Which material is better for the inner and outer jackets of breaker accessories?
There are about five common materials for inner jackets on the market. Let’s take a look at what they are today. First of all, let’s take a look. 40 chromium molybdenum wear resistance index is one star and is cheap. You can choose this material if the economy does not allow it. Then there is the 40 chromium molybdenum forged jacket, which has a wear resistance index of two stars. After forging The material will be more wear-resistant than 40 chromium-molybdenum. This 42-chromium-molybdenum forged material is much more wear-resistant than 40 chromium-molybdenum. This material is considered a better inner jacket, with a wear resistance index of three. Star, the one that is more wear-resistant than this is 20 chromium molybdenum carburization. After carburization, its surface is very hard, with a wear-resistance index of four stars. The fifth one is Rolls-Royce among the inner and outer jacket materials. The price is expensive, but the quality is quite worthy of the price. The price of 40 fallen nickel molybdenum is generally twice as expensive as that of 20 carburized, and the wear resistance index is ten stars.
