ASTM A312 TP316/316L Stainless Steel Pipe
ASTM A312 TP316/316L stainless steel pipes are widely used in industries requiring high corrosion resistance, durability, and strength. These pipes are made from molybdenum-bearing austenitic stainless steel, which enhances their resistance to pitting and crevice corrosion, particularly in chloride-rich environments. Riyaarth Overseas supplies high-quality ASTM A312 TP316/316L pipes that offer excellent performance in chemical processing, marine applications, food processing, and pharmaceutical industries.
Key Features of ASTM A312 TP316/316L Stainless Steel Pipe
Superior Corrosion Resistance:
ASTM A312 TP316/316L pipes offer enhanced resistance to pitting and crevice corrosion, especially in chloride environments. Their superior performance makes them ideal for marine, chemical, and pharmaceutical applications where corrosion resistance is critical.
High Temperature Strength:
These pipes maintain excellent mechanical properties even at elevated temperatures, making them suitable for high-temperature applications such as heat exchangers, boilers, and power generation plants.
Low Carbon Variant (316L):
The 316L grade has lower carbon content, reducing carbide precipitation during welding and enhancing corrosion resistance in welded structures. This makes it ideal for applications requiring high weldability and cleanliness.
Excellent Mechanical Properties:
With a tensile strength of 70,000 psi and yield strength of 25,000 psi, ASTM A312 TP316/316L pipes provide superior durability, impact resistance, and stress tolerance in demanding conditions.
Hygienic and Non-Reactive Surface:
These pipes are widely used in the food, beverage, and pharmaceutical industries due to their smooth, non-reactive surface, which prevents contamination and ensures product purity.
Chemical Composition
Element | Composition (%) |
Carbon (C) | 0.08 max (316), 0.03 max (316L) |
Manganese (Mn) | 2.00 max |
Phosphorus (P) | 0.045 max |
Sulfur (S) | 0.030 max |
Silicon (Si) | 1.00 max |
Chromium (Cr) | 16.0-18.0 |
Nickel (Ni) | 10.0-14.0 |
Molybdenum (Mo) | 2.0-3.0 |
Mechanical Properties
Property | Value |
Tensile Strength | 70,000 psi (485 MPa) min |
Yield Strength | 25,000 psi (170 MPa) min |
Elongation | 40% min |
Manufacturing Process
ASTM A312 TP316/316L pipes are manufactured using advanced techniques to ensure superior quality and precision. The process includes:
- Billet Selection: High-quality raw material is chosen for consistency and durability.
- Hot Extrusion/Cold Drawing: Pipes are formed through extrusion or cold drawing for precise dimensions.
- Solution Annealing: Heat treatment is applied to enhance mechanical properties and corrosion resistance.
- Pickling and Passivation: Surface treatment is performed to improve the finish and remove impurities.
- Testing and Inspection: Pipes undergo rigorous quality checks to ensure compliance with ASTM standards.
Common Applications
Chemical and Petrochemical Industry:
ASTM A312 TP316/316L pipes are widely used in chemical and petrochemical processing plants due to their resistance to aggressive chemicals and high temperatures. Their molybdenum content enhances their ability to withstand corrosive substances such as acids and solvents.
Marine and Offshore Applications:
These stainless steel pipes are ideal for marine environments, where exposure to saltwater can lead to corrosion. Their high resistance to chloride-induced stress corrosion cracking makes them an excellent choice for shipbuilding, desalination plants, and offshore oil rigs.
Food and Beverage Industry:
The non-reactive and hygienic properties of ASTM A312 TP316/316L pipes make them essential for food processing plants, breweries, and dairy industries. They ensure contamination-free transportation of liquids and gases while meeting stringent industry hygiene standards.
Pharmaceutical and Biotech Industries:
With superior cleanliness and non-contaminating properties, these pipes are widely used in pharmaceutical and biotech applications. They are suitable for transporting high-purity liquids and gases required in the production of medicines and vaccines.
Heat Exchangers and Boilers:
ASTM A312 TP316/316L pipes are commonly used in heat exchangers, boilers, and condensers due to their high-temperature strength and excellent thermal conductivity. Their resistance to thermal expansion makes them reliable in extreme heat conditions.
Available Sizes and Dimensions
Pipe Size (NPS) | Wall Thickness (Sch 40) | Wall Thickness (Sch 80) |
1/2″ | 0.109″ | 0.147″ |
3/4″ | 0.113″ | 0.154″ |
1″ | 0.133″ | 0.179″ |
2″ | 0.154″ | 0.218″ |
4″ | 0.237″ | 0.337″ |
Testing and Quality Standards
To ensure superior performance and compliance, ASTM A312 TP316/316L pipes undergo rigorous testing, including:
- Hydrostatic Testing – Verifies pressure handling capabilities.
- Non-Destructive Testing (NDT) – Includes ultrasonic and radiographic tests for flaw detection.
- Chemical Analysis – Ensures material composition meets ASTM standards.
- Mechanical Testing – Checks tensile strength, hardness, and impact resistance.
Surface Finish and Coatings
To enhance durability and corrosion resistance, the pipes are available with various surface treatments, including:
- Pickled and Passivated Finish – Ensures a clean, smooth surface free from contaminants.
- Polished Finish (180 to 600 grit) – Provides enhanced aesthetics and cleanliness for food and pharma applications.
- Electropolishing – Improves corrosion resistance and surface smoothness.
Quality Assurance & Packaging
Riyaarth Overseas ensures the highest quality standards for ASTM A312 TP316/316L stainless steel pipes, delivering reliable and high-performance solutions for critical industries.
Certifications & Standards:
- Compliant with ASTM, ASME, ISO, and API standards.
- Meets international quality and safety regulations.
Packaging:
- Securely packed to prevent damage during transit.
- Each pipe is labeled and wrapped with protective materials for safe delivery and easy identification.
Get in touch with Riyaarth Overseas for top-quality stainless steel piping solutions tailored to your industrial requirements. Contact us today for a competitive quote!
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- Oil & Gas industries
- Chemical process industries
- Pump and valve in high pressure component
- Food industries
- Pulp and paper industry
- Aerospace industry
- Power plant
- Mechanical component
- Sugar industry
- Cement industry