ASTM A333/ASME SA333 Gr.6 Alloy Seamless Steel Tubes/Pipes: High-Performance Tubing for Chilled Applications
1. Product Description: ASTM A333/ASME SA333 Gr.6 Alloy Seamless Steel Tubes/Pipes are designed for applications requiring service at low temperatures. These tubes and pipes are manufactured from alloy steel that is seamless, ensuring uniform wall thickness and exceptional structural integrity. The Grade 6 specification denotes a particular level of mechanical properties suitable for cryogenic and freezing environments.
2. Product Parameters:
Parameter | Description |
Grade | ASTM A333/ASME SA333 Gr.6 |
Material | Alloy Steel (Seamless) |
Standard | ASTM A333, ASME SA333 |
Size Range | Various diameters and wall thicknesses as per ASTM/ASME standards |
Length | Standard lengths, customizable upon request |
Ends | Plain ends, beveled ends, threaded, or socket-weld ends |
Surface Treatment | As-rolled, annealed, or normalized |
3. Mechanical Properties:
Property | Typical Requirements |
Tensile Strength | ≥415 MPa (60,000 psi) |
Yield Strength | ≥240 MPa (35,000 psi) |
Elongation | ≥20% in 50 mm (2 in) or 4D, whichever is greater |
Hardness | Varies depending on heat treatment |
4. Chemical Composition:
Element | Typical Range (%) |
Carbon | 0.27 - 0.35 |
Manganese | 0.35 - 0.60 |
Phosphorus | ≤ 0.025 |
Sulfur | ≤ 0.025 |
Silicon | ≤ 0.35 |
5. Product Applications:
- Cryogenic Piping: Used for transporting liquefied gases and other cryogenic substances.
- Refrigeration Systems: Ideal for systems that require low temperature operation.
- Chemical Processing: Suitable for handling chemicals that require low-temperature storage and transport.
- Oil and Gas Industry: Employed in pipelines and equipment for oil and natural gas exploration in cold regions.
- Power Generation: Utilized in power plants for steam lines and other systems operating under low temperatures.
6. Product Advantages:
- Seamless Construction: Provides a consistent material structure and eliminates potential seam-related failures.
- Low-Temperature Service: Alloy steel composition ensures reliable performance in cryogenic conditions.
- Pressure Resistance: Designed to withstand high internal pressures, essential for power generation and petrochemical applications.
- Corrosion Resistance: Offers resistance to various environmental conditions common in low-temperature applications.
- Long Service Life: Built to last with minimal maintenance in demanding environments.


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