Galvanneal Sheet Metal Thickness

Galvannealed steel has a matte grey color uniform which can be easily painted.

Galvanneal sheet metal thickness.

Galvannealed steel has very similar properties as standard galvanized but the surface has a more porous and abrasive finish that more readily accepts paint. This allows for the galvannealed steel to be more ductile and flexible. This is preferred over galvanized if the metal is to be painted. Garfield avenue los angeles ca 90040.

May have minor scratching. 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. G60 has 0 60 ounces of coating per square foot. Serving the sheet metal industry in the southeast since 1874 material specification sheet galvanneal steel.

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. 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. For example a40 tells you that the metal contains 0 40 ounces of coating per square foot. Hot rolled galvannealed steel is derived from the temperature of the alloy when it is rolled into a sheet.

Has no protective film. The number in that code refers to the thickness of the zinc coating on the product. 73 slit width tolerance. 010 250 min max slit width.

Galvannealed steel sheet metal also known as galvanneal is the result of galvanizing followed by annealing of sheet steel. Our galvanized sheet metal is g60 and we use a40 galvanneal. Spec sheet item codes. This process of extreme heating draws more of the iron out of the steel and causes it to mix with the zinc.

Coating thickness is measured as the coating weight in ounces per square foot. 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. 005 alliance steel s galvannealed steel sheet and coil service capabilities include slitting shearing blanking degreasing and brushing stretcher leveling and metallurgical support. Galvanneal sheets offers good paintability weldability corrosion resistance and formability.

These are ideal thicknesses for most applications and. In comparison to galvanized steel the coating is harder and more brittle.