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Stainless Steel 316L Bend Fitting Bpe Butt Welded 90 Degree Ep Grade Elbow for UHP Semiconductor and Medical Industrial
Product Description
Model NO.
bend fitting
Connection
Welding
Shape
Elbow
Angle
90 Degree
Material
Stainless Steel 316L
Technics
Forged
Pressure
6000psi
Surface Finish
BA / EP Grade
Ultra-High Purity BPE Butt Weld Bend Fittings
A corrosion-resistant, ultra-high purity tubing solution for special gases in wafer fab systems, bioprocess lines, and critical fluid applications. Products range: 90 degree elbow, 45 degree elbow, tee, reducing tee, reducer, concentric reducer, eccentric reducer.
- Ultra-Clean & Corrosion-Resistant: Designed for semiconductor gas delivery and biopharmaceutical process lines to ensure zero contamination.
- Stringent Material Standards: Made from 316L stainless steel, compliant with ASTM A213/A269, JIS G3459, and ASME BPE specifications.
- Exceptional Surface Finish: Available in BA or EP treatments, with surface roughness Ra ≤ 0.25 μm (EP) to minimize particle adhesion.
- Broad Operational Suitability: Temperature range from -196°C to +450°C, suitable for high-purity vacuum and liquid cooling.
- Quality Certification: ISO 9001:2015 certified with full Material Test Reports (MTR MTC) for traceability.
| Product Name | 90° Long Radius Elbow Weld Fitting |
| Material | Stainless Steel 316L |
| Outer Diameter (OD) | 1/4" to 6" |
| Wall Thickness | 0.89mm ~ 2.11mm |
| Surface Roughness (Ra) | EP ≤ 0.25 μm, BA ≤ 0.8 μm |
| Manufacturing Standards | ASTM BPE, ASME B16.9 |
| Connection Type | Butt Weld |
| Cleaning | UHP Cleaned & Capped |
Semiconductor & Microelectronics
- Wafer fab special gas delivery
- Gas cabinet hook-up systems
- Critical gas process piping
Biopharmaceutical & Medical
- Bioprocess piping systems
- High-purity pharmaceutical fluid transfer
Frequently Asked Questions
What materials are used for these bend fittings?
Our fittings are primarily manufactured from high-grade Stainless Steel 316L to ensure maximum corrosion resistance and purity.
What is the difference between BA and EP surface finishes?
BA (Bright Annealed) provides a smooth finish with Ra ≤ 0.8 μm, while EP (Electropolished) offers a superior ultra-smooth finish with Ra ≤ 0.25 μm, ideal for UHP applications.
Are these fittings compatible with ASME BPE standards?
Yes, our butt weld bend fittings are designed and manufactured to meet or exceed ASME BPE and ASTM standards for high-purity piping.
What industries are these fittings suitable for?
They are widely used in Semiconductor wafer fabs, Biopharmaceutical process lines, OLED display manufacturing, and high-purity gas delivery systems.
How are the products cleaned and packaged?
All products undergo UHP (Ultra-High Purity) cleaning processes and are capped and double-bagged in a cleanroom environment to maintain integrity.
Can I request a Material Test Report (MTR)?
Yes, full traceability is provided with every shipment, including Material Test Reports (MTC) to verify chemical composition and standards compliance.
