SAE/AISI 1045 Carbon Steel (UNS G10450)
SAE/AISI 1045 steel is known for its high tensile strength and toughness. It can be heat treated to achieve desired mechanical properties such as increased hardness, strength, and wear resistance.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 98.51% | 98.98% |
| Carbon | 0.42% | 0.50% |
| Manganese | 0.60% | 0.90% |
| Phosphorous | 0.04% | |
| Sulfur | 0.05% | |
The following table provides a list of SAE/AISI 1045 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7870 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 565 MPa |
| Tensile Strength (Yield) | 310 MPa |
| Young’s Modulus (E) | 200 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 16% |
| Poisson’s Ratio (ν) | 0.29 |
| Brinell Hardness | 163 |
| Thermal Properties | Metric |
| Thermal Conductivity | 52 W/m·K |
| Specific Heat Capacity (Cp) | 470 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.15×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 4.1×106 S/m |
| Electrical Resistivity | 2.4×10-7 Ω·m |
The values in this table are approximate and can vary depending on various factors such as the specific manufacturing process and heat treatment applied to the alloy.
Advantages & Disadvantages of 1045 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Good Strength and Toughness | Limited Hardenability |
| Cost-Effective | Lower Impact Strength |
| Good Machinability | Limited Elevated Temperature Performance |
| Good Weldability | Lower Wear Resistance |
Applications of 1045 Carbon Steel
1045 carbon steel finds numerous applications across various industries due to its desirable properties. Here are some common applications of 1045 carbon steel:
- Shafts and Bearings: 1045 steel is commonly used for manufacturing shafts and bearings due to its high strength, good hardness, and wear resistance.
- Gears and Sprockets: The high strength and toughness of 1045 carbon steel make it suitable for gears and sprockets used in power transmission systems. It can withstand the stresses and loads associated with gear meshing and provides good wear resistance.
- Machine Components: 1045 steel is widely employed for manufacturing machine components such as bolts, nuts, studs, and axles. Its machinability, combined with its strength and toughness, makes it ideal for producing parts that require high mechanical performance.
- Tooling and Dies: 1045 carbon steel is used for tooling and die applications that require moderate strength and wear resistance. It can be hardened to enhance its surface hardness and wear properties, making it suitable for forming, cutting, and stamping operations.
- Automotive Parts: Many automotive components are made from 1045 steel, including crankshafts, camshafts, connecting rods, and various structural parts. Its combination of strength, toughness, and machinability makes it valuable for automotive applications.
- Construction Machinery: 1045 carbon steel is utilized in the construction industry for manufacturing heavy machinery and equipment components. It is commonly used in applications such as excavator parts, crane components, and hydraulic cylinders.
- General Engineering: Due to its versatility and availability, 1045 steel is employed in various general engineering applications. It can be found in structures, frames, brackets, and other mechanical parts where strength and reliability are required.
- Hand Tools: 1045 carbon steel is used to manufacture hand tools like hammers, wrenches, chisels, and punches. It offers good strength and toughness, making the tools capable of withstanding high impact and heavy-duty applications.
- Agricultural Equipment: Farm machinery, including plows, harrows, and tillage equipment, often incorporates 1045 steel. Its strength and toughness enable the equipment to withstand the demanding conditions encountered in agricultural operations.