What is GSM coating?

What is GSM coating?

Corrugated sheets are also known as corrugated galvanized iron (CGI) sheets. ... The weight of zinc coating varies from 100 grams square meter (gsm) to 750 grams square meter. The weight of zinc coating varies with the thickness of the steel sheet and the application of the GI sheet.

Is code a Galvalume sheet?

IS Galvalume Sheet.

What is AZ 150?

The name AZ150 indicates the coat weight of 150 g/m2 per double side. The surface has been treated with SPT (Surface Protection Treatment) to prevent stains during handling and to ease shaping. APPEARANCE.

Which is better galvanized or Galvalume?

Galvalume® is more corrosion-resistant than galvanized steel, but because aluminum provides barrier protection instead of galvanic protection, scratches and cut edges are less protected. ... Most Galvalume®–like galvanized steel– is coated. But Galvalume has an excellent performance life in bare exposures as well.

Is standard for galvanized steel?

The basic specification for hot dip galvanized coatings on iron and steel articles is defined by a single standard, EN ISO 1461 'Hot dip galvanized coatings on iron and steel articles – specifications and test methods'. However, there are some exceptions to this standard (see thicker coatings below).

What are the properties of galvanized steel?

The iron elements in steel are incredibly prone to rusting, but the addition of zinc acts as a protective buffer between the steel and any moisture or oxygen. Galvanized steel is very protective, including sharp corners and recesses that couldn't be protected with other coatings, making it resistant to damage.

How thick is hot dip galvanized coating?

3-8 mils

How does hot dip galvanizing work?

Hot-dip galvanizing is the process of immersing iron or steel in a bath of molten zinc to produce a corrosion resistant, multi-layered coating of zinc-iron alloy and zinc metal. ... This reaction is a diffusion process, so the coating forms perpendicular to all surfaces creating a uniform thickness throughout the part.