ISO 9001:2015 Manufacturer · Mumbai

Electropolished Pipes & Tubes Manufacturer and Supplier in Tirupati

Tirupati district is the heart of southern Andhra Pradesh's industry, with Sri City on the Tamil Nadu border, electronics clusters at Tirupati and Renigunta, and pharma and food plants in the APIIC parks around them. We manufacture and electropolish SS 316L and 304L pipes and tubes and supply these plants directly, with MTC EN 10204 3.1, 100% PMI testing and a measured Ra report on every order.

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Verified Quality:ISO 9001:2015•EN 10204 3.1 MTC•100% PMI Tested•Internal Ra ≤0.4 µm•ASTM A269 / A270
Regional Capability

Electropolished Pipe for Tirupati, Sri City and the Plants Around Them

Tirupati district runs from the temple city down to the Tamil Nadu border, and its industry sits in a few places. Sri City, a privately developed integrated township of more than 7,500 acres in Satyavedu and Varadaiahpalem mandals, is the largest, with land leased for 99 years, about 62,000 workers, and clusters in food processing, automotive, engineering, textiles and electronics. Global food and FMCG companies have committed close to a billion dollars there. Two Electronics Manufacturing Clusters, one at Tirupati and Renigunta and one at Sri City, house electronics plants, and APIIC industrial parks such as Attivaram in Ozili mandal list pharma units. Smaller estates, including Pagali near Yerpedu, add MSME manufacturing. Sri City is about 55 km north of Chennai, with the Tirupati and Chennai airports both within about 100 km.

A word on fit. Automotive assembly, textiles and most electronics assembly don't use electropolished pipe on their main processes. Where we're useful is food and FMCG plants, pharma units, dairy and beverage lines, DI-water and clean utilities in electronics plants, and the fabricators who serve them.

Zone / MIDCTypical End-UseApplicationOur Usual Spec
Sri City (7,500+ acres)Food processing, FMCG, pharma, packaging, automotive, electronicsHygienic transfer, CIP, purified water, DI water, clean utility304L for food; 316L for pharma and chloride-bearing duty; internal Ra ≤0.4 µm, surface report
Electronics Manufacturing Clusters (Tirupati, Renigunta, Sri City)Mobile, consumer electronics and component plantsDI-water and clean-utility lines, laboratory lines316L / 304L
Attivaram APIIC park, Ozili mandalPharma and mixed unitsWFI, purified water, clean utility316L
Renigunta, Srikalahasti and Pagali (Yerpedu) estatesMixed MSME manufacturing and agroHygienic transfer, clean utility, skid assemblies304L, cut to drawing
Dairy, beverage and food units around TirupatiMilk, beverages and packaged foodMilk transfer, CIP, product lines304L; 316L for acidic or salted products
Tada–Naidupeta beltFootwear, mixed industry and port-linked unitsClean utility only304L
Fabricators and equipment buildersLocal and Chennai-linked workshops serving the plantsHeaders, skids, tank pipework, cut to drawing304L / 316L, traceable cut lengths

Food, beverage and FMCG lines

A smooth, passivated interior that cleans easily and doesn't hold residue, for plants that mix, heat, fill or wash their product.

Pharma purified water and WFI

316L with a smooth internal surface and verified passivation, for pharma units in Sri City and the APIIC parks.

DI water and clean utility in electronics plants

Smooth, passivated tubing where the plant's specification calls for stainless.

CIP and SIP lines

A smooth bore cleans faster and drains better, which matters for caustic and acid wash cycles.

Dairy and beverage lines

Hygienic tubing for milk transfer, juices and drinks.

Fabricators and equipment makers

Cut-to-length pipe with heat-number traceability for the shops that serve the township and the parks.

Local Buying Notes for Tirupati:
  • Sri City buyers are multinational, and they specify precisely. Many plants work to their parent company's specification and approved-vendor list. Send us the specification with your enquiry, and we'll tell you what we can meet and what we can't, and we won't claim a standard we don't certify.
  • Food and FMCG is the strongest fit. Milk, beverage, snack and packaged-food lines are cleaned with caustic and acid cycles, and 304L is the standard grade. 316L is the safer choice where acidic or salted products, or chloride-bearing sanitisers, are involved. Send us your product and CIP chemistry. Our internal Ra of 0.4 µm or better sits well inside the usual food band of 0.8 µm.
  • Electronics plants buy DI water systems, not usually EP stainless. Ultra-pure-water systems often use plastic piping. If your specification calls for stainless, send it and we'll say plainly what Ra and standards we can guarantee. Avoid hydrofluoric acid and abrasive slurries.
  • Automotive and textiles aren't the target. Their main processes don't use electropolished pipe. We'd rather tell you than sell you something you don't need.
  • Regulated pharma is audited. Every order ships with heat-number traceability, a measured Ra surface report, and passivation and ferrite records. These support your validation file but don't replace your own validation documentation.
  • Sri City is on the Chennai corridor. It is about 55 km from Chennai, so a combined dispatch with Chennai or Hosur sites is natural. If you also buy for them, or for Chittoor or Nellore, send the requirements together and we'll quote one consolidated dispatch with one document format.
  • Freight is a large share of any small order, and for a few plain lengths a local dealer will usually be cheaper. We're the better choice when you need a measured Ra, heat-number traceability, a particular size or finish, or the full document pack.
  • Protect the finish. Humid, coastal-corridor air can mark an electropolished surface in storage. We cap the ends and sleeve every length, and we recommend keeping the sleeves on until installation.
Technical Parameters

Technical Specification Tables

4A. Stainless Steel & Duplex Material Grades

GradeUNSWNR (EN)Typical Process Use
SS 316LS316031.4404Pharma, biotech, WFI loops, chloride or aggressive cleaning chemicals
SS 304LS304031.4307Dairy, food, beverage, winery, general hygienic & utility lines
Duplex 2205S31803 / S322051.4462High yield strength, extreme chloride resistance, chemical & coastal duty
Super DuplexS32750 / S327601.4410 / 1.4501High-pressure aggressive acids, offshore, harsh petrochemical streams

4B. Surface Roughness: Industry Reference vs Sakshi Forge Offer

ServiceTypical Industry BandRa µin (exact)Sakshi Forge Offer
Pharma / biotechRa ≤0.25 to ≤0.4 µm9.8 to 15.7 µinStandard: ≤0.4 µm (ASME BPE SF4)
Dairy / food / beverageRa ≤0.6 to ≤0.8 µm23.6 to 31.5 µinWithin standard offer (≤0.4 µm)
Semiconductor / UHPRa ≤0.13 to ≤0.25 µm5.1 to 9.8 µinAvailable on custom drawing spec
Conversions: 1 µm = 39.3701 µin; RMS (µin) ≈ Ra (µin) × 1.11. Example: Ra 0.4 µm = 15.75 µin Ra ≈ 17.5 µin RMS.

4C. Weight Formula and Illustrative Dimensions

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 SizeOD (mm)WT (mm)304L (kg/m)316L (kg/m)Duplex 2205 (kg/m)
½"12.71.650.4540.4570.447
¾"19.051.650.7150.7200.703
1"25.41.650.9760.9820.960
1½"38.11.651.4981.5081.473
2"50.81.652.0202.0331.987

4D. Core Technical Specifications

Interactive specification explorer with live filters (DOM-preserved for search indexing)

Filter:
GradeTypeOD RangeWall / ScheduleInternal RaStandards
SS 316LWelded½" to 2" (12.7–50.8 mm)1.65 mm / SCH 10S≤0.4 µm (SF4)ASTM A269 / A270, ASME BPE
SS 316LSeamless½" to 2" (12.7–50.8 mm)1.65–2.77 mm / SCH 40S≤0.4 µm (SF4)ASTM A269, ASME BPE
SS 316LWelded2½" to 6" (63.5–152.4 mm)2.11–2.77 mm / SCH 10S≤0.4 µmASTM A269 / A270
SS 316LSeamless2½" to 6" (63.5–152.4 mm)2.77–3.05 mm / SCH 40S≤0.4 µmASTM A269
SS 304LWelded½" to 2" (12.7–50.8 mm)1.65 mm / SCH 10S≤0.4 µmASTM A269 / A270
SS 304LSeamless½" to 2" (12.7–50.8 mm)1.65–2.11 mm≤0.4 µmASTM A269
SS 304LWelded2½" to 6" (63.5–152.4 mm)2.11–2.77 mm≤0.4 µmASTM A269 / A270
SS 304LWelded8" to 12" (219.1–323.9 mm)2.77–3.05 mm≤0.4 µmASTM A269
Duplex 2205Welded½" to 2" (12.7–50.8 mm)1.65–2.11 mm≤0.4 µmASTM A790
Duplex 2205Seamless½" to 4" (12.7–101.6 mm)2.11–3.05 mm≤0.4 µmASTM A790
Duplex 2205Welded4" to 8" (101.6–219.1 mm)2.77–3.76 mm≤0.4 µmASTM A790
Service Limitations (Told Upfront):
Avoid use with hydrofluoric acid. Not recommended for abrasive transport or abrasive slurries. Not for structural applications or high-impact wear. Handle with protective sleeves to avoid mechanical scratch damage.
Engineering Utility

Live Pipe Weight & Ra Surface Roughness Calculator

Instant dimension calculation and Ra unit conversions for engineering procurement

Pipe Weight Calculator

0.982 kg/m · 5.89 kg for 6 m
Weight formula: (OD − WT) × WT × K

Ra Surface Roughness Converter

≈ 17.4 µin RMS
1 µm = 39.3701 µin · RMS ≈ Ra × 1.11
In-House Workflow

The 5-Step Electropolishing and Passivation Process

01

Degreasing and Cleaning

Oils, cutting fluids and drawing residues are completely removed first. The finish is only as good as the chemical preparation.

02

Pickling / Activation

Where weld heat tint or surface oxide is present, it is etched and activated so the pipe surface electropolishes uniformly.

03

Anodic Electropolishing Bath

The pipe acts as anode in an electrolytic acid bath. High microscopic peaks dissolve first, levelling the surface and stripping free iron.

04

Passivation Stabilisation

The chromium-rich passive layer is stabilised per ASTM A967 / ASTM B912 to prevent future pitting and galvanic attack.

05

DI Water Rinse and Drying

High-purity deionised water rinse removes all electrolytic residues, followed by hot air drying, capping and clean poly-sleeving.

Auditable Records

Quality Assurance and Documentation

Document / TestStatus / 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
Questions & Answers

Frequently Asked Questions: Tirupati

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.
24-Hour Quote

Specify Electropolished Pipe for Your Tirupati Plant

Send your grade, OD × wall, Ra requirement, length and quantity. We'll quote within 24 hours.

Our Address

Shop No. 05, Ground Floor, 113/117, Dr. MG Mahimtura Marg, 3rd Kumbharwada, Mumbai, Maharashtra 400004

Sales & Engineering Hotline

Click below to view our direct engineer phone numbers, dispatch contacts, and official sales email.

Delivery Schedule

We dispatch from Mumbai, and delivery time depends on size, quantity and stock; it is confirmed in writing with each quotation.

Key Industrial Areas & Belts Served:
TirupatiSri CityReniguntaSrikalahastiYerpeduPagaliAttivaramOziliSatyaveduVaradaiahpalemTadaNaidupetaChittoor (nearby)Chennai (nearby)
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