316L VAR Stainless Steel | Electropolished (EP) & BA Finish | Semiconductor & High Purity Gas Systems
Beyond Fluid manufactures precision-engineered UHP tube weld fittings for semiconductor, pharmaceutical, and high-purity gas distribution systems. Our products are fully compatible with orbital welding systems and meet stringent industry cleanliness requirements.
Ultra High Purity (UHP) weld fittings are precision components used in semiconductor, pharmaceutical, and high-purity gas systems where contamination control directly affects process yield and system reliability.
They are manufactured using ASTM 316L or 316L VAR stainless steel to achieve higher material purity and reduced inclusion levels compared to standard industrial grades.
These fittings are specifically designed for orbital welding systems, ensuring consistent weld quality, minimal human error, and leak-tight performance in ultra-clean environments.
In semiconductor and high-purity applications, surface condition and material purity are critical factors that determine system stability and contamination risk.
| Material | 316L / 316L VAR (Semiconductor Grade) |
|---|---|
| Surface Finish | BA / EP (Electropolished Ra ≤ 0.25 μm) |
| Welding Type | Orbital Welding Compatible |
| Standards | ASTM A269 / A479, SEMI F20, ISO 9001 |
| Performance | Ultra-low particle generation, high corrosion resistance |
| Leak Integrity | Helium leak tested for high-purity systems |
| Traceability | Full MTR + heat number tracking |
| Cleanliness | Cleanroom compatible packaging and handling |
Ultra high purity weld reducing union used to connect different tube sizes in semiconductor and high-purity gas systems with stable flow and leak-free performance.
Connection: Weld | Size: 1/8" – 1/2" | Material: SS304 / SS316L / 316L VAR
Ultra high purity 90 degree weld elbow fittings are designed for orbital welding systems to enable directional flow change in ultra-clean gas, vacuum, and liquid applications.
Connection: Weld | Size: 1/8" – 1/2" | Material: SS304 / SS316L / 316L VAR
Ultra clean 3 way weld tee union used for flow branching in semiconductor and high-purity gas distribution systems requiring stable and contamination-free performance.
Connection: Weld-to-weld | Size: 1/8" – 1/2" | Material: SS304 / SS316L / 316L VAR
Compact ultra high purity reducing union designed for micro-scale semiconductor systems requiring precise tube size transition and clean flow control.
Connection: Weld | Size: 1/8" – 1/2" | Material: SS304 / SS316L / 316L VAR
Compact 90 degree micro weld elbow designed for tight-space orbital welding applications in ultra-clean semiconductor and instrumentation systems.
Connection: Weld | Size: 1/8" – 1/2" | Material: SS304 / SS316L / 316L VAR
High purity micro weld tee union used for compact flow distribution in semiconductor and laboratory-grade high-purity gas systems.
Connection: Weld | Size: 1/8" – 1" | Material: SS304 / SS316L / 316L VAR
Ultra High Purity (UHP) weld fittings are engineered for semiconductor and high-purity gas systems requiring strict control of contamination, pressure stability, and material integrity.
| Material | 304 / 316L / 316L VAR (Vacuum Arc Remelted) |
|---|---|
| Size Range | 1/8″ – 1″ |
| Connection | Weld / Micro Weld |
| Surface Finish | BA / EP (Ra ≤ 0.25 μm) |
| Pressure Rating | Up to 5,000 PSI working pressure |
| Burst Pressure | Up to 10,000 PSI |
| Temperature Range | -196°C to 538°C |
Surface finish directly impacts particle generation and cleanliness in UHP systems.
| Item | BA | EP |
|---|---|---|
| Process | Heat treated | Electropolished |
| Ra | 0.4–0.8 μm | ≤0.25 μm |
| Cleanliness | High purity | Ultra high purity |
| Particles | Low | Ultra-low |
| Use | General UHP | Semiconductor |
Material purity determines contamination risk and system stability in high purity applications.
| Item | 316L | 316L VAR |
|---|---|---|
| Process | Standard melt | Vacuum arc remelted |
| Inclusions | Standard | Ultra-low |
| Purity | High | Ultra high |
| Stability | General use | Critical systems |
| Use | UHP systems | Semiconductor |
Cleanroom assembly prevents contamination in UHP components.
| Standard | UHP Process |
|---|---|
| Workshop | Cleanroom |
| Basic cleaning | Ultrasonic cleaning |
| Standard packaging | Cleanroom sealing |
Beyond Fluid has over 15 years of experience supplying stainless steel weld fittings to wholesalers, distributors, and large contractors. We offer reliable quality, excellent service, on-time delivery, and competitive prices. Our commitment to advanced technology, precision engineering, and strict quality standards ensures we meet the diverse needs of customers worldwide.
We take pride in producing high-quality high clean weld fittings. Our comprehensive range of products is designed for optimal performance and durability, with both standard and customized solutions. Serving industries from from semiconductors, biotechnology to aerospace, we aim to be your long-term trusted partner to expand your market presence.
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