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Ductile cast iron, also known as nodular cast iron, is a type of cast iron that has improved ductility and strength compared to traditional cast iron. It is produced by adding small amounts of magnesium to the molten iron, which alters the structure of the graphite within the metal to form spherical nodules. This unique structure provides ductile cast iron with enhanced mechanical properties, making it suitable for a variety of applications requiring durability and resistance to impact and fatigue.
| Material Composition | Iron, carbon, silicon, manganese, magnesium |
| Tensile Strength | Typically 400 to 900 MPa |
| Yield Strength | Typically 250 to 600 MPa |
| Elongation | Up to 20% in 50 mm |
| Hardness | Typically 200 to 300 HB |
| Standard Grades | EN-GJS-400, EN-GJS-500, EN-GJS-600 |
When selecting ductile cast iron, buyers should consider the specific mechanical properties required for their application, such as tensile strength and hardness. It is also important to specify the appropriate grade based on industry standards, as different grades offer varying performance characteristics. Buyers should inquire about certifications and tolerances to ensure compliance with relevant industry regulations, as well as the quantity needed for their projects.
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Its improved ductility and strength compared to traditional cast iron.
Industries such as automotive, construction, and heavy machinery.
By adding magnesium to molten iron to create spherical graphite nodules.
Used in automotive components, pipelines, and heavy machinery parts.
Common grades include EN-GJS-400, EN-GJS-500, and EN-GJS-600.
Yes, but specific welding techniques and filler materials are recommended.