Stainless Steel Ultra-pure Clean BA/EP Tubes
Stainless Steel Ultra-Pure Clean BA/EP Tubes for Semiconductor Applications
In the high-tech world of semiconductor manufacturing, purity is everything. From the wafers to the equipment, every component must meet stringent cleanliness standards to ensure flawless performance. Among the most critical components are ultra-pure stainless steel tubes, especially those with BA (Bright Annealed) and EP (Electropolished) finishes. These tubes are widely used for gas and liquid delivery systems in semiconductor fabrication equipment, ensuring the transported media remains uncontaminated throughout the process.
Why Ultra-Pure Stainless Steel Tubes Matter
Ultra-pure stainless steel tubing is engineered to deliver exceptional cleanliness, surface smoothness, and corrosion resistance. This makes it ideal for highly controlled environments, such as those found in the semiconductor and electronics industries. To meet such high demands, manufacturers must adopt advanced melting techniques to refine the steel to the highest purity levels.
Specialized Melting Techniques for Ultra-Clean Tubes
The production of ultra-pure stainless steel tubes involves several advanced remelting processes, each contributing to improved purity, reduced inclusions, and uniformity:
Vacuum Induction Melting (VIM)
VIM significantly reduces the levels of gases such as oxygen, nitrogen, and hydrogen in the metal. It also helps to eliminate some non-metallic inclusions.Vacuum Arc Remelting (VAR)
This secondary melting process further enhances metal cleanliness, minimizes inclusions, and ensures homogeneous composition throughout the ingot.Electro-Slag Remelting (ESR)
ESR is particularly effective in removing non-metallic inclusions, thereby improving the purity and structural quality of the steel.
Key Product Features
Our BA/EP stainless steel ultra-pure clean tubes are specifically designed for demanding industries like semiconductors. Here’s what makes them stand out:
Extremely Low ABCD Inclusion Content
These tubes maintain the highest level of metallic purity, reducing the risk of contamination.Very Low N, H, O Element Content
The controlled levels of nitrogen, hydrogen, and oxygen ensure superior corrosion resistance and cleanliness.
Common Grades and Specifications
Material Grades: 316L (VIM + VAR)
Specially melted to meet semiconductor-grade purity standards.Standards: ASTM A269, JIS G3459
Internationally recognized standards for welded and seamless stainless steel tubing.Size Range:
Outer Diameter: 3.175 mm to 325 mm
Wall Thickness: 0.5 mm to 20 mm
Applications in Semiconductor Industry
These ultra-clean tubes are crucial in:
High-purity gas delivery systems
Chemical distribution lines
Ultra-clean water systems
Vacuum and process piping
They ensure zero contamination, stable flow, and long-term durability—essential qualities for reliable semiconductor manufacturing.
Conclusion
DLSS is proud to offer ultra-pure stainless steel tubing solutions that meet the most rigorous demands of the semiconductor industry. With state-of-the-art production and quality control systems, we deliver precision and reliability with every tube.
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