LNG Cryogenic High-Pressure Aluminum Finned Pipe

The low-temperature, high-pressure aluminum finned pipe for LNG is a specialized heat exchange equipment used in the liquefaction, storage, and transportation of LNG under low-temperature and high-pressure environments. It features high heat exchange efficiency and lightweight design.

Our company specializes in the production of low-temperature, high-pressure finned pipe for LNG, made from high-strength, corrosion-resistant aluminum alloys such as 5052, 6061, and 6063.

These pipe can operate stably in extreme conditions, withstanding ultra-low temperatures of -196°C and high pressures of up to 20 MPa, ensuring no leakage or deformation.

We can customize large-diameter, extra-long finned pipe according to customer requirements.

Specifications of LNG aluminum finned pipe

Standards: ASTM B210, ASTM E2110, EN 1252-2, AWS D1.2/D1.2M, EN 755, EN 573, NACE MR0175, ASTM G93

Certifications: PED Pressure Certification, CRN Pressure Certification, ASME U-Stamp, DNV-GL, ABS Certification

Popular LNG aluminum finned pipe products

Low Fin Pipe

• Alloys: 3003, 5052
• Temper: H14, H18, H32
• Operating Temperature Range: -196°C to 120°C
• Maximum Working Pressure: Up to 10 MPa (depending on wall thickness)
• OD: 1/4" - 1 1/2" (6.35mm - 38.1mm)
• Fin Height: 0.015" - 0.05" (0.38mm - 1.27mm)
• Fin Thickness: 0.3mm to 0.5mm
• Pipe Length: Extra-long pipe can be customized according to customer requirements
• Selection Recommendation: Choose low fin pipe when high thermal conductivity is required.

Longitudinal Finned Pipe

• Alloys: 6061, 6063
• Temper: T6
• Operating Temperature Range: -196°C to 150°C
• Maximum Working Pressure: Up to 25 MPa (depending on design and wall thickness)
• OD: 1" - 4" (25.4mm - 101.6mm)
• Fin Height: 0.5" - 1.5" (12.7mm - 38.1mm)
• Number of Fins: 4 - 12
• Pipe Length: Extra-long pipe can be customized according to customer requirements
• Selection Recommendation: With excellent low-temperature toughness, they are particularly suitable for high-pressure applications and when large-area heat exchange is required.

Fin Pipe Coil

• Alloys: 3003, 5052
• Coil Dimensions: Customizable based on application requirements
• Operating Temperature Range: -196°C to 120°C
• Maximum Working Pressure: Typically not exceeding 5 MPa
• Selection Recommendation: Consider this option when space is limited, as it is suitable for flexible installation scenarios.

LNG aluminum finned pipe: heat exchange solutions for low-temperature environments

Mastar's LNG low-temperature, high-pressure aluminum finned pipe are specially designed for extreme low-temperature environments.

They offer excellent low-temperature toughness, strength, and corrosion resistance, and can withstand severe temperature fluctuations, making them an ideal choice for heat exchange in LNG equipment.Quick Quote

• Low-Temperature Brittleness: At the LNG liquefaction temperature of -196°C, alloys 3003, 5052, and 6061 do not exhibit brittleness.
• Low-Temperature Strength: As the temperature decreases, the strength and hardness of aluminum alloys generally increase while maintaining good toughness.
• Stress Corrosion Cracking (SCC): Alloys 5052, 6061, and 6063 exhibit particularly good resistance to SCC at low temperatures.
• Severe Temperature Fluctuations: Temperature differences between the fins and the base pipe may cause localized stress concentrations.
• Welding Recommendations: In low-temperature environments, TIG welding is typically preferred to maintain good low-temperature toughness.
• Surface Treatment: Some coatings may crack or peel at extremely low temperatures.

LNG finned pipe: a reliable choice for high-pressure applications

We can provide you with a quality inspection report for our LNG aluminum finned pipe, which details the product's performance metrics, such as tensile strength, yield strength, hardness, and more, all of which exceed industry standards.

• The pressure-bearing capacity of aluminum finned pipe primarily depends on the material, wall thickness, and diameter of the base pipe.
• Within the design pressure range, deformation should remain within the elastic range. Exceeding the yield strength may lead to permanent deformation.
• The fins themselves do not bear pressure, but they may influence the stress distribution in the pipe.
• At low temperatures, the fatigue strength of aluminum alloys typically increases. However, high-pressure cycles can lead to fatigue issues.
• Aluminum finned pipe typically undergo hydrostatic testing at 1.5 times the design pressure, and pneumatic testing is also performed based on customer applications.

Aluminum finned pipe: the preferred choice for marine environments

Aluminum finned pipe offer excellent corrosion resistance, particularly in corrosive environments involving natural gas and seawater, ensuring long lifespan and reliability of the finned pipe.

• 6061 and 6063 aluminum finned pipe have natural corrosion resistance and perform exceptionally well in seawater and marine atmospheric environments.
• Surface treatment processes such as anodizing can further enhance the corrosion resistance of aluminum finned pipe, extending their service life.
• The electrochemical corrosion risk of aluminum alloys is low, making them suitable for use in LNG offshore platforms.
• Aluminum finned pipe are lightweight, which can effectively reduce the overall weight of LNG platforms in marine engineering, improving the economic efficiency of the equipment.

LNG aluminum finned pipe chemical elements (Spec: BS EN 573-3:2009)

Our products are manufactured in strict accordance with the BS EN 573-3:2009 standard, and we can provide detailed material composition analysis reports.Quick Quote

Reliable quality

• Our products meet industry and safety standards, ensuring the quality and safety of your equipment.
• In all our finned pipe manufacturing, we ensure dimensional accuracy and welding quality in compliance with specifications.
• Finished products are tested according to customer requirements, typically including PMI, X-ray, dye penetration inspection, or hydrostatic pressure testing.
• In LNG environments, aluminum finned pipe demonstrate excellent durability, capable of stable operation under low-temperature and high-pressure conditions for extended periods.
• Advanced manufacturing processes reduce carbon emissions during the production of aluminum finned pipe.

You've definitely heard of these companies

We are highly regarded in the industry for our extensive experience in supplying aluminum pipe for natural gas liquefaction, becoming the preferred solution for numerous projects.

Our LNG aluminum finned pipe have been successfully applied in projects by global energy giants such as ExxonMobil and Shell.

These partners have extremely high demands for product quality and performance, and our products have earned their recognition for outstanding heat exchange efficiency, corrosion resistance, and customized services.