Ductile Cast Iron, also known as Nodular Cast Iron or Spheroidal Graphite Iron, is an advanced type of cast iron that offers superior mechanical properties compared to gray cast iron. In this type of cast iron, graphite is distributed in a spherical or nodular form rather than a flake-like structure. This unique graphite distribution significantly enhances the mechanical behavior of the iron, resulting in improved toughness, impact resistance, and ductility.
Ductile cast iron, due to its unique structure, offers features such as high strength, flexibility, and resistance to fracture. Additionally, this type of cast iron has better weldability compared to other types, making it suitable for projects that require the joining of components.
The applications of ductile cast iron are extensive and diverse. One of its most important uses is in the manufacturing of mill rollers, where high pressure and impact resistance are required. In the automotive industry, ductile cast iron is used for producing critical car components such as crankshafts, axles, and other vital parts due to its high strength and toughness. Furthermore, it plays a significant role in the construction of industrial connections and heavy equipment due to its durability and ability to withstand heavy loads.
In general, ductile cast iron, with its combination of superior mechanical properties, high formability, and weldability, is considered a key material in many engineering and infrastructure industries. Its ability to deliver reliable performance in challenging conditions has made it a popular choice for various applications.
Grade | C (%) | Si (%) | Mn (%) | S (%) | P (%) | Mg (%) | Other Elements (%) | Applications |
ISO 1083/400-18 | 3.4-3.8 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | – | Pipes, fittings, automotive parts |
ISO 1083/500-7 | 3.4-3.8 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5, Mo: ≤0.1 | Gears, crankshafts, general machinery |
ISO 1083/600-3 | 3.4-3.8 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5, Mo: ≤0.1 | Engine blocks, wind turbine components |
ISO 1083/700-2 | 3.2-3.6 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5, Mo: ≤0.1 | High-strength automotive parts |
ASTM A536 60-40-18 | 3.2-3.6 | 2.2-2.8 | 0.1-0.3 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5 | Agricultural machinery, structural parts |
ASTM A536 65-45-12 | 3.2-3.6 | 2.2-2.8 | 0.1-0.3 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5 | Hydraulic parts, axles |
ASTM A536 80-55-06 | 3.0-3.6 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5, Mo: ≤0.1 | Heavy-duty machinery, suspension systems |
ASTM A536 100-70-03 | 2.8-3.4 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | Cu: ≤0.5, Mo: ≤0.1 | High-load and high-stress components |
GJS 400-18 | 3.4-3.8 | 2.0-3.0 | ≤0.2 | ≤0.015 | ≤0.05 | 0.03-0.07 | Ni: ≤0.2 | Pressure pipes, machine frames |
GJS 500-7 | 3.3-3.8 | 2.0-2.8 | ≤0.3 | ≤0.015 | ≤0.05 | 0.03-0.07 | Cu: ≤0.3, Ni: ≤0.5 | Automotive and agricultural applications |
GJS 600-3 | 3.2-3.6 | 2.0-2.8 | ≤0.3 | ≤0.015 | ≤0.05 | 0.03-0.07 | Cu: ≤0.3, Ni: ≤0.5 | Axles, gears, machine components |
EN-GJS-400-15 | 3.2-3.8 | 2.2-2.8 | 0.1-0.5 | ≤0.015 | ≤0.08 | 0.03-0.06 | Mo: ≤0.1 | Gas and water pipelines |
EN-GJS-500-14 | 3.3-3.7 | 2.1-2.7 | 0.1-0.4 | ≤0.015 | ≤0.05 | 0.03-0.06 | Cu: ≤0.4 | Mechanical and structural components |
EN-GJS-600-10 | 3.2-3.6 | 2.2-2.8 | 0.1-0.4 | ≤0.015 | ≤0.05 | 0.03-0.06 | Cu: ≤0.3, Mo: ≤0.1 | Heavy-duty machinery components |
Austempered 900-5 | 2.7-3.4 | 1.8-2.5 | 0.5-1.5 | ≤0.015 | ≤0.05 | 0.03-0.06 | Mo: 0.1-0.2, Ni: 1.5-2.5 | Gears, crankshafts |
Austempered 1200-3 | 2.6-3.2 | 1.5-2.0 | 0.5-1.5 | ≤0.015 | ≤0.05 | 0.03-0.06 | Mo: 0.1-0.2, Ni: 1.5-2.5 | High-performance machinery |
Ni-Mo Ductile Iron | 2.8-3.6 | 1.8-2.5 | 0.3-0.6 | ≤0.015 | ≤0.08 | 0.03-0.07 | Ni: 1.5-2.5, Mo: 0.3-0.5 | High-strength, heat-resistant components |
Cu-Ni Ductile Iron | 3.0-3.8 | 2.0-3.0 | 0.2-0.5 | ≤0.015 | ≤0.05 | 0.03-0.07 | Cu: 0.5-1.0, Ni: 0.5-1.0 | High-corrosion applications |
Si-Mo Ductile Iron | 2.5-3.2 | 4.0-5.0 | 0.2-0.5 | ≤0.015 | ≤0.05 | 0.03-0.07 | Mo: 0.5-1.5 | Exhaust manifolds, high-temperature parts |
Sepahan Foolad Atashgah Casting Industries Company, with over 30 years of experience in the casting industry, is committed to self-sufficiency by leveraging skilled personnel and experienced managers. The company proudly serves various industries, including steel, copper, mining, cement, and their related sectors, as well as producing cast iron balls required by different industries.
Isfahan – Najafabad – Najafabad Industrial Park 2 – Sanat Square – Doctor Hesabi Blvd – Sub-corner 28
