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AISI 1045 Steel Round Bar Sheet Plate, JIS S45C, DIN C45

AISI 1045 steel is high-quality medium-carbon steel with high strength. It also can be called JIS S45C and DIN C45 steel. It is usually used in normalized condition because of its bad hardenability. It needs to be quenching and tempering treatment to get higher mechanical performance. It is used to manufacture machine parts with high strength requirements. Such as gears, shafts, piston pins, and etc. 1045 Steel round bar sheet plate properties and heat treat as below.

C45 Steel Characteristics

1.It is carbon steel and has great weldability and machinability.
2.After normalized and hot rolled, it will get high strength and impact properties.
3.It has low hardenability and critical hardenability diameter is 12-17mm in the water. And there has a tendency to crack when water quenching.
4.The hydrogen welding and argon arc welding is good for it, but the gas welding is not. It is required to preheat before the welding, and stress relief annealing should be performed after welding.

C45 Steel Application

1045 steel is widely used for the industry application that required higher strength and wear resistance than low-carbon steel. And the typical applications are gears, shafts, rolls, crankshafts, sockets, bolts and etc.

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