Grey Cast Iron SAE J431 Grade G3500 (UNS F10007)
SAE J431 Grade G3500 is a type of gray cast iron that is used in a variety of applications, including automotive, heavy machinery, and construction.
| Chemical Composition | ||
|---|---|---|
| Element | Min | Max |
| Iron | Remainder | |
| Carbon | 3.0% | 3.3% |
| Manganese | 0.60% | 0.90% |
| Phosphorus | 0.12% | |
| Silicon | 1.8% | 2.2% |
| Sulfur | 0.15% | |
The following table provides a list of SAE J431 Grade G3500 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) | ≥ 241 MPa |
| Brinell Hardness | 207 - 255 |
| Knoop Hardness Converted from Brinell | 257 |
| Vickers Hardness Converted from Brinell | 243 |
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 G3500
| Advantages | Disadvantages |
|---|---|
| High tensile strength (minimum 35,000 psi) | Brittle material |
| Good wear resistance | Susceptible to cracking under stress |
| Excellent machinability | Limited ductility |
| Good thermal conductivity | Relatively high material density |
| Cost-effective material | Prone to oxidation and rust if not treated |
Applications of Iron SAE J431 Grade G3500
Iron SAE J431 Grade G3500 is commonly used in various automotive applications due to its specific mechanical properties and characteristics. Here are some typical applications of Iron SAE J431 Grade G3500:
- Engine Blocks: G3500 grade cast iron is often used for manufacturing engine blocks due to its high tensile strength, good wear resistance, and excellent machinability.
- Cylinder Heads: Cylinder heads, which sit on top of the engine block, are responsible for sealing the combustion chambers and housing the intake and exhaust valves. G3500 cast iron is suitable for cylinder heads due to its strength, durability, and heat dissipation properties.
- Brake Components: Cast iron brake components, such as brake calipers, rotors, and drums, benefit from the high tensile strength and wear resistance of G3500 grade cast iron. These parts endure high mechanical stress and require materials that can withstand heat and friction.
- Transmission Housings: Iron SAE J431 Grade G3500 is also used for manufacturing transmission housings. Transmission housings enclose the gears, shafts, and other components of the vehicle's transmission system, requiring a material with good strength and stiffness.
- Suspension Parts: Some suspension components, such as control arms and steering knuckles, may be manufactured using G3500 grade cast iron. These parts need to withstand heavy loads and impacts while providing stability and durability.
- Other Automotive Components: G3500 cast iron may be utilized in various other automotive applications, including exhaust manifolds, crankshafts, camshafts, and structural supports. Its properties make it suitable for components that require strength, wear resistance, and thermal stability.