SAE/AISI 9260 Alloy Steel (UNS G92600)
SAE/AISI 9260 is a versatile spring steel with good strength, corrosion resistance, hardness, and workability. It is most commonly used in leaf and conical springs, aircraft parts, bridge supports, machine tools, and railway applications.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | 96.085% | 96.89% |
| Carbon | 0.56% | 0.64% |
| Manganese | 0.75% | 1.0% |
| Phosphorous | 0.035% | |
| Silicon | 1.8% | 2.2% |
| Sulfur | 0.04% | |
The following table provides a list of SAE/AISI 9260 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) | 770 - 1525 MPa |
| Tensile Strength (Yield) | 440 - 1149 MPa |
| Young’s Modulus (E) | 190 - 210 GPa |
| Bulk Modulus (K) | 140 GPa |
| Shear Modulus (G) | 80 GPa |
| Elongation at Break | 11 - 22% |
| Poisson’s Ratio (ν) | 0.27 - 0.30 |
| Brinell Hardness | 184 - 235 |
| Electrical Properties | Metric |
| Electrical Conductivity | 4.29×106 S/m |
| Electrical Resistivity | 2.33×10-7 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 9260 Alloy Steel
| Advantages | Disadvantages |
|---|---|
| High strength and hardness | Limited corrosion resistance |
| Excellent toughness and durability | Relatively low wear resistance compared to some other steels |
| Good impact resistance | May require special heat treatment for optimal performance |
| High fatigue resistance | Higher cost compared to lower-grade steels |
| Versatile and widely used for various spring applications | Limited availability in some regions |
Applications of 9260 Alloy Steel
AISI 9260 steel is commonly used in various applications that require high strength, toughness, and excellent spring properties. Here are some common applications of 9260 steel:
- Automotive Springs: AISI 9260 steel is widely used in the manufacturing of automotive suspension components and leaf springs. Its exceptional resilience and ability to withstand high-stress and dynamic loads make it suitable for ensuring proper vehicle handling, stability, and durability.
- Coil Springs: 9260 steel is utilized in the production of coil springs found in various industries, including automotive, machinery, and equipment. Coil springs made from 9260 steel provide reliable performance and long service life, making them suitable for applications such as suspension systems, valves, and clutch springs.
- Tool and Die Springs: Due to its high strength and excellent toughness, AISI 9260 steel is employed in the manufacturing of tool and die springs. These springs are used in applications where repetitive loading and high impact forces are encountered, such as stamping dies, molds, and heavy-duty machinery.
- Agricultural Equipment: 9260 steel is utilized in the construction of springs and components for agricultural equipment. It finds application in machinery such as tractor suspensions, tillage tools, and harvesting equipment, where its ability to withstand heavy loads and resist fatigue is crucial.
- Sword and Knife Making: AISI 9260 steel is favored by some sword and knife makers for its combination of strength, flexibility, and durability. It can be heat-treated to achieve desired hardness levels and is used in the production of blades where the ability to absorb and distribute impact forces is important.
- Industrial Springs: The high strength and fatigue resistance of 9260 steel make it suitable for a wide range of industrial spring applications. These include valves, door latches, garage door springs, heavy machinery springs, and various other components requiring reliable and long-lasting spring properties.