ASTM A312 TP316L stainless steel pipe is a low-carbon austenitic stainless steel pipe engineered for
high-temperature service and highly corrosive industrial environments. Manufactured under ASTM A312/ASME SA312
standards, TP316L pipes provide superior resistance to intergranular corrosion due to their reduced carbon
content, making them ideal for welded fabrication and long-term service in aggressive conditions.
The addition of molybdenum enhances resistance to pitting and crevice corrosion, especially in
chloride-rich environments. These pipes are widely used in chemical processing, oil & gas, marine,
pharmaceutical, and high-purity fluid systems where durability and reliability are critical.
Key Features of ASTM A312 TP316L Pipe
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Superior Corrosion Resistance
Contains 2.0–3.0% molybdenum for excellent protection against pitting, crevice corrosion, and chemical attack
in harsh industrial environments.
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Low Carbon for Enhanced Weldability
The reduced carbon content minimizes carbide precipitation during welding, improving joint integrity and
reducing the need for post-weld heat treatment.
-
Strong Mechanical Performance
Minimum tensile strength of 485 MPa and yield strength of 170 MPa ensure durability under pressure and
demanding operating conditions.
-
Excellent High-Temperature Stability
Maintains structural strength and corrosion resistance in elevated temperature applications.
-
Fabrication Versatility
Easy to bend, weld, and form using conventional fabrication methods without compromising performance.
Specifications
Chemical Composition
- Carbon (C): ≤ 0.03%
- 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%
Mechanical Properties (Minimum)
- Tensile Strength: ≥ 485 MPa
- Yield Strength (0.2% proof): ≥ 170 MPa
- Elongation: ≥ 35%
Available Sizes & Standards
- Nominal Pipe Sizes: 1/8″ to 48″ (custom sizes available)
- Wall Thickness: SCH 5 to SCH XXS
- Forms: Seamless, welded, and fabricated
- Standards: ASTM A312/A312M and ASME SA312/SA312M
Applications of ASTM A312 TP316L Pipe
- Chemical processing and handling systems
- Oil & gas and offshore installations
- Pharmaceutical and biotech fluid systems
- Marine and seawater environments
- Food and beverage processing
- Heat exchangers and pressure equipment
Performance Advantages
- Excellent resistance to intergranular corrosion
- Long service life in aggressive environments
- Reliable performance at elevated temperatures
- Reduced maintenance and replacement costs
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