Galvanneal Sheet Metal Thickness

010 250 min max slit width.

Galvanneal sheet metal thickness.

Our galvanized sheet metal is g60 and we use a40 galvanneal. The number in that code refers to the thickness of the zinc coating on the product. The gauges shown above are based on american galvanneal sheet steel manufacturers gauge thickness. 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.

Galvannealed steel has very similar properties as standard galvanized but the surface has a more porous and abrasive finish that more readily accepts paint. May have minor scratching. 73 slit width tolerance. This process of extreme heating draws more of the iron out of the steel and causes it to mix with the zinc.

These are ideal thicknesses for most applications and. This is preferred over galvanized if the metal is to be painted. Has no protective film. Serving the sheet metal industry in the southeast since 1874 material specification sheet galvanneal steel.

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. 005 alliance steel s galvannealed steel sheet and coil service capabilities include slitting shearing blanking degreasing and brushing stretcher leveling and metallurgical support. 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. 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.

Coating thickness is measured as the coating weight in ounces per square foot. Galvannealed steel sheet metal also known as galvanneal is the result of galvanizing followed by annealing of sheet steel. For example a40 tells you that the metal contains 0 40 ounces of coating per square foot. This allows for the galvannealed steel to be more ductile and flexible.

Spec sheet item codes. G60 has 0 60 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. Galvanneal steel includes the process of galvanizing with an added step after the zinc coating the steel is heated to around 1050 fahrenheit.

Galvannealed steel has a matte grey color uniform which can be easily painted. Galvanneal sheets offers good paintability weldability corrosion resistance and formability.