Bardhaman is the district town of West Bengal's "rice bowl", on the Grand Trunk Road between Durgapur and Kolkata, with rice mills, agro-based industry and one of the state's main potato belts around it. We manufacture and electropolish SS 304L and 316L pipes and tubes and supply Bardhaman's food plants and fabricators directly, with MTC EN 10204 3.1, 100% PMI testing and a measured Ra report on every order.
Purba Bardhaman district was carved out of the old Bardhaman district in 2017, with the district town at Bardhaman and other towns at Memari, Guskara, Kalna, Katwa and Dainhat. The state's district profile calls it the "rice bowl" of West Bengal, with a growing base of rice mills and agro-based industries. The district also grows large volumes of potato, sugarcane and jute, and it sits in the Burdwan division that includes the Durgapur–Asansol industrial belt, which has its own pages. The town is about 105 km from Kolkata's airport, about 100 km from Asansol and on the Howrah–Bardhaman main and chord rail lines.
A word on fit. Rice milling, parboiling, jute processing and cold-storage refrigeration don't use electropolished pipe. Where we're useful is wet food lines (potato washing, blanching and frying, rice-based foods and edible oil), small dairy and sweet-making units, and the fabricators who build for them.
| Zone / MIDC | Typical End-Use | Application | Our Usual Spec |
|---|---|---|---|
| Rice mills and agro-based industries (Bardhaman, Memari, Guskara) | Rice milling and agro processing | Mostly dry or steam-boiler duty; wash lines and rice-based food lines only | 304L |
| Potato processing (the district is a major potato zone) | Potato washing, blanching, frying and flake or chip making | Wash water, slurry-free transfer, CIP, clean utility | 304L; 316L for chloride-bearing wash or brine |
| Edible oil and sugarcane units (Katwa and the cane belt) | Oil refining, sugar and jaggery | Clean-side process water, condensate, hygienic transfer | 304L / 316L after a media check |
| Small dairy and sweet-making units | Milk products and confectionery | Milk transfer, CIP, product lines | 304L, internal Ra ≤0.4 µm |
| Cold storage and jute units | Potato cold storage, jute processing | Not a fit; refrigeration and dry processing | n/a |
| Fabricators in Bardhaman and Kalna | Local workshops serving food plants | Headers, skids, tank pipework, cut to drawing | 304L / 316L, traceable cut lengths |
A smooth, passivated interior that rinses clean and doesn't hold starch or oil residue, for washing, blanching and frying lines.
Process water, condensate and hygienic transfer, once we've checked your media.
Hygienic tubing for milk transfer and CIP.
A smooth bore cleans faster and drains better, which matters for caustic and acid wash cycles.
Cut-to-length pipe with heat-number traceability for the shops that build for the district's food plants.
Quotes against your drawings and specification at design stage.
| Grade | UNS | WNR (EN) | Typical Process Use |
|---|---|---|---|
| SS 316L | S31603 | 1.4404 | Pharma, biotech, WFI loops, chloride or aggressive cleaning chemicals |
| SS 304L | S30403 | 1.4307 | Dairy, food, beverage, winery, general hygienic & utility lines |
| Duplex 2205 | S31803 / S32205 | 1.4462 | High yield strength, extreme chloride resistance, chemical & coastal duty |
| Super Duplex | S32750 / S32760 | 1.4410 / 1.4501 | High-pressure aggressive acids, offshore, harsh petrochemical streams |
| Service | Typical Industry Band | Ra µin (exact) | Sakshi Forge Offer |
|---|---|---|---|
| Pharma / biotech | Ra ≤0.25 to ≤0.4 µm | 9.8 to 15.7 µin | Standard: ≤0.4 µm (ASME BPE SF4) |
| Dairy / food / beverage | Ra ≤0.6 to ≤0.8 µm | 23.6 to 31.5 µin | Within standard offer (≤0.4 µm) |
| Semiconductor / UHP | Ra ≤0.13 to ≤0.25 µm | 5.1 to 9.8 µin | Available on custom drawing spec |
Weight (kg/m) = (OD − WT) × WT × K, where K = 0.02491 (304/304L, 7.93 g/cm³), 0.02507 (316/316L, 7.98 g/cm³) and 0.02450 (Duplex 2205, 7.80 g/cm³).
| Nominal Size | OD (mm) | WT (mm) | 304L (kg/m) | 316L (kg/m) | Duplex 2205 (kg/m) |
|---|---|---|---|---|---|
| ½" | 12.7 | 1.65 | 0.454 | 0.457 | 0.447 |
| ¾" | 19.05 | 1.65 | 0.715 | 0.720 | 0.703 |
| 1" | 25.4 | 1.65 | 0.976 | 0.982 | 0.960 |
| 1½" | 38.1 | 1.65 | 1.498 | 1.508 | 1.473 |
| 2" | 50.8 | 1.65 | 2.020 | 2.033 | 1.987 |
Interactive specification explorer with live filters (DOM-preserved for search indexing)
| Grade | Type | OD Range | Wall / Schedule | Internal Ra | Standards |
|---|---|---|---|---|---|
| SS 304L | Welded | ½" to 2" (12.7–50.8 mm) | 1.65 mm / SCH 10S | ≤0.4 µm | ASTM A269 / A270 |
| SS 304L | Seamless | ½" to 2" (12.7–50.8 mm) | 1.65–2.11 mm | ≤0.4 µm | ASTM A269 |
| SS 304L | Welded | 2½" to 6" (63.5–152.4 mm) | 2.11–2.77 mm | ≤0.4 µm | ASTM A269 / A270 |
| SS 304L | Welded | 8" to 12" (219.1–323.9 mm) | 2.77–3.05 mm | ≤0.4 µm | ASTM A269 |
Instant dimension calculation and Ra unit conversions for engineering procurement
Oils, cutting fluids and drawing residues are completely removed first. The finish is only as good as the chemical preparation.
Where weld heat tint or surface oxide is present, it is etched and activated so the pipe surface electropolishes uniformly.
The pipe acts as anode in an electrolytic acid bath. High microscopic peaks dissolve first, levelling the surface and stripping free iron.
The chromium-rich passive layer is stabilised per ASTM A967 / ASTM B912 to prevent future pitting and galvanic attack.
High-purity deionised water rinse removes all electrolytic residues, followed by hot air drying, capping and clean poly-sleeving.
| Document / Test | Status / Scope |
|---|---|
| MTC EN 10204 3.1 with heat-number traceability | Confirmed (Standard with every dispatch) |
| 100% PMI test and certificate | Confirmed (Handheld XRF on every pipe length) |
| Ra surface roughness test (stylus profilometer) & surface report | Confirmed (Supplied with measured Ra values) |
| Hydro (leak and pressure) test & certificate | Confirmed (Hydrostatic tested per ASTM spec) |
| Passivation verification and ferrite check | Confirmed (Reported in quality dossier) |
| QA inspection report and mill traceability | Confirmed (Approved origin mills) |
| Third-party inspection (TÜV / Bureau Veritas / SGS / DNV) | Accepted upon customer request |
Send your grade, OD × wall, Ra requirement, length and quantity. We'll quote within 24 hours.
Shop No. 05, Ground Floor, 113/117, Dr. MG Mahimtura Marg, 3rd Kumbharwada, Mumbai, Maharashtra 400004
Click below to view our direct engineer phone numbers, dispatch contacts, and official sales email.
We dispatch from Mumbai, and delivery time depends on size, quantity and stock; it is confirmed in writing with each quotation. We cap the pipe ends, sleeve each length and pack for the journey and for humid air, so the electropolished finish arrives undamaged. If your project has a fixed date, tell us when you enquire and we'll say plainly whether it fits.
Every pipe we supply to Bardhaman adheres to strict international hygienic standards. Explore our core product specifications, Ra roughness certifications, and alloy grade properties: