ISO 1461, IS 4759 galvanizing in Chennai—zinc coating, precision finishing, fast turnaround, certified QC.
RR GalvaGlow
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At RR GALVAGLOW, every galvanized product is subjected to stringent quality testing before dispatch. From coating thickness checks to adhesion and appearance inspections, our team ensures your steel meets ISO 1461, ASTM A123, ASTM A153, and IS 4759 standards.
Whether it’s structural steel, cable trays, guardrails, or telecom towers, our lot-wise test certificates and visual inspection records guarantee confidence for EPC contractors, government tenders, and industrial buyers.
Galvanized steel without proper QC can:
That’s why RR GALVAGLOW invests in a dedicated QA/QC department to ensure compliance before dispatch.
| Stage | Test / Inspection | Method | Standards | Acceptance Criteria |
|---|---|---|---|---|
| 1. Coating Thickness (DFT) | Measure zinc thickness after galvanizing | Magnetic gauge / Gravimetric test | IS 4759, ASTM A123, ISO 1461 | Per ISO 1461 / ASTM A123 class and section thickness; typical 80–120 μm at our plant. Thickness map shared in QC report. |
| 2. Visual Inspection | Check surface finish & uniformity | Naked eye + magnified surface check | ISO 1461, ASTM A123 | Surface free from bare spots, runs, lumps, ash, blisters, flux stains |
| 3. Adhesion Test | Verify zinc bond strength to base steel | Hammer blow / Knife cut | ASTM A123 | No flaking, peeling, or detachment of zinc coating |
| 4. Mass per Unit Area | Weighing before & after galvanizing | Gravimetric mass/area calculation | IS 2629, ISO 1461 | Measured zinc mass/area ≥ minimum standard values |
| 5. Finish & Appearance | Check overall look, spangle & smoothness | Visual + surface profile check | ISO 1461 | Uniform silver finish, no sharp projections, acceptable spangle variation |
We provide galvanizing QC services across:
Ensure your project steel meets global QA benchmarks.
Call: +91 994 033 2979
Email: info@rrgalvaglow.com
Yes, we issue lot-wise DFT reports with inspection notes for every dispatch.
Yes. We achieve higher µm thickness (C4/C5) for high-corrosion environments.
Absolutely. We welcome client and independent QA agencies.
We test per ISO 1461, ASTM A123/A153, and IS 4759.
Yes, we provide signed certificates & inspection dossiers with every job.
Need galvanizing quality testing in Chennai? Share your project details and we’ll reply with pricing and lead time within 24 hours.