Galvanneal Sheet Metal Thickness

Coating thickness is measured as the coating weight in ounces per square foot. Galvannealed steel has very similar properties as standard galvanized but the surface has a more porous and abrasive finish that more readily accepts paint. For example the coating designation g 90cifies spe there is a minimum coating weight of 90 ounces per square foot on both sides of the.

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The gauges shown above are based on american galvanneal sheet steel manufacturers gauge thickness.

Galvanneal sheet metal thickness.

In comparison to galvanized steel the coating is harder and more brittle. May have minor scratching. A40 galvanneal is the most commonly used coating while a60 is less popular because it tends to be too powdery when it sits unpainted too long. Spec sheet item codes.

Galvanneal is the main paintgrip used in the duct fabrication industry taking the place of phos bond which used to be the only option many years ago. Hot rolled steel is steel that has been heated above its recrystalization point and is pushed between two rollers to meet a certain length and thickness. These will vary from british gauges with some exceptions. Garfield avenue los angeles ca 90040.

Galvannealed steel has a matte grey color uniform which can be easily painted. Galvanneal sheets offers good paintability weldability corrosion resistance and formability. Serving the sheet metal industry in the southeast since 1874 material specification sheet galvanneal steel. Galvannealed steel sheet metal also known as galvanneal is the result of galvanizing followed by annealing of sheet steel.

73 slit width tolerance. Hot rolled galvannealed steel is derived from the temperature of the alloy when it is rolled into a sheet. This is preferred over galvanized if the metal is to be painted. These are ideal thicknesses for most applications and.

This process of extreme heating draws more of the iron out of the steel and causes it to mix with the zinc. This allows for the galvannealed steel to be more ductile and flexible. Galvanneal steel includes the process of galvanizing with an added step after the zinc coating the steel is heated to around 1050 fahrenheit. For example a40 tells you that the metal contains 0 40 ounces of coating per square foot.

Our galvanized sheet metal is g60 and we use a40 galvanneal. G60 has 0 60 ounces of coating per square foot. Has no protective film. 010 250 min max slit width.

005 alliance steel s galvannealed steel sheet and coil service capabilities include slitting shearing blanking degreasing and brushing stretcher leveling and metallurgical support. The number in that code refers to the thickness of the zinc coating on the product.