Sakshi Forge manufactures ASTM A270 / ASME BPE electropolished stainless steel tubing in Mumbai and supplies process plants in Al Ain through Khalifa Port and Jebel Ali. Our 316L and 304L EP tube is finished to an internal Ra as low as 0.38 µm (SF4), 100% PMI-tested and shipped with EN 10204 3.1 MTCs. This page explains how we make it, how to specify it for dairy, water, food and pharma lines, and what arrives with every shipment.

Al Ain is the inland food and water centre of the Abu Dhabi emirate. Al Ain Industrial City holds several hundred industrial licences, and most tenants are light manufacturers such as food processors. Around them sit dairy and farm-processing sites, bottled-water and juice plants, date processors, the city's major hospitals and a university research base. Each of these runs stainless process lines — but they don't all need the same tube.
Al Ain Industrial City and Sanaiya · hospital and university sites · farm and dairy sites across the Al Ain region
Khalifa Port, Abu Dhabi · Jebel Ali, Dubai — then by road to Al Ain
Dairy · Bottled water · Hospitals · Research labs · Food
Many dairy, water and food lines don't. 3-A and EHEDG hygienic-design guidance sets product-contact surfaces at Ra 0.8 µm (32 µin) or smoother, and research on food-plant cleaning finds little benefit from going much smoother. A good mechanically polished sanitary tube meets that at lower cost. Electropolishing earns its price in pharmaceutical, hospital and laboratory water systems, where corrosion resistance and a passive, low-particle surface matter. Send us your specification and we'll tell you honestly which one it calls for — even when that means the cheaper tube.
Also supplying: Electropolished Pipes for Abu Dhabi · Dubai · All UAE
Both finishes can be smooth. The difference is how the surface was made: mechanical polishing abrades it, electropolishing dissolves it. That changes the structure and the chemistry of the surface, not just the Ra number.
| Surface Property | Electropolished (EP) Finish | Mechanically Polished (MP) Finish | Why It Matters |
|---|---|---|---|
| Internal Ra (ASME BPE) | SF4 ≤ 0.38 µm (15 µin) · SF5 ≤ 0.51 µm (20 µin) · SF6 ≤ 0.64 µm (25 µin) | SF1 ≤ 0.51 µm (20 µin) · SF2 ≤ 0.64 µm (25 µin) · SF3 ≤ 0.76 µm (30 µin) | Both meet the 0.8 µm food-contact level; EP adds a passive, low-particle surface |
| Surface structure | Levelled, no directional lay | Directional abrasive scratches | Fewer sites for residue and biofilm to hold |
| Passive layer | Chromium-enriched passive layer | Standard passive layer unless separately passivated | Better resistance to rouging and pitting |
| Typical use | ASTM A270 + BPE SF4–SF6: pharma, hospital and lab water | ASTM A270 + BPE SF1–SF3: dairy, water and food lines | Commonly specified for EDE-licensed (UAE), EU-GMP and FDA-regulated systems (EP) and 3-A / EHEDG food lines (MP) |
Choose the grade for the fluid and the cleaning chemistry first, then the finish. Chemistry below is the ASTM limit; your MTC shows the actual heat analysis.
The default for purified water, WFI and clean steam. The 2–3% molybdenum improves pitting resistance, which also makes it the safer choice for CIP circuits where chlorides are present.
Suits cold product lines in dairy, bottled water and food where chloride exposure is low. Lower cost than 316L.
½" to 4" OD (12.70–101.60 mm) · 1.65–2.11 mm wall · 6 m lengths. Full table below.
Sanitary systems are built from OD tube, not NPS pipe — so we list outside diameters, the way ASTM A270 and ASME BPE do. Other walls and custom lengths on request.
| OD (inch) | OD (mm) | Wall Thickness (mm) | Standard Length |
|---|---|---|---|
| ½" | 12.70 | 1.65 | 6 m |
| ¾" | 19.05 | 1.65 | 6 m |
| 1" | 25.40 | 1.65 | 6 m |
| 1½" | 38.10 | 1.65 | 6 m |
| 2" | 50.80 | 1.65 | 6 m |
| 2½" | 63.50 | 1.65 | 6 m |
| 3" | 76.20 | 1.65 | 6 m |
| 4" | 101.60 | 2.11 | 6 m |
Every dispatch includes EN 10204 3.1 MTCs, chemical analysis and Ra profilometer reports from a NABL-accredited lab. NABL is an ILAC-MRA signatory, like the UAE's EIAC.
A complete RFQ gets an accurate quote the first time. Include these eight items:
| Application / Process Line | Recommended Grade | Surface Finish | Is Electropolishing Needed? |
|---|---|---|---|
| Purified water, WFI loops, clean steam | 316L | SF4, or SF5/SF6 if specified | Usually yes |
| Hospital pharmacy and sterile-services water | 316L | SF4 or SF5 | Usually yes |
| Laboratory purified water and clean utilities | 316L | SF4 or SF5 | Often — check your spec |
| Dairy product and CIP lines | 304L or 316L | Ra ≤ 0.8 µm (3-A); MP SF1 or better | Rarely |
| Bottled water and juice | 316L or 304L | Ra ≤ 0.8 µm; MP SF1 | Rarely |
| Date syrup and food transfer | 304L or 316L | Ra ≤ 0.8 µm; MP SF1 | No |
| Stage | Check | Method / Tool | Documentation Issued |
|---|---|---|---|
| Incoming material | Grade and chemistry | PMI (XRF) and mill-certificate review | Heat number traced on MTC |
| After forming / sizing | OD, wall, ovality | Calibrated micrometers & gauges | Dimensional inspection records |
| Tube integrity | Weld soundness, leaks | Hydrostatic pressure & eddy-current test | Test certificate on MTC |
| After electropolishing | Internal Ra | Stylus profilometer precision testing | Ra roughness report |
| Visual bore inspection | Bore appearance | High-resolution borescope examination | Surface inspection report |
| Before dispatch | Cleanliness, caps, packaging | Visual; heat number marked on every tube | Packing list & shipping label |
Third-Party Inspection: Third-party inspection (TPI) is welcome in Mumbai — Bureau Veritas, SGS, TUV, DNV or any agency nominated by the client.
Sakshi Forge is an ISO 9001:2015 certified manufacturer of electropolished pipes, industrial flanges, forged fittings and high-precision stainless steel components located in Mumbai, India.
Send your grade, sizes and specification. Our QA team replies with a quote, a sample 3.1 MTC and a delivered lead time to your site.
Every pipe we supply to Al Ain adheres to strict international hygienic standards. Explore our core product specifications, Ra roughness certifications, and alloy grade properties: