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Ductile Iron Sand Casting Construction Parts are the backbone of infrastructure projects, offering the perfect blend of strength, ductility, and cost-effectiveness for heavy-duty structural applications.
Chifine
Ductile iron—also known as nodular cast iron—combines the castability of gray iron with the toughness of steel, making it ideal for components subjected to static and dynamic loads. Produced via sand casting, these parts include manhole covers, pipe fittings, bridge bearings, and structural brackets, each engineered to meet ISO 1083 and ASTM A536 standards. Our construction castings provide long-term durability in harsh outdoor environments, resisting corrosion, impact, and extreme temperature variations.
Exceptional Mechanical Properties: ISO 1083 Grade 600-3 ductile iron offers a tensile strength of 600 MPa, yield strength of 370 MPa, and 3% elongation, balancing strength with flexibility to absorb shocks.
Corrosion Resistance: A naturally forming oxide layer provides inherent corrosion resistance, with optional epoxy coatings extending service life to 50+ years in buried or submerged applications.
Cost-Effective Production: Sand casting enables large, complex shapes (up to 2 meters in diameter) at 20–30% lower cost than fabricated steel, with minimal secondary machining required.
Thermal & Acoustic Insulation: Ductile iron’s high damping capacity reduces noise transmission by 15–20 dB compared to steel, making it suitable for urban infrastructure.
These parts are vital to construction and infrastructure:
Underground Utilities: Manhole covers, valve boxes, and pipe flanges withstand traffic loads up to 400 kN (EN 124 Class D400) and prevent groundwater infiltration.
Bridges & Highways: Expansion joints, bearing plates, and guardrail posts accommodate thermal expansion and seismic movements.
Building Structures: Column bases, beam connectors, and anchor bolts provide structural support in commercial and industrial buildings.
Water & Wastewater: Pump housings, valve bodies, and sewage treatment plant components resist chemical corrosion from effluents.
Q: How does ductile iron compare to steel for structural parts?
A: Ductile iron offers similar strength to mild steel but with better castability, corrosion resistance, and vibration damping, at a 10–15% lower material cost for complex shapes.
Q: What load ratings do your manhole covers support?
A: We produce covers meeting EN 124 Class B125 (125 kN) for pedestrian areas up to Class F900 (900 kN) for airport runways and heavy industrial zones.
Q: Can ductile iron parts be welded or machined on-site?
A: Yes, ductile iron is weldable using nickel-based electrodes (AWS A5.15 ENiFe-C1) and machinable with standard tools, allowing for on-site modifications during installation.
| grey cast iron, ductile cast iron, steel, stainless steel, brass, copper, bronze, aluminum, zinc etc |
process | sand casting, precision casting ,die casting |
Surface finishment | polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing. |
certificate | ISO9001 |
Quality level | casting standards :CT6-CT9 grade,and fit for ISO.DIN,ANSI,BS,JIS,GB standards.etc. |
Service | OEM service available |
Measurement | CMM,2D projector,caliper,surface rough tester,customized gauge,etc. |
Surface finishing | Powder coating, chrome plating,electrophoresis, zinc plating, shot blasting,sand blasting |
Main export market | Eastern Europe |
Ductile iron—also known as nodular cast iron—combines the castability of gray iron with the toughness of steel, making it ideal for components subjected to static and dynamic loads. Produced via sand casting, these parts include manhole covers, pipe fittings, bridge bearings, and structural brackets, each engineered to meet ISO 1083 and ASTM A536 standards. Our construction castings provide long-term durability in harsh outdoor environments, resisting corrosion, impact, and extreme temperature variations.
Exceptional Mechanical Properties: ISO 1083 Grade 600-3 ductile iron offers a tensile strength of 600 MPa, yield strength of 370 MPa, and 3% elongation, balancing strength with flexibility to absorb shocks.
Corrosion Resistance: A naturally forming oxide layer provides inherent corrosion resistance, with optional epoxy coatings extending service life to 50+ years in buried or submerged applications.
Cost-Effective Production: Sand casting enables large, complex shapes (up to 2 meters in diameter) at 20–30% lower cost than fabricated steel, with minimal secondary machining required.
Thermal & Acoustic Insulation: Ductile iron’s high damping capacity reduces noise transmission by 15–20 dB compared to steel, making it suitable for urban infrastructure.
These parts are vital to construction and infrastructure:
Underground Utilities: Manhole covers, valve boxes, and pipe flanges withstand traffic loads up to 400 kN (EN 124 Class D400) and prevent groundwater infiltration.
Bridges & Highways: Expansion joints, bearing plates, and guardrail posts accommodate thermal expansion and seismic movements.
Building Structures: Column bases, beam connectors, and anchor bolts provide structural support in commercial and industrial buildings.
Water & Wastewater: Pump housings, valve bodies, and sewage treatment plant components resist chemical corrosion from effluents.
Q: How does ductile iron compare to steel for structural parts?
A: Ductile iron offers similar strength to mild steel but with better castability, corrosion resistance, and vibration damping, at a 10–15% lower material cost for complex shapes.
Q: What load ratings do your manhole covers support?
A: We produce covers meeting EN 124 Class B125 (125 kN) for pedestrian areas up to Class F900 (900 kN) for airport runways and heavy industrial zones.
Q: Can ductile iron parts be welded or machined on-site?
A: Yes, ductile iron is weldable using nickel-based electrodes (AWS A5.15 ENiFe-C1) and machinable with standard tools, allowing for on-site modifications during installation.
| grey cast iron, ductile cast iron, steel, stainless steel, brass, copper, bronze, aluminum, zinc etc |
process | sand casting, precision casting ,die casting |
Surface finishment | polishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating, mirror polishing. |
certificate | ISO9001 |
Quality level | casting standards :CT6-CT9 grade,and fit for ISO.DIN,ANSI,BS,JIS,GB standards.etc. |
Service | OEM service available |
Measurement | CMM,2D projector,caliper,surface rough tester,customized gauge,etc. |
Surface finishing | Powder coating, chrome plating,electrophoresis, zinc plating, shot blasting,sand blasting |
Main export market | Eastern Europe |
