In China, the thickness of the galvanized layer is usually determined according to different standards and requirements. Here are some common galvanizing thickness ranges:
Hot dip galvanizing (hot dip galvanizing): Hot dip galvanizing is a coating process where steel is immersed in molten zinc. According to the Chinese standard GB/T 13912-2002 "Metal Covering Coatings and Coatings", the minimum average galvanized layer thickness for hot dip galvanizing should be 45μm, and the minimum local galvanized layer thickness should be 35μm.
Electro-galvanizing (cold galvanizing): Electro-galvanizing is the formation of a zinc layer on the surface of steel through electrochemical methods. According to the Chinese standard GB/T 10125-1997 "Test Method for Electroplated Zinc Layer", the thickness of the zinc layer of electroplated zinc is usually between 5μm and 25μm.
It should be noted that the thickness ranges mentioned above are only general guidelines and specific requirements may vary based on different applications and standards. Therefore, in actual applications, relevant standards should be referred to or confirmed with suppliers according to specific requirements.
