SAE/AISI 5150 Alloy Steel (UNS G51500)
SAE/AISI 5150 is a chromium alloy steel that is commonly used in a variety of applications due to its excellent combination of strength, toughness, and hardenability.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 97.29% | 97.97% |
| Carbon | 0.48% | 0.53% |
| Chromium | 0.70% | 0.90% |
| Manganese | 0.70% | 0.90% |
| Phosphorous | 0.035% | |
| Silicon | 0.15% | 0.30% |
| Sulfur | 0.04% | |
The following table provides a list of SAE/AISI 5150 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7850 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 675 MPa |
| Tensile Strength (Yield) | 360 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 197 |
| Thermal Properties | Metric |
| Thermal Conductivity | 46.6 W/m·K |
| Specific Heat Capacity (Cp) | 470 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.3×10-5 1/°C |
| Electrical Properties | Metric |
| Electrical Conductivity | 4.18×106 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 5150 Alloy Steel
| Advantages | Disadvantages |
|---|---|
| High strength and toughness | Limited corrosion resistance |
| Good wear resistance | Relatively low hardenability |
| Suitable for applications with heavy loads or shock | Limited weldability |
| Good machinability | Prone to distortion during heat treatment |
| Cost-effective compared to some high-end alloy steels | Requires proper heat treatment for optimal properties |
| Good impact resistance |
Applications of 5150 Alloy Steel
AISI 5150 steel, with its high strength, toughness, and good wear resistance, finds applications in various industries. Here are some common applications of 5150 steel:
- Automotive Industry: 5150 steel is used in the manufacturing of various automotive components such as gears, shafts, axles, and crankshafts.
- Machinery and Equipment: This steel grade is utilized in the production of machinery and equipment parts that require high strength and durability.
- Springs: 5150 steel is often employed in the production of mechanical springs due to its good spring properties and high strength.
- Tools and Tooling Components: Due to its good machinability and wear resistance, 5150 steel is used in the manufacturing of various tools and tooling components.
- Construction and Infrastructure: In certain construction and infrastructure applications, 5150 steel can be used for heavy-duty components that require high strength and toughness.
- Agricultural Equipment: The agricultural industry utilizes 5150 steel for components like agricultural machinery parts, tillage tools, and harrow discs.