06
2020
-
09
What elements are included in the steel of the drill head pants? What role do they play?
Carbon C: Mainly affects the strength and hardness of steel. Excessive carbon content will reduce the toughness and weldability of the steel. Although the increase of carbon content in steel can improve the strength and wear resistance of parts, it damages the toughness and manufacturability of steel. Therefore, when designing the carbon content of steel, the carbon content should be determined according to different conditions. The steel used for drill head body needs high strength, wear resistance and certain toughness. It is more appropriate to choose carbon content between 0.42 and 0.48.
What elements are included in the steel of the drill head pants? What role do they play?
01
Carbon C: Mainly affects the strength and hardness of steel. Carbon too high,It will reduce the toughness and weldability of the steel. Although the increase of carbon content in steel can improve the strength and wear resistance of parts,But it damages the toughness and manufacturability of steel.,So when designing the carbon content of steel,To determine the carbon content according to different conditions,The steel for the drill bit body needs high strength and wear resistance and certain toughness.,It is more suitable to select the carbon content between 0.42% and 0.48%.
02
Silicon Si: Silicon can improve the strength and wear resistance of steel. Silicon increases the activity of carbon in austenite,Strong hindrance to the precipitation of cementite,Improve the tempering stability of steel. The effect of silicon on the strength and toughness of steel is extremely complex,As the silicon content increases,within a certain range of ingredients,Not only improve the strength of steel,And improve the toughness of steel. We choose a silicon content of 0.15 to 0.30 percent.
03
Manganese Mn: Manganese is beneficial to the improvement of the toughness of steel,Generally, higher levels of manganese are added to the design of steel. We choose it to be 0.60 to 0.90 percent.
04
Molybdenum Mo: Molybdenum in steel can prevent or reduce the tendency of steel to temper embrittlement,Improving the toughness of steel,And increase the resistance to tempering. Improve the hardenability of bainite. However, due to the low content of molybdenum in the world,It is a strategic resource.,Should be used as little as possible. We choose it to be 0.90 to 1.10 percent.
05
Chromium Cr: Chromium energy in steel,Improving hardenability, carburizing performance and tempering stability of steel,in mild steel,Chromium and molybdenum have similar effects,But not as strong as molybdenum. The addition of chromium to steel can significantly improve the oxidation resistance of steel.,Increase the corrosion resistance of steel. General steel in the addition of chromium at the same time,Other alloying elements must also be enhanced or added,such as Mn, Mo, etc,To show better performance. We choose to add chromium content of 0.90%~ 1.20%.
06
Nickel Ni: Nickel can improve the hardenability and carburizing performance of steel,Greatly improve the toughness and low temperature impact toughness of steel,is one of the important alloying elements,But because of its high price,In the design of steel should be donereduce its usage. The content we choose is0.40%~0.70%.
Previous article
RELATED INFORMATION
Pay attention to lotus mountain drilling tools:
Contact Us
Address: Lianhua Mountain, Yangjiazhangzi Economic and Technological Development Zone, Huludao City, Liaoning Province, China
Telephone:0086-429-4428053 0086-429-4428052
TikTok
WeChat Public Number
Privacy Policy Website construction:China Enterprise Power Jinzhou SEO Tags