ADI castings for high-strength, wear-resistant performance with reduced weight

ADI castings deliver high strength, fatigue resistance, and wear durability without the weight or cost of steel. Milson produces austempered ductile iron components engineered for high-impact and high-stress applications across agriculture, mining, and industrial markets.

    Why choose ADI?

    Austempered ductile iron combines steel-like toughness with the efficiency and design freedom of ductile iron casting. Through a specialized heat treatment process, ADI delivers high performance in parts exposed to shock, abrasion, or cyclical stress.

    Icons Layers Coating Smooth 01

    High wear and fatigue resistance achieved through controlled austempering

    Icons Weight Heavy

    High tensile and yield strength with lower weight compared to steel components

    Icons Geometic Form Complex

    Good machinability with reliable dimensional stability after heat treatment

    Icons Flash Impact

    Low distortion and strong impact resistance under demanding loads

      Milson Product Bracket Castings Cast Steel or Ductile Iron

      Where ADI is used

      ADI castings are used in applications that require strength, toughness, and reduced part weight. Milson casts ADI components to meet defined mechanical requirements across heavy industries.

      Applications include components exposed to impact, abrasion, and cyclic loading:

      • Tillage tools and linkage components in agriculture
      • Mining housings, brackets, and impact-prone components
      • Suspension arms, hubs, and brake parts in automotive and off-road equipment
      • Chassis elements and underbody parts for heavy machinery
      • Industrial parts subject to repetitive load cycles

       

      ASTM A897 mechanical properties

      ADI is produced in multiple grades with defined mechanical properties under ASTM A897. These grades provide strength, wear resistance, and elongation characteristics suited to different load conditions.

       Tensile Strength 
      (KSI)      		Yield Strength 
      (KSI)      		Elongation 
      (%)      		Hardness, typical 
      (HBW)
      Grade 1130909269-341
      Grade 21501007302-375
      Grade 31751254341-444
      Grade 42001552388-477
      Grade 52301851402-512

       

        Complete ADI production capabilities

        We produce ADI using controlled casting and austempering processes to ensure consistency, strength, and metallurgical accuracy. Every step is managed in-house to reduce risk and increase part reliability.

        Casting design and engineering

        Design and pattern solutions to optimize ADI part strength and wear performance.

        View casting design
        Sand and shell mold casting

        Flexible processes for small to large ADI components with reliable results.

        View sand casting
        Short-run prototyping

        Rapid prototyping to validate design and fatigue performance before scaling.

        View prototyping
        Machining and finishing

        Fully finished, assembly-ready parts with tight tolerances.

        View machining
        Quality assurance

        Full QA, traceability, and compliance support

        View quality assurance
        Milson Quality CNC CMM Probe Machined Steel

        Where ADI delivers

        ADI is trusted in industries that demand high-strength, wear-resistant parts capable of replacing steel. We support OEMs and operators with ADI components that extend service life and reduce weight.

        Agriculture
        Wear-resistant ADI tillage tools and linkage parts built for soil, rock, and grit.

        Mining and minerals
        High-strength housings, brackets, and impact-prone parts with long wear life.

        Automotive and off-road
        Suspension and drivetrain components combining strength with weight savings.

        Industrial manufacturing
        Parts subject to repetitive load cycles with extended fatigue resistance.

        Let's solve your casting challenges

        If you’re designing an ADI component or solving a performance challenge, our engineers provide clear guidance, fast feedback, and practical solutions.

        Milson Team 04