For our full range of products and services, choose the relevant catalogue.
Cast Iron Supplier
Partner with Kormax: Your Cast Iron Bar Stock Supplier
When you’re looking for cast iron material suppliers, Kormax offers an engineered range of bar stock profiles, including round bars, square bars, rectangular bars, and custom-cut sections. We supply both 3D Ductile Cast Iron and 4E Cast Iron Bar grades, helping customers select the right cast iron for general machining, wear resistance, strength, and dimensional stability.
Combining high strength and machinability, 3D ductile cast iron is available in a wide range of grades and is suitable for the manufacture of hydraulic components, gears, rollers, pump and valve parts, machinery components, and other precision-machined engineering applications.
4E Cast Iron Bar offers superior machinability, vibration damping, and dimensional stability for machine bases, pump components, bearing housings, and tooling.
Whether you need standard cast iron bar stock, custom-cut components, or ongoing material supply, Kormax delivers reliable engineered materials backed by technical expertise, consistent specifications, and dependable sourcing.
Our engineering team can recommend the most suitable material based on your performance requirements and manufacturing process. Contact our team to discuss your project and identify the right cast iron parts supplier or solution.
Cast iron is supplied across New Zealand. Grey and ductile iron (3D and 4E) are available in machinable round bar, 40–400 mm.
Explore Our Cast Iron Grades
Kormax offers engineered cast iron materials for machining, wear-critical components, and structural equipment. Our range includes 3D Ductile Cast Iron and 4E Cast Iron, with technical guidance available to help you select the most suitable grade for your use.
| 3D Ductile Cast Iron 🔗 | Offers high durability, toughness, and impact resistance for hydraulic components, gears, rollers, pump and valve parts, and other industrial machined components. |
| 4E Cast Iron 🔗 | Outstanding machinability, vibration damping, and wear resistance for machine bases, bearing housings, pump and valve components, tooling, fixtures, and gearbox housings. |
Benefits of Kormax’s Cast Iron
Kormax cast iron bar stock is available in grades selected for strength, wear resistance, vibration damping, and machining performance. The range includes materials engineered for dimensional stability and reliable performance across heavy-duty engineering environments.
We work with leading cast iron suppliers and partners to deliver quality-assured components built to withstand real-world demands. Our team can assist with material selection, custom-cut requirements, and ongoing supply programs, giving you access to the right cast iron grade while simplifying the procurement process.
Advantages of Kormax Cast Iron for General Machining
| Superior Wear Resistance | Kormax cast iron bar stock offers strong wear resistance for machined components exposed to friction, abrasion, and repeated mechanical contact. |
| High Compressive Strength | As cast iron material suppliers, our products offer reliable compressive strength for high-load parts used in machinery, equipment, construction, and infrastructure projects. |
| Vibration Damping | Cast iron’s natural damping properties help reduce vibration and noise in machined components, making it valuable for equipment bases, housings, and mechanical systems. |
| Good Machinability | Kormax supplies cast iron grades selected for machinability, helping customers achieve efficient production, consistent finishes, and reliable dimensional control. |
| Cost-Effective Material | Cast iron offers dependable performance at a competitive material cost, making it a practical option for repeat production and general machining requirements. |
ISO-Certified Supplier of Cast Iron Bar Stock (Round, Square, and Flat)
Kormax is an ISO 9001, ISO 14001, and ISO 45001-certified cast iron supplier, providing cast iron bar stock in round bar, square, flat, and custom-cut profiles are available on indent terms. For customers searching for the best cast gray iron supplier, Kormax offers gray iron and ductile iron grades selected for general machining, wear resistance, vibration damping, dimensional stability, and compressive strength.
Our cast iron bars are ready for machining or further processing, depending on your application. We support standard and custom sizes, reliable supply options, and shorter lead times where available, giving customers a practical material supply partner for ongoing production and project-based requirements.
Need a Finished Cast Part Rather Than Bar Stock?
Kormax also coordinates custom cast iron components through our global network of qualified partners. If your project requires a finished casting manufactured to your drawings rather than cast iron bar stock for machining, explore our specialist casting solutions below.
| Casting Type | Typical application |
| Cast Iron Casting | General-purpose gray and ductile iron castings for machinery, equipment, pumps, housings, and industrial components. |
| Ductile Iron Casting | High-strength, impact-resistant components for heavy machinery, transport, mining, and infrastructure parts. |
| White / Wear-Resistant Iron Casting | Abrasion-resistant castings for mining, cement, aggregate processing, slurry pumps, and material handling equipment. |
| Heat-Resistant Iron Casting | Components designed for elevated-temperature service, including furnace equipment, kilns, exhaust systems, and thermal processing. |
| Austenitic Ductile Iron Casting | Corrosion- and heat-resistant castings for marine, chemical processing, power generation, and rigorous industrial environments. |
Why Choose Kormax as Your Cast Iron Material Supplier for General Machining
Expert Advice
Managed by engineers and metallurgy specialists, Kormax provides practical guidance on cast iron grade, profile selection, and machining requirements to support reliable manufacturing outcomes.
Unique Range
Kormax currently only supplies cast iron bar stock in round bar to New Zealand, while sourcing on demand the completed range of square, flat, and custom-cut profiles, helping customers source the right material for general machining and engineered requirements.
Global Partnerships with Our Top-Tier Supply Network
Kormax partners with a global network of qualified partners and material producers, selecting the most suitable manufacturing partner based on quality, capability, availability, and project requirements.
Supply Security
Supply programs can include safety stock, blanket purchase orders, and dual-source arrangements to improve continuity, reduce supply risk, and support long-term production requirements.
Quality Management
Kormax operates an integrated management system certified to ISO 9001, ISO 14001, and ISO 45001, supporting consistent quality, environmental management, and workplace safety throughout the supply process.
Competitive Pricing
Multi-partner sourcing allows Kormax to achieve the strongest overall value with our engineered materials solutions. Each project balances material quality, availability, lead time, and total cost so you are not locked into a single cast iron supplier.