Galvanized Sheet Metal Zinc Thickness

The coating thickness ranges from an average of 7 µm on the zi00 sheet to 42 µm on the heaviest z600 sheet.

Galvanized sheet metal zinc thickness.

Kynar galvalume steel for metal roofing and gutters. Gauge or gage sizes are numbers that indicate the thickness of a piece of sheet metal with a higher number referring to a thinner sheet. It is also important to remember for all continuous galvanized sheet materials including electrogalvanized the coating weight is given for the total for both sides of the sheet. A coil to coil process steel sheets from 0 010 to 1 70 inches 0 25 mm to 4 30 mm thick and up to 72 inches 1 830 mm wide is passed as a continuous ribbon through cleaning baths and molten zinc at speeds up to 600 feet per minute.

Continuous sheet galvanizing is also a hot dip process but is only applied to steel sheet strip and wire. There are two coating weights used to specify zinc coated steel doors and frames. The equivalent thicknesses differ for each gauge size standard which were developed based on the weight of the sheet for a given material. Kynar aluminum for metal roofing.

The z600 coating 42 µm on both sides can achieve a service life of up to 80 years. To obtain the amount of zinc per unit area of surface the weight given must be divided in two assuming equal distribution on both sides. In a coating weight of 40 there are 0 4 ounces of zinc per square foot of steel and in 60 there are 0 6 ounces of zinc per square foot of steel. 0 7 mm 0 8mm and 1 5 mm.

Sheet metal measuring tools. The corrosion resistance provided by the zinc coating is in direct proportion to the coating s thickness. Initial cost will always be considered when. Click here for more.

Garfield avenue los angeles ca 90040. For example an astm a653 class g90 sheet contains 0 90 oz ft 2 of zinc or about 0 45 oz ft 2 per side. The thickness of the zinc coating is carefully controlled in the manufacturing process by air wiping the sheet as it comes out from the galvanizing bath. Use it as an alternative to lead for sound barriers and vibration dampers as well as for emi rfi shields and architectural sheeting.