): ≤ 0.045%
  • Sulfur (S): ≤ 0.030%
  • Silicon (Si): ≤ 1.00%
  • Chromium (Cr): 18.0 – 20.0%
  • Nickel (Ni): 8.0 – 11.0%
  • Iron (Fe): Balance

Mechanical Properties (Annealed Condition – Minimum)

  • Tensile Strength: ≥ 515 MPa
  • Yield Strength (0.2% Proof): ≥ 205 MPa
  • Elongation: ≥ 35%

Applications of ASTM A249 TP304 Tube

  • Heat Exchangers & Condensers
    Ensures efficient heat transfer and corrosion resistance in thermal processing systems.
  • Boilers & Superheaters
    Suitable for elevated temperature and pressure steam applications.
  • Chemical Processing Industry
    Handles mildly corrosive process fluids and industrial chemicals.
  • Food & Beverage Industry
    Resists food acids and cleaning agents while maintaining hygiene standards.
  • Pharmaceutical Industry
    Used in sanitary systems requiring corrosion resistance and fabrication integrity.

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Faq's

A: These pipes are primarily used in boiler, superheater, heat exchanger, and condenser systems due to their high-temperature strength.

A: Yes, Yash Impex exports ASTM A249 TP304 seamless pipes to India, Mexico, Russia, Brazil, Argentina, Ecuador, and globally.

A: Yes, they are highly resistant to oxidation and corrosion, making them ideal for industrial use.

A: Yes, pipes are manufactured and supplied in different diameters and wall thicknesses to suit diverse applications.
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