Views: 2 Author: Site Editor Publish Time: 2020-09-01 Origin: Site
Stainless steel is an alloy composed of steel and chromium. The strength of stainless steel is directly related to the content of chromium in the alloy. The higher the chromium content, the higher the strength of the steel.In this article, we will provid e information about stainless steel turning parts.
The following knowledge points are listed below:
What are stainless steel turning parts
Types of stainless steel used in the turning process
Products of stainless steel turning parts
Benefits of stainless steel turning parts
CNC turning is a manufacturing process in which a rod material is clamped in a chuck and rotated while a tool is fed into the workpiece to remove the material to create the desired shape. A turret (display center), with tools attached, is programmed to move to the raw material bar and remove materials to create the result of the program. This is also called "subtractive processing" because it involves material removal. If the center has tuning and milling capabilities, the rotation can be stopped to allow other shapes to be milled. Stainless steel could be one of the materials used for cnc turning to make stainless steel turning parts.
Stainless steel is an iron-based alloy containing more than 10.5% chromium. Chromium is an alloying element that imparts corrosion resistance to stainless steel. It combines with oxygen to form a thin and transparent chromium oxide protective film on the metal surface. The chromium oxide film is stable and protective in normal atmosphere or mild water environment, and can be improved with high chromium, nickel, molybdenum and/or other alloying elements. Chromium improves the stability of the film; molybdenum and chromium increase the resistance to chloride ion penetration; and nickel can improve the resistance of the film in a strong acid environment. In the event that the protective (passive) membrane is disturbed or even destroyed, it will reform and continue to vigorously protect the environment in the presence of oxygen.
One of the three most widely used stainless steels (Type 304, Type 430, or Type 410) is a good starting point in the selection process because these types are the easiest to obtain.
Type 304 has a wide range of applications. It can resist ordinary building corrosion, has strong corrosion resistance in food processing environment, and it can resist organic chemicals, dyes and various inorganic chemicals. Type 304 has good tolerance to nitric acid and sulfuric acid, with moderate temperature and concentration. It is widely used in liquefied gas storage, low-temperature equipment, electrical appliances and other consumer products, kitchen equipment, hospital equipment, transportation and wastewater treatment.
Type 316 contains slightly more nickel and 2-3% molybdenum than type 304, which makes it more resistant to corrosion than type 304, especially in chloride environments that are prone to pitting corrosion. Type 316 was developed for use in sulfite pulp mills because of its resistance to sulfuric acid compounds. However, its use has expanded to handle many chemical substances in the processing industry.
Type 410 has the lowest alloy content among the three general-purpose stainless steels, and is used for high-stress components that require a combination of strength and corrosion resistance, such as fasteners. Type 410 is resistant to corrosion in mild atmosphere, steam and many mild chemical environments
Benefits of stainless steel included:
(1) Chemical properties: steel has the best chemical and electrochemical corrosion resistance, second only to titanium alloys.
(2) Physical properties: heat resistance, high temperature resistance, low temperature resistance, and even ultra-low temperature resistance.
(3) Process performance: Austenitic stainless steel has the best process performance. Due to its good plasticity, it can be processed into various sheets, pipes and other profiles, suitable for pressure processing. Martensitic stainless steel has poor process performance due to high hardness.