Top Quality Ductile Iron Rectangle Bars Now Available!

Redefine the Value of Cast Iron

Ductile iron Rectangle bar is a high-strength cast iron material developed in the 1950s. Through spheroidization and inoculation treatment, it forms a spherical graphite structure, which completely breaks through the performance limitations of traditional cast iron. Its comprehensive mechanical properties are comparable to steel.

2. Core Advantages

Performance Comparison Table

Advantage Category	Key Features	Data Support
Mechanical Property	High strength & High toughness	Tensile strength: 400-800MPa, Yield strength: 250-500MPa, Elongation: 2%-18%
Machining Efficiency	Easy cutting & High precision	Tool service life increased by 2-3 times, processing time reduced by 50%, power saving over 50%
Green Manufacturing	Low carbon emission	Hydrogen-rich smelting process, carbon emission per ton reduced by over 50%
Cost Performance	Cost-effective	8%-10% lighter than steel, total part cost reduced by 50%, raw material saving 12%-50%

• Pressure Resistance: No leakage with 1mm wall thickness under 35MPa; compressive strength 1-2 grades higher than sand castings
• Fatigue Strength: 40% higher than sand castings, suitable for frequent stress working conditions
• Surface Treatment: Excellent electroplating, coating and carburizing performance, adaptable to complex working conditions