SAE/AISI 1025 Carbon Steel (UNS G102500)
SAE/AISI 1025 steel is known for its good machinability, weldability, and formability. It has medium strength and toughness, making it suitable for a variety of applications such as shafts, gears, studs, bolts, and couplings.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 99.03% | 99.48% |
| Carbon | 0.22% | 0.28% |
| Manganese | 0.30% | 0.60% |
| Phosphorous | 0.04% | |
| Sulfur | 0.05% | |
The following table provides a list of SAE/AISI 1025 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7858 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | 440 - 500 MPa |
| Tensile Strength (Yield) | 250 - 420 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 15 - 30% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 130 |
| Thermal Properties | Metric |
| Thermal Conductivity | 52 W/m·K |
| Specific Heat Capacity (Cp) | 470 J/kg·K |
| Coefficient of Thermal Expansion (αL) | 1.21×10-5 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 1025 Carbon Steel
| Advantages | Disadvantages |
|---|---|
| Cost-Effective | Limited Hardness |
| Good Balance of Strength and Toughness | Susceptible to Corrosion |
| Good Machinability | Limited Impact Resistance |
| Good Weldability |
Applications of 1025 Carbon Steel
AISI 1025 carbon steel finds applications in various industries and sectors due to its favorable combination of properties. Here are some common applications of AISI 1025 carbon steel:
- Automotive Components: AISI 1025 steel is used for manufacturing various automotive components such as shafts, gears, axles, and crankshafts due to its good strength, toughness, and machinability.
- Fasteners: This steel grade is commonly employed in the production of bolts, studs, nuts, and other fasteners. Its moderate strength and weldability make it suitable for fastening applications.
- Machinery and Equipment: AISI 1025 carbon steel is utilized in the construction of machinery and equipment parts, including machine frames, brackets, couplings, and fittings, thanks to its machinability and moderate strength.
- Construction: Some construction applications that benefit from AISI 1025 steel include structural components like beams, columns, and support structures, where moderate strength and good weldability are desired.
- General Engineering: AISI 1025 steel is employed in various general engineering applications, including the production of shafts, axles, bushings, and general-purpose machine parts that require a combination of strength, toughness, and ease of fabrication.
- Shafts and Rotating Equipment: Due to its good balance of strength and machinability, AISI 1025 steel is suitable for manufacturing shafts used in pumps, motors, and other rotating equipment.
- Agricultural Equipment: Components of agricultural machinery, such as plows, tillers, and harvesters, can be made from AISI 1025 steel due to its strength and cost-effectiveness.
- Tooling and Dies: AISI 1025 carbon steel is occasionally used in the production of tooling and dies, particularly for less demanding applications that don’t require higher alloy or tool steels.