EN-GJS 400-15 / 500-7 Ductile Iron Bars | Spheroidal Graphite Iron
Product Introduction
EN-GJS 400-15 / 500-7 Ductile Iron Bars are high-performance cast iron products manufactured in compliance with European standards, specifically designed for applications requiring high strength, good ductility, and superior machinability. These bars are produced with a spheroidal graphite microstructure, which offers remarkable tensile properties and impact resistance, making them a versatile choice for structural and mechanical applications.
The EN-GJS series is particularly appreciated in Europe for offering a range of strength and elongation combinations. EN-GJS 400-15 is characterized by excellent ductility and toughness, whereas EN-GJS 500-7 provides higher strength while maintaining adequate flexibility. These ductile iron bars are suitable for components that undergo repetitive stress, vibration, or moderate impact. Their machinability makes them ideal for both roughing and precision finishing operations.
- ductile iron bars are manufactured in accordance with international standards.The commonly used steel grades of ductile iron bars are expressed in different ways according to different countries and standards.
The following are the commonly used ductile iron steel grades (grades) under several common standard systems:
| ASTM A536 | EN 1563 | ISO 1083 | JIS G5502 |
| 60-40-18 | EN-GJS-400-15 | GGG40 | FCD400 |
| 65-45-12 | EN-GJS-450-10 | - | FCD450 |
| 80-55-06 | EN-GJS-500-7 | GGG50 | FCD500 |
| 100-70-03 | EN-GJS-600-3 | GGG60 | FCD600 |
Product Description
Ductile iron bar is a material that improves its mechanical properties by adding spheroidizing agents such as magnesium or cerium to cast iron to form graphite into a spherical structure. In terms of chemical composition, the main components of ductile iron are iron, carbon, silicon, as well as manganese, phosphorus, sulfur and other elements. The addition of spheroidizing agents such as magnesium or cerium is key, which promotes the formation of a spherical structure in graphite.
Product parameters
| Product Name | Ductile Iron Bar/Ductile Iron Round Bar |
| Standard | ASTM A536 EN 1563 ISO 1083 JIS G5502 |
| Outer Diameter (OD) | 20 mm – 600 mm (customizable) |
| Length | 1 m – 6 m (customizable) |
| Tensile Strength | 400 – 800 MPa |
| Yield Strength | 250 – 500 MPa |
| Hardness | 130 – 280 HB |
| Heat Treatment | annealed, normalized, or quenched and tempered |
| Surface Condition | As-cast / Machined / Peeled |
| Elongation | 2% – 18% |
| Delivery status | Round bar/square bar/ flat bar or cut to demand |
Product Applications
EN-GJS ductile iron bars are used in a broad spectrum of industries, including:
> Mechanical parts such as gears, pulleys, and shafts
> Structural components in industrial machinery
> Valve bodies and hydraulic manifolds
> Automotive brackets and differential housings
> Lifting and rigging hardware
> Agricultural machinery parts
Product Display
Inspection and packaging drawings
| Keywords
EN-GJS ductile iron bar, precision machined SG iron, EN-GJS 400-15 round bar, EN-GJS 500-7 cast iron rod, nodular graphite iron bar, European standard ductile iron