Is hot dipped galvanized the same as galvanized 2024?
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Julian Turner
Works at the International Air Transport Association, Lives in Montreal, Canada.
As a metallurgical engineer with a focus on surface treatments and coatings, I can provide a detailed explanation on the differences between hot dipped galvanizing and galvanizing, specifically in the context of their application on bolts and nuts.
Hot dipped galvanizing is a process where metal parts are submerged in a molten bath of zinc at a temperature of around 450°C (850°F). The zinc coating that results from this process is quite thick, typically ranging from 55 to 90 micrometers, depending on the duration of immersion and the specific requirements of the job. This method provides a uniform and robust layer of zinc that offers excellent corrosion protection. The coating is also ductile, which means it can be bent or formed without cracking. Due to the thickness of the zinc layer, it is common for galvanized nuts to be tapped oversize to ensure that they can be properly threaded onto bolts. This is because the zinc coating can make the threads slightly larger than standard dimensions.
On the other hand, zinc plating or electroplating is an electrochemical process where zinc is applied to the surface of the metal part through the use of an electric current. The zinc layer produced by electroplating is much thinner than that of hot dipped galvanizing, usually in the range of 5 to 15 micrometers. This thinner coating is less durable and is not as effective at providing long-term corrosion protection, especially in outdoor environments where the coating may be exposed to harsh weather conditions. Electroplated coatings are more suitable for indoor applications or where a thin, aesthetically pleasing finish is desired.
It is important to note that while both processes involve the application of zinc to the surface of metal parts, the properties and applications of the resulting coatings are quite different. Hot dipped galvanizing is preferred for its durability and corrosion resistance, making it ideal for outdoor applications and structural components. In contrast, electroplating offers a thinner, more aesthetically pleasing finish that is better suited for indoor use or applications where the coating does not need to withstand significant wear or exposure to the elements.
In summary, hot dipped galvanizing and zinc electroplating are not the same. The former provides a thicker, more durable coating that is better suited for outdoor and structural applications, while the latter offers a thinner, more aesthetically pleasing finish that is more appropriate for indoor use or applications with less demanding requirements.
Hot dipped galvanizing is a process where metal parts are submerged in a molten bath of zinc at a temperature of around 450°C (850°F). The zinc coating that results from this process is quite thick, typically ranging from 55 to 90 micrometers, depending on the duration of immersion and the specific requirements of the job. This method provides a uniform and robust layer of zinc that offers excellent corrosion protection. The coating is also ductile, which means it can be bent or formed without cracking. Due to the thickness of the zinc layer, it is common for galvanized nuts to be tapped oversize to ensure that they can be properly threaded onto bolts. This is because the zinc coating can make the threads slightly larger than standard dimensions.
On the other hand, zinc plating or electroplating is an electrochemical process where zinc is applied to the surface of the metal part through the use of an electric current. The zinc layer produced by electroplating is much thinner than that of hot dipped galvanizing, usually in the range of 5 to 15 micrometers. This thinner coating is less durable and is not as effective at providing long-term corrosion protection, especially in outdoor environments where the coating may be exposed to harsh weather conditions. Electroplated coatings are more suitable for indoor applications or where a thin, aesthetically pleasing finish is desired.
It is important to note that while both processes involve the application of zinc to the surface of metal parts, the properties and applications of the resulting coatings are quite different. Hot dipped galvanizing is preferred for its durability and corrosion resistance, making it ideal for outdoor applications and structural components. In contrast, electroplating offers a thinner, more aesthetically pleasing finish that is better suited for indoor use or applications where the coating does not need to withstand significant wear or exposure to the elements.
In summary, hot dipped galvanizing and zinc electroplating are not the same. The former provides a thicker, more durable coating that is better suited for outdoor and structural applications, while the latter offers a thinner, more aesthetically pleasing finish that is more appropriate for indoor use or applications with less demanding requirements.
2024-05-26 07:21:41
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Works at the International Atomic Energy Agency, Lives in Vienna, Austria.
When used on bolts, due to the thickness of the zinc coating, all galvanized nuts must be tapped oversize. Zinc plating or electroplating is a process where zinc is applied by using a current of electricity. It is a thinner coating than hot dip galvanizing making it unsuitable for outdoor applications.Jun 27, 2012
2023-06-07 17:57:11
Alexander Wright
QuesHub.com delivers expert answers and knowledge to you.
When used on bolts, due to the thickness of the zinc coating, all galvanized nuts must be tapped oversize. Zinc plating or electroplating is a process where zinc is applied by using a current of electricity. It is a thinner coating than hot dip galvanizing making it unsuitable for outdoor applications.Jun 27, 2012
