Why Choose Aluminum Alloy Gas Cylinders for Helium?
Helium, an indispensable and high-value inert gas, plays a critical role in semiconductor manufacturing, medical imaging (MRI), scientific research experiments, and high-end analytical instruments. These applications demand the utmost purity of helium, where even minor contamination can lead to severe consequences. NETC, a leading manufacturer of high-end aluminum alloy gas cylinders, offers the ideal solution for helium storage and transportation.
Superior Cleanliness and Internal Wall Treatment of NETC Aluminum Alloy Gas Cylinders
The assurance of helium purity begins with the cleanliness of the cylinder's internal environment. NETC employs advanced manufacturing and internal wall treatment technologies to ensure its aluminum alloy helium cylinders possess the following characteristics:
Extremely Low Internal Wall Particulate Levels: Through strict control of raw material quality and the manufacturing environment, along with specialized cleaning processes, the internal wall particulate matter in NETC aluminum alloy gas cylinders is effectively controlled. This significantly reduces the risk of gas contamination from metal particles shed from the cylinder wall.
Excellent Internal Surface Smoothness: NETC aluminum alloy gas cylinders undergo precision machining and surface treatment, resulting in very low internal wall roughness. This smooth surface not only reduces the specific surface area for gas adsorption, facilitating complete gas recovery, but also fundamentally minimizes hiding places for moisture and residual impurities. This provides a solid foundation for maintaining the initial purity of helium.
Reliable Physical Properties and Structural Integrity of NETC Aluminum Alloy Gas Cylinders
The inherent properties of the aluminum alloy material provide natural advantages for the high-pressure storage of helium:
No Risk of Intergranular Corrosion: Unlike some steels, aluminum alloy does not undergo intergranular corrosion when in contact with high-purity gases. This completely eliminates contamination from metal oxides caused by such corrosion, a characteristic crucial for guaranteeing the quality of ultra-pure gases.
Excellent Strength-to-Weight Ratio and Pressure Resistance: Helium often needs to be stored at high pressures, up to 150 Bar to 200 Bar or even higher, to enhance transportation efficiency. NETC aluminum alloy gas cylinders, made from high-quality aluminum alloy and designed to strict standards, possess exceptional pressure resistance and fatigue performance. They can safely withstand repeated filling and working pressures, ensuring safety throughout their service life.
Inherent Corrosion Resistance: A dense oxide passivation layer naturally forms on the internal surface of aluminum alloy gas cylinders. This layer effectively resists corrosion from various media, ensuring the stability of the internal wall over long-term use and preventing the introduction of metal ions and other impurities into the helium.

NETC Aluminum Alloy Gas Cylinders: Tailored Solutions for High-Value Gases
NETC's aluminum alloy gas cylinders, specially designed for helium and other high-purity and specialty gases, are manufactured in strict compliance with international standards such as ISO 7866 and can meet specific customer requirements for certifications like DOT 3AL and CE ISO 7866. We deeply understand that for helium, an aluminum alloy gas cylinder is not just a storage vessel but a critical component of the purity assurance system.
"In cutting-edge fields like semiconductors and healthcare, gas purity directly impacts the success of the final product and patient safety," stated a NETC technical representative. "Every aspect of our aluminum alloy helium cylinders, from material selection to internal wall treatment, is designed and controlled with the goal of 'zero contamination.' We provide not just a cylinder, but a pure, stable, and reliable storage environment."
About NETC:
NETC is a global, specialized manufacturer of aluminum alloy gas cylinders, with a product line deeply covering medical, industrial, electronic specialty gases, beverage, and fire protection sectors. Through continuous investment in materials science, production processes, and quality control, NETC has become a reliable partner for many leading global gas companies in providing storage and transportation solutions for high-purity and specialty gases.
