Can cast steel gate valves and 304 stainless steel gate valves be used in common?

Although cast steel gate valves and 304 stainless steel gate valves are both made of steel, they are essentially different. They have different varieties, different chemical compositions, and different applicable media. Therefore, in practical applications, can cast steel gate valves and 304 stainless steel gate valves be used interchangeably? The answer is no, let’s learn more about it below!

First of all, stainless steel gate valves are more corrosion-resistant, have longer service life, and can withstand media with higher acid and alkali content as well as some special media. However, cast steel is only suitable for ordinary media, especially not for corrosive media. If the cast steel gate valve is used in media with high acid and alkali content, it will rust first, and then gradually rust and damage the valve, causing it to malfunction. use.

In addition to the different applicable media, the prices of these two materials are also different. Some friends may think that 304 stainless steel is more expensive than cast steel, but it is not. If you compare a high-density high-quality cast steel gate valve with a regular 304 stainless steel gate valve, the price of the cast steel gate valve will be higher; if you compare a cast steel gate valve with average quality with a regular 304 stainless steel gate valve, the price of the stainless steel gate valve will be higher. higher. Therefore, customers need to choose the gate valve that suits them based on their actual working conditions and make a good budget.

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