ANSI B18.2.1 Bolt Coating How To Achieve The Best Performance

Posted by abyihui on November 25th, 2019

Gray phosphate
Gray phosphate is another popular coating designed to protect ANSI B18.2.1 bolts from corrosion. However, it is believed to provide a low level of protection. This means that it is not suitable for situations where the risk of corrosion is high. An example is in marine applications. In fact, this type of coating is well suited for use in dry environments, rather than where ANSI B18.2.1 bolts may be in contact with large amounts of water. In order to achieve optimum performance, this type of coating needs to be applied correctly. This means that when you want to use ANSI B18.2.1 bolts with a grey phosphate coating, it is wise to ensure that it is purchased from a manufacturer that works with a well-known coating company.

Yellow zinc
This is a coating that is applied electrically to ANSI B18.2.1 bolts to provide a low level of corrosion protection. It can be used in ANSI B18.2.1 bolts that may be in contact with water or in a humid environment. As with gray phosphate, it must be applied correctly to provide the desired level of corrosion protection.

When purchasing stainless steel ANSI B18.2.1 bolts, be sure to provide them with the coating that best suits your application. Understanding generic products and how they work will help you solve this problem, reducing the risk of buying less than ideal products.