Rajahmundry (Rajamahendravaram) is the Godavari delta's industrial city, home to long-established paper mills, rice and oil processors, coconut and fruit processing, and gas-related industry. We manufacture and electropolish SS 304L and 316L pipes and tubes and supply Rajahmundry's food, oil and mill buyers and fabricators directly, with MTC EN 10204 3.1, 100% PMI testing and a measured Ra report on every order.
Rajahmundry sits on the Godavari, just above the head of its delta, and it is the main industrial city of the East Godavari region after Kakinada. Paper-making is one of its oldest industries: the area has two mills of a large integrated pulp and paper company, at Rajahmundry and nearby Kadiyam, with a combined capacity of around 241,000 tonnes a year, and other paper units operate in the city. The delta's agriculture feeds a large agro-processing sector, with rice milling, coconut and palm-oil units, and fruit processing around mango and banana, since the district is among the country's leading producers of coconut and banana. The discovery of gas in the nearby KG Basin has also drawn energy-related ancillary industry to the area, and small units make textiles, fabricated metal and plastics.
A word on fit. Rice milling is dry, and pulp-making and paper-making are heavy chemical and mechanical processes whose main lines use carbon steel and specialty alloy. Where we're useful is the wet food and oil lines, fruit and banana processing, DM-water and clean utilities inside the mills and gas facilities, and the fabricators who serve them.
| Zone / MIDC | Typical End-Use | Application | Our Usual Spec |
|---|---|---|---|
| Edible-oil, coconut and palm-oil units | Refined oils, coconut products | Refined-oil clean-side lines, condensate, wash water, hygienic transfer | 304L; 316L after a media check |
| Fruit and banana processing (mango, banana value addition) | Pulp, puree and packaged fruit products | Pulp transfer, CIP, clean utility | 316L for acidic pulp; 304L for wash water and steam |
| Paper mills (Rajahmundry, Kadiyam and others) | Pulp, paper and board | DM-water, boiler-feed, sampling and laboratory lines only; pulp, bleach and caustic liquors are not a fit | 316L / 304L, small-bore |
| Gas and energy ancillary industry (KG Basin) | Gas processing support, energy services | Instrument, sampling and clean-utility lines; not process gas | 316L, small-bore, cut to drawing |
| Rajahmundry industrial estates and fabricators (including Rajanagaram) | Textiles, fabricated metal, plastics, equipment builders | Headers, skids, tank pipework, small-lot cut-to-length supply | 304L / 316L, traceable cut lengths |
| Rice mills | Dry processing | Not a fit | n/a |
A smooth, passivated interior that cleans easily and doesn't hold oil residue, on the clean side of refining and packing.
A smooth, passivated 316L interior that rinses clean and resists acidic pulp.
Smooth, passivated 304L and 316L for demineralised-water, boiler-feed and laboratory lines.
Small-bore stainless tube cut to drawing, for the analysis lines that need clean, traceable material.
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 serve the plants.
| 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.
Every pipe we supply to Rajahmundry adheres to strict international hygienic standards. Explore our core product specifications, Ra roughness certifications, and alloy grade properties: