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what type of stainless steel is typically used for machine screws?

by:Qin Ge Ceramic & Building     2020-03-03
Machine screws are sub-categories of screws used to connect mechanical parts together.
They are usually narrow in diameter, threaded from the top to the tip and inserted into the pre-threaded hole.
Like other types of screws, machine screws have a wide variety of head types and head shapes;
They also have a wide range of materials including stainless steel, carbon steel, zinc
Coated Steel and nylon.
Stainless steel is known for its superior corrosion resistance and ability to withstand high temperatures.
It rusts when carbon steel is exposed to moisture, but stainless steel does not.
Create rust-
Ordinary steel is mixed with other elements, especially chromium.
When the chromium content of the steel exceeds 10%, it is classified as stainless steel.
When stainless steel is exposed to moisture, chromium is oxidized and forms an almost invisible protective layer on the metal, not rust.
One of the most basic types of stainless steel is a mixture of iron and chromium, whose crystal structure is ferrite, which is why it is called ferrite stainless steel.
There are other types of stainless steel.
Most stainless steel machine screws are made of 18/8 stainless steel, also known as the 304 type.
Nickel was added inside. -
Like most types of stainless steel-
To a certain extent, an Austrian crystal structure is created instead of ferrite.
It is considered an Austrian stainless steel with strong toughness and toughness;
Also, its shape is easy.
This is why the 304 type is the most commonly used type of stainless steel.
Since the 18/8 stainless steel is annealing, it is not magnetic-
Therefore, stainless steel machine screws are no exception. A lower-
Carbon version of 304 stainless steel (called 304L)
Used in particularly corrosive environments.
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