Carbon steels are a category of steels with 0.12 to 2% carbon content. AISI 1045 is a medium carbon steel designed to be able to function in areas requiring greater strength and hardness. This steel possesses excellent size accuracy, concentricity, and straightness which together enable to minimize wear in high speed applications. AISI 1045 can be formed into turned, ground and polished bars that can be machined unsymmetrically with limited distortion.

The following sections will discuss in detail about AISI 1045 carbon steel.

Chemical Composition

The chemical composition of AISI 1045 carbon steel is outlined in the following table.

Physical Properties

The physical properties of AISI 1045 carbon steel are tabulated below.

Mechanical Properties

The following table shows mechanical properties of cold rolled AISI 1045 carbon steel.

Thermal Properties

The thermal properties of cold drawn AISI 1045 carbon steel are given in the following table.

Other Designations

Other designations that are equivalent to AISI 1045 carbon steel include the following.

Fabrication and Heat Treatment

Heat Treatment

AISI 1045 carbon steel can be heat treated using flame and induction hardening.

Forging

AISI 1045 carbon steel can be hammer forged.

Applications

The following are the application areas of AISI 1045 carbon steel:

• Bolts
• Studs
• Gears
• Axles
• Shafts
• Machine parts.