CAPABILITY
ADI (Austempered Ductile Iron)
- Supports complex geometries with part weights ranging from 0.5 to 300kg
- Specification all approved by ISO17804、EN1564、ASTM A897M、SAE J2477、JIS G5503、GB/T24733 etc
- Tolerances can be customized as needed to meet demanding applications
- ISO 9001:2015 and IATF 16949:2016 certified manufacturing systems
What is ADI (Austempered Ductile Iron)?

ADI (Austempered Ductile Iron) is a high-performance material created through heat-treating ductile iron. It combines exceptional strength, wear resistance, and toughness, making it ideal for gears, sprockets, and suspension parts.
ADI offers a cost-effective alternative to steel, with similar mechanical properties but reduced weight. Its durability and versatility make it widely used in automotive, mining, agriculture, and construction industries.
Why Choose BNC’s ADI (Austempered Ductile Iron)?

Consistent Chemistry: Guaranteed material uniformity for reliable performance.

High Nodularity: Over 100 nodules/mm² and 85%+ nodularity, enhancing strength and toughness.

Minimal Defects: Combined carbides, inclusions, porosity, and micro-shrinkage kept under 1.5%, ensuring flawless casting integrity.

Optimized Microstructure: Balanced pearlite/ferrite ratio for superior wear resistance and mechanical properties.
Our ADI (Austempered Ductile Iron) Capabilities
At BNC, we push the boundaries of performance with our Austempered Ductile Iron (ADI) solutions, delivering exceptional strength, durability, and efficiency for demanding applications. Combining advanced materials expertise with rigorous quality standards, our ADI components are engineered to exceed industry benchmarks.
- Unrivaled Strength: ADI achieves tensile strengths up to 1,600 MPa with excellent ductility, outperforming traditional ductile iron and approaching the strength of forged steel.
- Superior Wear Resistance With a 40-50% higher wear resistance compared to conventional steel, our ADI components thrive in high-friction environments like mining and construction.
- High Impact Toughness ADI maintains outstanding impact toughness even in extreme conditions, making it ideal for gears, crankshafts, and heavy-duty machinery.
- Unrivaled Strength: ADI achieves tensile strengths up to 1,600 MPa with excellent ductility, outperforming traditional ductile iron and approaching the strength of forged steel.
- Cost Efficiency: By offering a 25-30% weight reduction compared to steel without sacrificing performance, ADI enables significant savings in fuel and material costs.
- Precision and Consistency: With over 85% nodularity and tightly controlled microstructure, BNC’s ADI ensures reliability across every component, even under high pressure and cyclic loads.
How to Order Parts?
1. Request for Quotation
Upload your drawing or email to our engineer directly.
2. Conduct Feasibility analysis
Our engineers will review your requirements and conduct a feasibility analysis.
3. Review and Confirm the Quote
Send you a quotation and wait for your confirmation.
4. Kick off the Project
Mold Order: will begin after confirmation
Sample Order: produced for production approval
5. Start Production
Your production order will be issued once sample approval. Besides, you will get timeline of the production to track.
6. Delivery Your Part
After all parts pass QC inspection, they will be well packed from transportation accidents. Then, your parts are delivered to your specified warehouse.
ADI Applications
Automotive
Industrial Machinery
Shipbuilding industry
Agriculture and Forestry Machinery
Power Generation
Railways
Mining and Drilling Equipment
See why customers dig us
-Andrew Cole, Procurement Manager
-Laura Simmons, Engineering Lead
-Michael Turner, Production Manager
-Sarah Lee, Operations Supervisor
-Sophia Brown, Aerospace Engineer
-James Ward, Head of Engineering
-Laura Simmons, Engineering Lead
-Michael Turner, Production Manager
-Sarah Lee, Operations Supervisor
-Sophia Brown, Aerospace Engineer
-James Ward, Head of Engineering
-Andrew Cole, Procurement Manager
-Michael Turner, Production Manager
-Sarah Lee, Operations Supervisor
-Sophia Brown, Aerospace Engineer
-James Ward, Head of Engineering
-Andrew Cole, Procurement Manager
-Laura Simmons, Engineering Lead
ADI FAQ
What is ductile iron?
Ductile iron, also known as nodular cast iron, is a type of cast iron known for its high strength, toughness, and ductility. The spherical graphite structure gives it enhanced mechanical properties compared to traditional cast iron, making it suitable for heavy-duty applications.
What are the advantages of ductile iron?
Ductile iron offers excellent strength-to-weight ratio, corrosion resistance, and fatigue strength. It is highly machinable and versatile, making it a preferred material for automotive components, construction machinery, and industrial equipment.
Can ductile iron be customized for specific applications?
Yes, ductile iron can be tailored to meet specific needs by adjusting its composition and heat treatment processes. This enables its use in diverse industries, from automotive parts like suspension components to structural supports in construction and power generation systems.
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