Grey Cast Iron SAE J431 Grade G3000 (UNS F10006)
SAE J431 Grade G3000 is a type of gray cast iron that is used in a variety of automotive applications, including cylinder blocks, cylinder heads, flywheels, and differential carrier castings.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | Remainder | |
| Carbon | 3.1% | 3.4% |
| Manganese | 0.60% | 0.90% |
| Phosphorus | 0.15% | |
| Silicon | 1.9% | 2.3% |
| Sulfur | 0.15% | |
The following table provides a list of SAE J431 Grade G3000 properties in both SI and US customary/Imperial units.
Click on the icon to switch between Metric and Imperial units.
| Physical Properties | Metric |
|---|---|
| Density | 7150 kg/m3 |
| Mechanical Properties | Metric |
| Tensile Strength (Ultimate) | ≥ 207 MPa |
| Brinell Hardness | 187 - 241 |
| Knoop Hardness Converted from Brinell | 238 |
| Vickers Hardness Converted from Brinell | 225 |
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 Iron SAE J431 Grade G3000
| Advantages | Disadvantages |
|---|---|
| High thermal conductivity | Relatively low tensile strength |
| Good wear resistance | Susceptible to cracking under severe stress |
| Excellent damping properties | Prone to thermal expansion and contraction |
| Cost-effective | Brittle nature makes it susceptible to impact |
| Good machinability | Limited corrosion resistance |
| Compatible with various manufacturing processes | Heavyweight compared to some alternatives |
Applications of Iron SAE J431 Grade G3000
Iron SAE J431 Grade G3000 is commonly used in various automotive applications, particularly in the manufacturing of brake rotors and drums. Its specific properties make it suitable for these components. Here are some key applications of Iron SAE J431 Grade G3000:
- Brake Rotors: Iron SAE J431 Grade G3000 is widely utilized in the production of brake rotors for passenger cars and light trucks.
- Brake Drums: This cast iron grade is also employed in the manufacturing of brake drums. Brake drums provide a braking surface for the brake shoes to press against, generating friction and stopping the vehicle.
- Disc Brake Hubs: Iron SAE J431 Grade G3000 is utilized in the production of disc brake hubs. These hubs house the brake rotor and provide a mounting point for the wheel.
- Industrial Machinery: In addition to automotive applications, Iron SAE J431 Grade G3000 can be used in various industrial machinery components. Its cost-effectiveness, good machinability, and wear resistance make it suitable for applications such as gearboxes, engine blocks, and hydraulic systems.