KT METAL CASTING LOGO

Custom Iron Castings

Leading Iron Casting Manufacturer & Foundry
KT Metal Casting is a professional cast iron foundry specializing in custom-engineered iron casting solutions for diverse industrial applications. As an experienced iron casting manufacturer, we deliver precision-cast components tailored to your exact specifications.


Our cast iron foundry combines decades of metallurgical expertise with modern manufacturing technology to produce high-quality cast iron castings that meet the most demanding performance requirements.
A metal furnace filled with fire and smoke, used for sand casting processes in metalworkingA man operates a large furnace in a factory, surrounded by metal castings and industrial equipment

Our Iron Casting Capabilities

MAIN PRODUCTS
industrial counterweights made by kt metal castingsA stack of various metal parts, including iron components, arranged together in a disorganized mannerA black anvil resting on top of a larger iron anvil, showcasing the contrast between the two materialsA cast iron valve with a sleek black finish, showcasing its sturdy design and industrial aesthetic

Custom Grey Iron Casting

KT Metal Casting specializes in grey iron casting for applications requiring excellent wear resistance, vibration damping, and thermal conductivity.

Grey iron casting remains one of the most versatile materials in the iron casting industry, offering superior machinability and cost-effectiveness for a wide range of components.

Our cast iron foundry expertise in grey iron casting ensures consistent quality across all custom iron casting projects, from simple geometries to complex configurations.

The graphite flake structure in grey iron casting provides exceptional damping properties, making these cast iron castings ideal for machine bases, engine blocks, and precision equipment housings.

Grey Iron Casting Grades We Produce

Our cast iron foundry manufactures a comprehensive range of grey iron casting grades to match your specific application requirements. We produce Class 20 grey iron for light-duty applications with good machinability, Class 30 for general engineering cast iron castings, and Class 40 for moderate stress applications.

For demanding applications requiring superior wear resistance, we offer Class 50 and Class 60 grey iron casting grades.

Ductile Iron CastingA black iron manhole cover featuring a hole in the center, set against a concrete surfaceOverhead view of a circular iron wheel, showcasing its metallic texture and structural designIron casting featuring a central hole designed for a bolt

Custom Ductile Iron Casting

Our cast iron foundry produces high-quality ductile iron casting components that combine exceptional strength with superior ductility.

Ductile iron casting offers mechanical properties approaching those of steel while maintaining the casting advantages and cost benefits of iron casting processes.

As a dedicated ductile iron casting manufacturer, we create custom iron casting components that withstand demanding applications while maintaining excellent machinability and impact resistance.

Our ductile iron casting process produces cast iron castings with nodular graphite structures that deliver superior tensile strength and elongation properties.

Ductile Iron Casting Grades Available

Our cast iron foundry offers multiple ductile iron casting grades to optimize performance for your specific application. The 60-40-18 ferritic grade provides maximum ductility and impact resistance, while 65-45-12 ferritic-pearlitic cast iron castings balance strength and ductility.

For higher strength requirements, we produce 80-55-06 pearlitic ductile iron casting and 100-70-03 high-strength iron casting grades. We also manufacture Austempered Ductile Iron (ADI) for applications demanding exceptional strength-to-weight ratio.

Green Sand Casting Process

Our cast iron foundry utilizes advanced green sand casting technology to manufacture custom iron casting products with precision dimensional accuracy for complex designs. Green sand casting, the most widely used iron casting process worldwide, offers unmatched versatility and cost-effectiveness for cast iron castings manufacturing.


The green sand casting method employed at our cast iron foundry uses a mixture of sand, clay, and water to create molds that can be used immediately after forming. This process allows our iron casting facility to maintain short lead times while producing high-quality cast iron castings with excellent dimensional consistency.

Our green sand system is continuously recycled and reconditioned, making it an environmentally responsible iron casting manufacturing choice. The sand is mechanically and thermally treated to remove impurities and restore its binding properties, maintaining consistent cast iron castings performance while minimizing waste.
Sand casting factory focused on custom steel casting, showcasing industrial architecturekt metal casting factorycustom steel casting by KT metal castingscustom bore configurations with specialized keyways

Why Choose KT Metal Castings?

Dual Expertise in Ductile and Grey Iron Casting

Our dual expertise in both ductile iron casting and grey iron casting provides clients with comprehensive material options to suit diverse application requirements. Whether your project demands the toughness of ductile iron casting or the damping properties of grey iron casting, our cast iron foundry delivers consistent quality and reliable performance.

This versatility means you can work with a single iron casting manufacturer for multiple cast iron castings needs, streamlining your supply chain and ensuring consistent quality standards across different material specifications. Our cast iron foundry team provides expert guidance on material selection based on your specific performance requirements and operating conditions.

Personalized Custom Iron Casting Manufacturing

At KT Metal Casting, every product is manufactured to order. We don't maintain inventory or produce standard catalog items. Instead, our cast iron foundry works directly with your design requirements to create custom iron casting components that perfectly match your application needs.

Our iron casting engineering team brings extensive experience in design for manufacturability, helping clients optimize their cast iron castings designs for both performance and production efficiency. We provide valuable insights on wall thickness, draft angles, parting line location, and other critical factors that influence iron casting quality and cost.

Direct Communication and Responsive Service

Communication is a cornerstone of our service philosophy. Unlike larger iron casting manufacturers where projects can become lost in bureaucracy, our cast iron foundry maintains direct channels between clients and our engineering and production teams. This transparency ensures that questions are answered promptly and any concerns are addressed immediately.

Our responsive approach means you'll work with knowledgeable team members who understand your custom iron casting project from start to finish. Whether you need technical guidance on grey iron casting versus ductile iron casting, production updates, or problem-solving support, our cast iron foundry staff is accessible and committed to your project's success.

client visited kt metal casting foundry

Complimentary Testing Service

Quality assurance you can trust. After production of your cast iron castings, we randomly select samples for comprehensive testing at no additional cost to you.

Composition Analysis

Spectrometric testing ensures precise alloy composition of your iron casting meets your specifications.

Dimensional Accuracy

CMM and precision measurement verify that all cast iron castings meet required tolerances and geometric accuracy.

Mechanical Properties

Tensile, hardness, and impact testing confirm strength and performance characteristics of grey iron casting and ductile iron casting products.

Defect Detection

Ultrasonic and radiographic inspection identifies internal flaws in cast iron castings before shipping.
A person using a spray gun to clean the steel casting product, promoting a complimentary testing service for effective cleaning solutionsA person using a tool to shape a piece of metal, showcasing a complimentary testing service in actionA man in a lab coat operates a machine, promoting a complimentary testing service

Industries We Serve

Our iron casting manufacturer capabilities support diverse sectors where custom iron casting components are essential.

In the automotive industry, our cast iron foundry produces engine blocks, transmission housings, brake components, and suspension parts. These cast iron castings meet stringent quality and performance standards required by automotive manufacturers worldwide.
A photograph of a large green and yellow John Deere tractor working through vast fields of mature soybean crops in the American Midwest

Agricultural

Agricultural machinery manufacturers rely on our cast iron foundry for durable cast iron castings that withstand harsh operating environments. From tractor components to implement parts, our ductile iron casting and grey iron casting products deliver the reliability that farming operations demand.
A detailed technical photograph of a large industrial gate valve made of weathered steel and cast iron

Industrial

Industrial equipment builders partner with our iron casting facility for custom iron casting pump housings, valve bodies, gear cases, and machinery frames. Our cast iron castings manufacturing expertise ensures that these critical components maintain dimensional stability and structural integrity under demanding service conditions.
A photograph of a massive yellow construction crane towering against a clear blue sky

Construction

The construction industry depends on our grey iron casting and ductile iron casting capabilities for hardware components, structural connectors, and equipment parts. Our cast iron foundry understands the safety-critical nature of these applications and maintains rigorous quality assurance protocols for all iron casting projects.

Global Shipping & Logistics

Our cast iron foundry ships custom iron casting products to customers across the globe. We understand that reliable logistics are essential to your production schedules.

Export Packaging 

All cast iron castings are carefully packaged for international shipment with custom wooden crates for heavy iron casting components, corrosion-preventive coatings for ocean freight, and shock-absorbing materials for precision grey iron casting and ductile iron casting parts. Clear labeling and documentation ensure smooth customs clearance.

A truck loaded with wooden boxes containing iron casting parts, parked on a construction site
A photograph of a freight train loading shipping containers at an industrial rail yard

Shipping Options

We offer flexible delivery options for your custom iron casting orders. Sea freight provides cost-effective shipping for large-volume cast iron castings orders, while air freight enables expedited delivery for urgent iron casting requirements.

Rail transport offers an economical option for continental shipments, and door-to-door service provides complete logistics management from our cast iron foundry to your location.

Lead Time Commitment

Our cast iron foundry maintains transparent communication throughout production and shipping.

You receive real-time production updates for all custom iron casting projects, proactive notification of any schedule changes, tracking information for all cast iron castings shipments, and a dedicated logistics coordinator for complex iron casting orders.

A photograph of a diverse Chinese customer support team working collaboratively in a modern office environment

What Our Clients Say

A casual selfie photograph of a man named David Thompson taken at arm's length with a smartphone camera
Working with KT Metal Casting's factory has been a game-changer for our product development cycles. Their ability to accommodate design changes during the prototype phase, combined with their fast turnaround on custom castings, has accelerated our time-to-market.

The ductile iron components they manufacture for our automotive applications have passed every quality test, and their pricing remains competitive. We couldn't ask for a better foundry partner.
David Thompson
VP of Operations
A smartphone selfie photograph of an Asian woman named Jennifer Wong with a warm, genuine smile looking directly at the camera
We switched to KT Metal Casting after quality issues with our previous supplier, and the difference has been remarkable. Their factory's quality control standards are evident in every casting we receive.

The engineering support during the design phase helped us avoid potential manufacturing issues, and their willingness to work with us on material selection saved us considerable costs. They truly understand what it means to be a manufacturing partner, not just a vendor.
Jennifer Wong
Chief Engineer, Construction Equipment Corp
A casual selfie photograph of a middle-aged man named Robert Anderson taken with a smartphone camera
For our machine tool components, we need grey iron castings with excellent damping properties and precise dimensional accuracy. KT Metal Casting has delivered on both fronts consistently.

Their foundry's green sand casting process produces superior surface finishes that reduce our post-casting machining time. After three years of partnership, they've earned our complete trust as our primary iron casting supplier.
Robert Anderson
Manufacturing Director, Precision Machine Tools

Frequently Asked Questions

KT Metal Casting specializes in two primary types of custom iron castings: ductile iron casting and grey iron casting. Our foundry utilizes green sand casting technology to produce both materials to exact customer specifications. As an experienced iron casting manufacturer, we can guide you in selecting the optimal material based on your application requirements, whether you need the superior strength and ductility of ductile iron or the excellent wear resistance and damping properties of grey iron.

No, KT Metal Casting operates exclusively on a custom manufacturing basis. We do not maintain any stock inventory or produce standard catalog items. Every casting produced at our foundry is manufactured specifically to your design specifications and requirements. This custom-only approach allows us to focus entirely on meeting your unique engineering needs without the constraints of standardized dimensions, and ensures that our manufacturing resources are dedicated to your active project.

Green sand casting is a versatile and cost-effective foundry process that uses a mixture of sand, clay, and water to create molds. Our factory uses this method because it offers excellent flexibility for custom manufacturing, maintains short lead times, and produces high-quality iron castings with consistent dimensional accuracy. The "green" refers to the moisture content in the sand, not the color. As a modern green sand casting foundry, we combine traditional craftsmanship with advanced equipment and quality control methods to ensure optimal results for every custom casting project.

Ductile iron casting offers superior strength, toughness, and ductility compared to grey iron, with mechanical properties that can rival steel. Our ductile iron manufacturer capabilities produce components ideal for applications subjected to shock loads, impact, or cyclic stresses. Grey iron casting, on the other hand, excels in applications requiring excellent machinability, vibration damping, wear resistance, and thermal conductivity. Our foundry team can help you determine which material best suits your specific application based on operating conditions, load requirements, and performance expectations.

Lead times for custom iron castings vary depending on project complexity, casting size, quantity, and whether new patterns need to be created. The green sand casting process used at our factory allows for relatively short production cycles compared to other casting methods. During the initial consultation, our foundry team will provide a realistic timeline based on your specific project requirements. We pride ourselves on efficient project management and maintaining clear communication throughout the manufacturing process to keep your project on schedule.

CONTACT

contact Us
by email or form
Please feel free to contact us.
Email: [email protected]
We will response your inquiries within 48 hours.
Office: Weifang City, Shandong Province, China.
©︎ 2025 KT METAL CASTINGS Inc.
We Are Here To Help!
Get A Free Quote Within 48 Hours!
two men work in a warehouse on sand casting, with a fan providing airflow in the background