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Inspection of Hot Dip Galvanized products
About Galvanizing
Galvanizing is the electrochemical process of providing Zinc coating to iron /Steel to prevent Corrosion and Rust.
This process of Zinc coating is widely used on Industrial and Domestic products on mass production considering the following benefits
Hot-Dip Galvanizing
Hot-dip galvanizing is one of the most economical, maintenance-free corrosion protection systems available. Like any other manufacturing process, hot-dip galvanized steel requires an inspection of the finished product to ensure compliance with applicable specifications. The inspection process requires a clear understanding of specification requirements and compliance measurement techniques to make an accurate assessment.
Third-Party Inspection Agency – Involve in the inspection of Galvanized products, can prepare the inspection Checklist considering the following (at least) – To deliver the sound inspection report on inspection of Galvanized products.
The Following Points have been covered in the context of the Inspection of Galvanizing products. Which will help the Third-Party Inspection Agency in India or Inspector who are into third party Inspection activities? To develop the Sound understanding and get prepared to deliver the third-party Inspection services and make the supplier and buyer happy to utilize the professional services of Third-Party Inspection Agency
Raw material required for galvanizing process & its compliances
Equipment used in Galvanizing process
Galvanizing process
What are the types of inspection carried on the Galvanized products or Samples?
Sr No | Product | Minimum Value or Average Mass of Coating (g/m2) |
1 | Castings-grey iron, malleable iron | 610 |
2 | Fabricated steel articles: 5 mm thick and overUnder 5 mm, but not less 2 mmUnder 2 mm, but not less than 1.2 mm | 610 460 340 |
3 | Threaded work other than tubes and tube fittings: 10 mm dia andUnder 10 mm dia | 300 270 |
No. of Units in the Lot | No. of Units to be Selected in a Sample | Acceptance No. |
Up to 25 | 3 | 0 |
26-100 | 5 | 0 |
101-150 | 8 | 1 |
151-500 | 13 | 1 |
501-1000 | 20 | 2 |
1001-10000 | 32 | 3 |
100001 and above | 50 | 5 |
What are inspection references specification for Galvanized products?
Benefits of Hot Dip Galvanizing
Different Appearances The appearance of the hot-dip galvanized coating can vary from piece to piece, and even section to section of the same piece. Common appearances for hot-dip galvanized steel immediately after galvanizing include bright and shiny, spangled, matte gray, and/or a combination of these. There are a number of reasons for the non-uniform appearance; however, it is important to note appearance has no bearing on the corrosion protection of the piece. Furthermore, in time, after exposure to the environment, all galvanized coatings will take on a uniform, matte gray appearance
Types of Defects in Galvanize process
Equipments used for inspection of Galvanized products.
We are a leading Third-Party Inspection agency in India providing a wide range of inspection services across India for engineering products inspection including Inspection of Hot Dip Galvanized products. Any organization looking for Inspection of Hot Dip Galvanized products may contact us.