Anakapalle district holds Andhra Pradesh's densest pharma and bulk-drug cluster: Jawaharlal Nehru Pharma City at Parawada, the Atchutapuram SEZ and the Nakkapalli industrial area, on the coast south of Visakhapatnam. We manufacture and electropolish SS 316L and duplex 2205 pipes and tubes and supply these plants and the contractors who build them directly, with MTC EN 10204 3.1, 100% PMI testing and a measured Ra report on every order.
Anakapalle sits on the coast about 40 km south-west of Visakhapatnam, and the industry around it falls into three belts. Jawaharlal Nehru Pharma City at Parawada, about 33 km south of Vizag, is a theme-based pharma park of roughly 2,400 acres developed by the state's industrial infrastructure corporation with a private partner, built to host bulk drug, pharmaceutical and fine-chemical makers, with a sector-specific pharma SEZ inside it and shared utilities and effluent infrastructure. The Andhra Pradesh Special Economic Zone at Atchutapuram and Rambilli, a multi-product SEZ of about 5,595 acres, hosts further API and formulation plants alongside other sectors. Nakkapalli, in the Visakhapatnam–Kakinada petroleum, chemicals and petrochemicals investment region, is a larger industrial area planned for chemicals and related industry, and Lankelapalem also lists pharma units.
A word on fit. Most plants here make bulk drugs and APIs by chemical synthesis, and their reactor-side solvent, acid and halide lines can need other materials. The coast adds salt air and chloride-bearing water. Where we're useful is the clean side of these plants (purified water, WFI, clean utilities, laboratory lines and formulation lines), chloride-heavy duty where duplex 2205 is the better answer, and the EPC contractors and fabricators who build them.
| Zone / MIDC | Typical End-Use | Application | Our Usual Spec |
|---|---|---|---|
| Jawaharlal Nehru Pharma City, Parawada (about 2,400 acres) | Bulk drugs, APIs, formulations and fine chemicals | WFI, purified water, CIP, clean utility, laboratory lines | 316L, internal Ra ≤0.4 µm, surface report; duplex 2205 for chloride duty |
| Pharma SEZ inside Parawada | Export-oriented pharma units | Purified water, clean steam, WFI, design-stage specs | 316L, full document pack |
| APSEZ Atchutapuram and Rambilli (about 5,595 acres) | Multi-product SEZ including API and formulation plants | Purified water, clean utility, laboratory lines; process lines after a media check | 316L; duplex 2205 after a media check |
| Nakkapalli industrial area | Chemicals, petrochemicals and mixed industry, partly planned | Clean utility, DM water, design-stage specs | 316L / duplex 2205, project quotes |
| Lankelapalem and other APIIC pharma parks | Pharma and API units | Purified water, clean utility | 316L |
| EPC contractors and fabricators building for the estates | Plant construction and process equipment | Headers, skids, clean-utility piping, cut to drawing | 316L / 304L, traceable cut lengths |
| Anakapalle town agro and food units | Jaggery, sugar and food processing | Hygienic transfer, wash lines | 304L; 316L for chloride-bearing wash |
316L with a smooth internal surface and verified passivation.
Duplex 2205 and 316L, chosen for chloride resistance rather than finish alone.
DM-water, sampling, instrument and laboratory lines, with process lines checked against your media.
Smooth, passivated tubing for tablets, injectables and packaging-side utilities.
Cut-to-length pipe with heat-number traceability and a document pack your client's inspector will accept.
Quotes against your drawings and specification, with the document pack you'll need for commissioning.
| 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 316L | Welded | ½" to 2" (12.7–50.8 mm) | 1.65 mm / SCH 10S | ≤0.4 µm (SF4) | ASTM A269 / A270, ASME BPE |
| SS 316L | Seamless | ½" to 2" (12.7–50.8 mm) | 1.65–2.77 mm / SCH 40S | ≤0.4 µm (SF4) | ASTM A269, ASME BPE |
| SS 316L | Welded | 2½" to 6" (63.5–152.4 mm) | 2.11–2.77 mm / SCH 10S | ≤0.4 µm | ASTM A269 / A270 |
| SS 316L | Seamless | 2½" to 6" (63.5–152.4 mm) | 2.77–3.05 mm / SCH 40S | ≤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.
Every pipe we supply to Anakapalle adheres to strict international hygienic standards. Explore our core product specifications, Ra roughness certifications, and alloy grade properties: