To quickly assess galvanized steel quality, check the coating thickness, adhesion, surface condition, and dimensions. Look for defects like rust or cracks. Use a gauge to measure the zinc coating, perform a scratch or bend adhesion test, and verify the steel's dimensions and. There are four ways to measure the galvanization thickness: The most practical way to measure galvanizing thickness is the non-destructive method utilizing the magnetic principle for determining coating thickness. This test is: Because it is non-destructive, magnetic thickness measurement is the. This standard specifies the local thicknessand mean coating massbased primarily on the steel thickness. Explanation: Tray Sheet Metal Thickness: Typically, the side plates and base plates of cable trays range from 1. Carbon steel used for cable trays shall be protected against corrosion by the following processes: Hot-dip galvanized zinc after fabrication in accordance with ASTM A123/A123M, Coating Grade 65 with an average zinc coating weight of 460 g/m2 per side or coating thickness of 0.
[PDF Version]