ASTM A213 TP316L Tube (Pipe) Supplier & Exporter in India

ASTM A213 TP316L Tube is a low-carbon austenitic stainless steel seamless tube designed for high-temperature and high-pressure service. It is the low-carbon version of TP316 stainless steel and contains molybdenum, which enhances resistance to pitting and crevice corrosion, especially in chloride-rich environments.

With a maximum carbon content of 0.035%, TP316L offers improved weldability and superior resistance to intergranular corrosion compared to standard TP316. Manufactured under ASTM A213 / ASME SA213 specifications, TP316L tubes are widely used in boilers, heat exchangers, condensers, and process piping systems. Although commonly referred to as “pipe” in trade terminology, ASTM A213 technically covers seamless stainless steel tubes.

Difference Between TP316 and TP316L

• TP316 Carbon Content: Maximum 0.08%
• TP316L Carbon Content: Maximum 0.035%

The lower carbon content in TP316L minimizes chromium carbide precipitation during welding, reducing the risk of sensitization and intergranular corrosion in welded structures.

Key Features of ASTM A213 TP316L

• Optimized Chemical Composition
  Contains 16–18% chromium, 10–14% nickel, 2–3% molybdenum, and low carbon (≤ 0.035%) for enhanced corrosion resistance and weld performance.
• Excellent Weldability
  Can be welded without post-weld heat treatment in most applications, making it ideal for fabrication-intensive projects.
• Superior Corrosion Resistance
  Offers strong resistance to chlorides, seawater exposure, industrial chemicals, and acidic environments.
• Reliable Mechanical Strength
  Designed to withstand pressure and elevated temperature conditions in demanding industrial environments.
• High Temperature Performance
  Maintains oxidation resistance and structural stability in boilers and heat exchanger systems.

Chemical Composition

• Carbon (C): ≤ 0.035%
• Manganese (Mn): ≤ 2.00%
• Phosphorus (P): ≤ 0.045%
• Sulfur (S): ≤ 0.030%
• Silicon (Si): ≤ 1.00%
• Chromium (Cr): 16.0 – 18.0%
• Nickel (Ni): 10.0 – 14.0%
• Molybdenum (Mo): 2.0 – 3.0%
• Iron (Fe): Balance

Mechanical Properties (Annealed Condition – Minimum)

• Tensile Strength: ≥ 485 MPa
• Yield Strength (0.2% Proof): ≥ 170 MPa
• Elongation: ≥ 35%

Applications of ASTM A213 TP316L Tube

• Marine & Offshore Industry
  Suitable for seawater handling systems and coastal installations due to enhanced chloride resistance.
• Chemical Processing Plants
  Used in heat exchangers, reactors, and piping systems handling aggressive chemicals.
• Pharmaceutical Industry
  Ideal for hygienic systems requiring corrosion resistance and strong weld integrity.
• Food & Beverage Industry
  Resists corrosion from food acids and cleaning chemicals while maintaining sanitary standards.
• Power Generation
  Commonly used in boiler tubes and superheater applications requiring durability at elevated temperatures.

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