Ultra-High Purity Tube Systems
For Semiconductor, Solar, Energy & Display. Ra ≤ 0.25 µm EP, particle-count validated, Cr/Fe oxide controlled. AMS 2700 · SEMI F20 compliant for cleanroom environments.
BEYOND THE LIMITS OF PURITY
High-purity gas delivery and advanced process media distribution.
Global Leader in High-Purity Tubes
Rensa is a global leader in high-quality stainless steel tubes and fittings, trusted by industries where precision and reliability are non-negotiable. With two decades of expertise serving pharmaceutical, bio-pharmaceutical, food, beverage, and other high-purity sectors, Rensa has built a reputation for engineering excellence, rigorous quality control, and dependable global supply.
Rensa Max is our dedicated brand for the semiconductor and high-tech industries, delivering ultra-high-purity stainless steel tubing and fittings engineered for UHP gases, pure media, and advanced process systems. Manufactured in controlled environments and finished to surface roughness values as low as Ra < 0.25 µm, Rensa Max products meet or exceed ASME BPE, SEMI, and ASTM standards. Rensa Max combines cutting-edge technology, uncompromising cleanliness, and global reach to serve industries where purity is mission-critical.
BEYOND THE LIMITS OF PURITY
Applications
UHP Water Distribution Systems
Ultra-clean tubing for 18+ MΩ-cm water loops used in wafer rinsing, clearing, and fabrication.
Clean Gas Delivery Lines
High-purity piping for process gases like nitrogen, argon, hydrogen, oxygen, and specialty gases used in deposition, etching, and cleaning processes.
Chemical Delivery Systems
Safe and contamination-free transport of high-purity acids, solvents, and slurry mixtures for photolithography and CMP (Chemical Mechanical Planarization).
Slurry & CMP Lines
Smooth, Electropolished interiors to maintain slurry consistency and prevent particle build-up during wafer polishing.
Data Center Cooling & High-Tech Facilities
Precision tubing for pure media transport in advanced electronics, display manufacturing, and cleanroom environments.
Rensa Max Highlights
- Ultra-Clean Finishes – Electropolished to Ra < 0.25 µm (EP) or Ra < 0.51 µm (MP), with better finishes available on request.
- Global Standards Compliance – Manufactured to ASME BPE, SEMI F19, and ASTM specifications for full international compatibility.
- Cleanroom Manufacturing & Packaging – Controlled environment production and double-bagged, nitrogen-purged packaging to preserve cleanliness.
- 100% Traceability – Heat number marking and MTR access through our secure online system.
- Orbital Weld Ready – Precision dimensions and consistent surface finish for flawless, repeatable welds.
Complete Process Control
From raw materials to finished products, our integrated process ensures quality, consistency, and complete traceability.
Quality, Consistency, Delivered
Rahul Ferromet & Engineering Pvt Ltd manufactures Hygienic & Ultra high Purity Stainless steel Tubes under brand name of rensa having its manufacturing facility at Jhagadia, Bharuch, Gujarat, India.
With over 17 years of manufacturing experience, the 20,000m² integrated manufacturing facility with over 100 committed and dedicated team of employees has a capacity to produce 100,000 mtrs / month of high quality stainless steel tubes with complete traceability and documentation.
Products & Dimensions
Tubes and Fittings
- Size: 1/8" x 0.022" to 6" x 0.109"
- According to ASTM A269 / A270 / A632
Pipe
- NPS 8, 10, 12 Schedule 10S
- According to ASTM A312
Grade (MOC)
- 1.4404 CS (Low Sulfur)
- UNS S31603 (316L)
- N06022 (C-22 Alloy)
Surface Finish
- Ra < 0.25 µm (EP)
- Ra < 0.51 µm (MP)
- Ra < 0.64 µm
- Special Finishes on Request
ASME BPE vs Rensa Max
| Attribute | ASME BPE Rec. | Rensa Electropolishing |
|---|---|---|
| EP Layer Thickness | 15 Å minimum | 39 Å |
| Cr/Fe Ratio | Greater Than 1 | 4.5 |
Passivation Chemistry Analysis
Cr/Fe Ratio: 4.5 (much higher than the ASME BPE requirement). This delivers a much stronger passivation layer and enhanced corrosion resistance.
Oxide Layer: 39 Å (more than 2.5 times the ASME minimum).
Cr-Enriched Layer: 31 Å. While ASME BPE focuses on total oxide depth, Rensa's additional chromium enrichment enhances protection, creating an extra coating that ensures long-term resistance to harsh chemical conditions.
CrOx/FeOx Ratio: 3.2. The better this ratio, the stronger the anti-corrosion properties, making the material highly reliable for critical pharmaceutical and UHP applications.
Product Range
rensa Max Fittings Range
Butt-Weld Fittings
- Elbows 90° / 45°
- Equal & reducing tees
- Concentric reducers
- End caps
Face-Seal Fittings
- VCR® compatible bodies
- VCO® compatible bodies
- Hex nipples & unions
- Plug & cap fittings
Gas-Panel Components
- Straight connectors
- Tee & cross bodies
- High-flow elbows
- Purge / vent ports
Custom Fabrication
- Manifold assemblies
- Custom OD / WT
- Cleanroom-assembled sub-assemblies
- Nitrogen-purged packaging
Request a UHP qualification package
We supply full UHP data packs — Ra, Cr/Fe, particle count records and samples — aligned to your process spec and fab qualification requirements.