9310 steel and 8620 steel
Otai exports various tool steel and alloy to more than 30 countries from Europe and America, Middle East, and Asia. Our steel materials meet DIN / ASTM / EN / JIS etc different international standards. Today we will talk about 9310 steel and 8620 steel’s difference and its application.
9310 Alloy Steel (also known as AISI 9310 steel) is low alloy steel composed primarily of nickel and chromium.
The standard is ASTM A322. It shows high hardenability, high core hardness, and high fatigue strength. It also possesses solid ductility, weldability, and machinability properties. Its Components with a large cross-section requiring high toughness and core strength, It Mainly used for such as critical aircraft engine gears, automotive applications, structural components, gears, rods, heat-treatable shafts, high-performance helicopter transmission gears, and other components.
8620 is the structural steel with the hardenability guaranteed by American standard. Its standard is as follows: ASTM A29/ A29m-2015 (hot forged and cold processed carbon steel and alloy steel bar).
It has high hardenability, no tempering brittleness, good weldability, little tendency to form a cold crack, good maintainability, and cold strain plasticity. Generally used in quenching and tempering or carburizing state, used for manufacturing small and medium-sized automobile, tractor engine and gear in the transmission system, oil drilling and metallurgy open mine cone bit teeth and teeth body, manufacturing steam turbine gear whole rotor internal combustion engine connecting rod valve section forgings. At the same time, the surface of 8620 steel after carburizing heat treatment has relatively high hardness, wear-resistance, and contact fatigue strength, while the core retains good toughness and can withstand high impact load. It can be used as automobile bearing, spindle, gear, mechanical parts, and other impact-resistant, wear-resistant workpieces.
Otai does not act as a material handler. We possess proprietary technology and continuously iterates. We undertake every order to end and solve customer’s problems without any hesitation on responsibility. When customized special steel is hard to get, Otai settles satisfactorily completely.
