High-Strength Steel Casting Components Built for Demanding Applications
Steel castings are renowned for their exceptional strength, excellent toughness, and outstanding wear resistance. They are widely used in industries such as agricultural machinery, mining equipment, construction machinery, metallurgical equipment, and pumps and valves, serving as reliable core components capable of withstanding demanding operating conditions.
High-Strength Steel Casting Components Built for Demanding Applications
Steel castings are renowned for their exceptional strength, excellent toughness, and outstanding wear resistance. They are widely used in industries such as agricultural machinery, mining equipment, construction machinery, metallurgical equipment, and pumps and valves, serving as reliable core components capable of withstanding demanding operating conditions.
High-Strength Steel Casting Components Built for Demanding Applications
Matech Industry specializes in the custom manufacturing of carbon steel, alloy steel, and stainless steel components. We offer a comprehensive range of manufacturing services, investment casting, lost wax casting, sand casting, CNC machining, surface treatment, and heat treatment. We can deliver high-quality steel components from blank forming to finished product delivery. Whether you require a single prototype for testing or bulk production, we can bring your design concepts to life through our professional technical expertise, over 15 years of manufacturing experience, and proven quality control processes, while ensuring on-time delivery and consistent quality.
Why Choose Matech for Steel Castings & Precision Machining?
Cast steel components involve high melting temperatures, complex alloy compositions, and stringent heat treatment requirements. If a supplier lacks the capability to control the entire manufacturing process, quality issues often do not appear until the final production stage, making it difficult to ensure delivery reliability and resulting in significant losses.
Matech Industry Ltd. integrates core processes such as casting, heat treatment, CNC precision machining, and surface treatment, all is managed under a rigorous quality management system (ISO 9001 certified). From rough casting to precision machining and quality control, we complete the entire manufacturing process under one factory. Simply provide us with your drawings or samples, and our engineering team will manage the entire process, including:
· Process evaluation
· Material recommendations
· Casting solution design
· Machining process optimization
· Dimensional and quality control
· Final packaging and delivery
This enables us to provide more consistent quality, higher production efficiency, and more reliable delivery guarantees.
Our Steel Casting & Machining Process
Raw Material Inspection
We strictly control the chemical composition and mechanical properties of steel ingots and various alloy materials. All raw materials are inspected and traceable in accordance with international standards such as ASTM, AISI, DIN, JIS, and GB. Through spectroscopic analysis, hardness testing, and pre-furnace composition re-inspection,we ensure that every batch of material is consistent and reliable.
Melting and Casting
Depending on the complexity of the product structure, performance requirements, and production volume, we flexibly select the most suitable process solution, including sand casting, investment casting, or lost wax casting, to achieve the optimal balance of cost, dimensional accuracy, and mechanical performance.
Sand Removal, De-gating and Cleaning
After solidification, the castings undergo professional sand removal, gate cutting, and riser removal processes. Surface oxide layers and residual molding sand are removed through shot blasting and grinding. This process not only improves the surface quality of the castings, but also provides a stable foundation for subsequent heat treatment and machining.
Shot Blasting
Steel castings are processed through controlled shot blasting to remove residual molding materials and surface impurities generated during the casting process. In addition to improving surface cleanliness and appearance, shot blasting enhances dimensional consistency, removes surface tensile stress from the casting, and prepares the casting for downstream heat treatment, CNC machining, and surface finishing processes.
Heat Treatment
Through processes such as normalizing, annealing,
quenching, and tempering, the mechanical properties of the steel are precisely controlled to enhance strength, hardness, toughness, and wear resistance. For the same alloy material, heat treatment can increase hardness from approximately 200 HBW in the as-cast condition to over 500 HBW, thereby meeting the demands of high-load operating conditions.
quenching, and tempering, the mechanical properties of the steel are precisely controlled to enhance strength, hardness, toughness, and wear resistance. For the same alloy material, heat treatment can increase hardness from approximately 200 HBW in the as-cast condition to over 500 HBW, thereby meeting the demands of high-load operating conditions.
CNC Precision Machining
With more than 50 imported CNC machining centers, CNC lathes, and gantry machining systems, we are capable of high-precision machining for complex components. Critical dimensional tolerances can be controlled within ±0.005 mm, ensuring that all dimensional and geometric tolerances strictly comply with customer drawings and specifications.
Deburring, Cleaning and Pre-treatment
We combine manual finishing with automated equipment to precisely remove machining burrs, sharp edges, and residual particles, and thoroughly clean oil and metal debris from the surface, preparing the components for subsequent surface treatment and assembly.
Surface Treatment
Depending on the product’s application environment and customer requirements, we provide a variety of surface treatment solutions, including sandblasting, electroplating, powder coating, phosphating, black oxide treatment, Dacromet coating, and anti-corrosion coatings, to enhance corrosion resistance and improve surface appearance.
Full-Dimensional Inspection and Quality Control
We are equipped with advanced inspection equipment, including coordinate measuring machines (CMM), spectrometers, surface roughness testers, hardness testers, and various custom inspection tools.We perform 100% inspection of critical dimensions and can conduct non-destructive testing (NDT), such as ultrasonic testing (UT), magnetic particle testing (MT), and penetrant testing (PT), according to project requirements, ensuring that every delivered product meets the specifications, tolerances, and industry standards defined in the drawings.
Packaging and Global Shipping
To accommodate different transportation methods and international market requirements, we provide professional rust-proof and customized packaging solutions, along with complete material certificates, inspection reports, and export documentation. Supported by our established global logistics network, we ensure that products are delivered safely and on schedule to customers worldwide.
Steel Castings & Machining Products
This Flange Pipe is a critical connecting component designed for industrial piping systems, fluid transmission networks, and structural connections requiring reliable sealing and corrosion resistance.
This Nozzle is a precision flow control component designed for high‑temperature combustion systems, burners, thermal processing equipment, and corrosive fluid spraying applications.
This Steel Flange Connector is a critical joining component designed for high‑pressure piping systems, fluid transmission lines, and structural connections in industrial applications.
This Steel Bearing Housing is a robust mounting component designed for heavy‑duty conveyor systems, industrial gearboxes, and rotating machinery. It is manufactured by our in‑house Lost‑Wax Casting (Investment Casting) + CNC precision machining process.
Applicable Scenarios
Our steel castings and precision machining services are widely used in the following industries:
Transmission components, structural frames, and Connectors
Sprockets,wear-resistant parts,and mixer blades
Mill rollers and heat-resistant steel castings
Support brackets, hydraulic housings, gearbox housings, and bearing housings
High-pressure valve bodies, pump casings, impellers, flanges, and pipe fittings
Engine mounts, chassis mounts, transmission forks, steering knuckle forks, and exhaust manifolds
Corrosion-resistant alloy steel castings, high-temperature and high-pressure valve bodies, pipe fittings, and special flange components
Gears, bearing housings, connectors, and industrial equipment frames
Our Service Process
From request to delivery, every step is clear and transparent
Ready to Start Your Project?
Let us customize your metal component solutions. No matter which industry you are in, Matech’s engineering team is ready to discuss the most suitable solutions for you.
Steel Casting & Precision Machining Capabilities
We organize our steel casting and machining services into four key areas based on our customers’ core needs, covering every step from raw materials to finished products.
Core Process of Steel Castings
Based on the complexity of your product structure, batch requirements, dimensional accuracy and performance requirements, MATECH will recommend the most suitable casting solution for your, based on 15+ years experience of casting and manufacturing capabilities, to achieve the best balance between cost, accuracy, strength, and production efficiency.
MATECH's precision investment casting process focuses on making small and medium types alloy steel and stainless steel castings (with high precision, complex shapes, and high surface quality requirements). This process adopts a complete process of wax molding, silica sol shell making, dewaxing, baking, and casting pouring. The casting dimensional accuracy can reach CT4-6 level, and the surface roughness can reach Ra 3.2-6.5 μm.
Process Advantages
① High dimensional accuracy, reducing machining allowance
② Excellent surface quality and good consistency in appearance
③ Can achieve the formation of complex inner cavities and thin-walled structures
④ Suitable for stainless steel and high alloy materials
⑤ Suitable for mass production of small and medium types precision parts
Typical applications: stainless steel valve body, pump impeller, precision mechanical parts, automotive exhaust manifold and turbine housings, aerospace structural components.
Process Advantages
① High dimensional accuracy, reducing machining allowance
② Excellent surface quality and good consistency in appearance
③ Can achieve the formation of complex inner cavities and thin-walled structures
④ Suitable for stainless steel and high alloy materials
⑤ Suitable for mass production of small and medium types precision parts
Typical applications: stainless steel valve body, pump impeller, precision mechanical parts, automotive exhaust manifold and turbine housings, aerospace structural components.
Lost wax casting (water glass process) is essentially a type of investment casting. It's based on a meltable wax mold, and uses water glass as a binder to make a refractory shell; after dewaxing and baking, a mold cavity is formed; and finally molten metal is poured. We can achieve one-time molding of complex inner cavities and thin-walled structures, with high material utilization and dense organizational structure. It's suitable for precision steel parts (with complex structures, thin walls, and requiring to reduce machining allowances).
Process Advantages
① Suitable for complex irregular and thin-walled structures
② Significantly reduce material waste and machining allowance
③ Castings can get dense structure and stable mechanical properties
④ Short production cycle, suitable for projects that require fast delivery
⑤ Low cost and simple process, suitable for large-scale production
Typical applications: valves, pipes, brackets, agricultural tools, other mechanical components and hardware parts.
Process Advantages
① Suitable for complex irregular and thin-walled structures
② Significantly reduce material waste and machining allowance
③ Castings can get dense structure and stable mechanical properties
④ Short production cycle, suitable for projects that require fast delivery
⑤ Low cost and simple process, suitable for large-scale production
Typical applications: valves, pipes, brackets, agricultural tools, other mechanical components and hardware parts.
MATECH's sand casting production line focuses on making medium to large castings, with materials of carbon steel, low-alloy steel, and wear-resistant steel; especially it's suitable for large industrial components with complex structures and high stress requirements. By using high-quality molding sand and resin sand, combining with high-precision wooden molds, aluminum molds or other metal molds for molding, we can ensure the strength and dimensional stability of the castings.
Process Advantages
① Suitable for medium to large complex structural castings
② Can achieve the production of high-strength and wear-resistant materials
③ Low mold cost, suitable for multi-specifications customization
④ Suitable for small to large production needs
⑤ Can produce ultra large heavy-duty structural components
Typical applications: support seat, hydraulic housings, gearbox housing, bearing seat, large bracket
Process Advantages
① Suitable for medium to large complex structural castings
② Can achieve the production of high-strength and wear-resistant materials
③ Low mold cost, suitable for multi-specifications customization
④ Suitable for small to large production needs
⑤ Can produce ultra large heavy-duty structural components
Typical applications: support seat, hydraulic housings, gearbox housing, bearing seat, large bracket
Related Cases
Our client is a U.S.-based automotive modification and after-sales service manufacturer specializing in high-performance racing engine modification, and serving professional racing teams and performance enthusiasts.
A globally top-three ranked European agricultural machinery manufacturer encountered a critical bottleneck in the development of its core high-speed grape harvester. The harvester's efficient operation relies entirely on a precise chain-type transmission mechanism, whose reliability in power transmission and motion execution hinges on a set of core link components.
Our partner is a Philippines-based integrated hazardous waste management company, offering one-stop services including hazardous waste collection, incineration, secure landfill and road transportation, with a total daily processing capacity of 6,000 tons.
Our client is a leading designer for special equipment, headquartered in Europe, known for creating high-end special equipment designs and customized advanced equipment solutions.
Frequently Asked Questions
1
What casting processes does Matech primarily offer for steel castings?
We offer a range of processes including sand casting, investment casting, and lost-wax casting. Sand casting is suitable for medium-to-large carbon steel and alloy steel structural components, with a maximum weight capacity of 500 kgs. Investment casting and lost-wax casting are ideal for small-to-medium-sized stainless steel and alloy steel castings that require high precision and complex geometries.
2
Can you produce according to customer-specified international material standards?
Yes. Our production complies with international standards including ASTM, AISI, DIN, EN, JIS, and GB, covering carbon steel, alloy steel, wear-resistant steel, stainless steel, and heat-resistant steel. We supply material test reports and support third-party inspection upon request.
3
How do you control defects such as porosity, shrinkage cavities, and cracks in steel castings?
We optimize the casting process using simulation software, rigorously control melting and pouring temperatures, and perform non-destructive testing based on customer requirements, including X-ray (RT), ultrasonic testing (UT), magnetic particle testing (MT), or penetrant testing (PT), to ensure internal quality.
4
What heat treatment capabilities does Matech offer?
We offer a full range of heat treatment services, including normalizing, annealing, quenching and tempering (QT), solution treatment, carburizing, and nitriding. These processes can increase hardness from approximately 200 HBW in the as-cast condition to over 500 HBW. Hardness and metallographic reports are provided.
5
Do you support small-batch or single-unit custom production?
Yes. Sand casting is suitable for small-batch customization, while precision investment casting is more ideal for medium-to-large batch production. For new product development or sample validation, we can utilize 3D-printed wax mold for casting or full CNC machining. Please contact us for more details.
6
What surface treatment solutions does Matech offer?
We offer a comprehensive range of surface treatments tailored to specific service environments, including sandblasting, painting, zinc plating, chrome plating, Dacromet coating, powder coating, black anodizing, and stainless steel passivation. Compared to standard zinc plating, Dacromet provides significantly superior corrosion resistance, achieving over 800 hours in salt spray testing without the risk of hydrogen embrittlement. This makes it particularly suitable for high-strength components and demanding operating conditions.
7
Which industries and regions do Matech's products primarily serve?
Our steel castings and precision-machined components are extensively used across the vehicle, agricultural machinery, mining, cement, metallurgy, construction machinery, pump and valve, petrochemical, and general industrial equipment sectors. We export to Europe, North America, Australia, the Middle East, Southeast Asia, and other regions, and have established long-term partnerships with international industrial equipment manufacturers.
8
Cast steel parts are prone to sand burn-on defects. How is this resolved in production?
High-temperature molten steel easily reacts chemically or mechanically penetrates the molding material, leading to sand burn-on. To resolve this, high-refractoriness synthetic silica sand is typically used to make the mold, and specialized coatings made of silica powder or zircon flour are applied to the cavity surface. Furthermore, dry molds or quick-drying molds (such as CO2-cured sodium silicate sand molds) are often used to enhance the surface strength and heat resistance of the mold.
9
What aspects do your engineers usually inspect for investment casting parts?
Our engineers will inspect the dimensional tolerances, shape and weight, surface roughness, and surface and near surface defects of the castings. If the customer has specific requirements, adjustments will be made according to the specific situation.
10
What are the different names for the manufacturing process of cast steel parts?
Investment casting, lost wax casting(water glass casting).
11
What types of sand are typically used for water glass shell formation?
They can be quartz sand or quartz powder (domestic).
12
Could you explain the water glass shell molding process in detail?
Degreasing the mold; applying surface coating and sanding; natural drying before hardening; chemical hardening; drying after hardening; (applying reinforcement coating and sanding; chemical hardening; drying after hardening; repeat steps in parentheses multiple times) Melting/dewaxing; baking the mold shell.
13
How is wax removed in water glass casting?
Water glass dewaxing equipment: Boil water, then place in water for dewaxing.
14
What is the shell-burning furnace equipment used in water glass casting?
The shell-burning furnace operates on coal and reaches a temperature of 900 degrees Celsius.
15
What are the detailed procedures for pouring in water glass casting?
Time: 2–5 days (existing materials can be poured directly; otherwise, a separate furnace charge is required) Charge preparation → Furnace analysis (spectral analysis) → Melting → Pouring.
Contact Us
Contact us now! Our technical team and mechanical engineers are ready to provide one-stop support for your project from requirement review, quotation to delivery.
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E-mail: ma@matechin.com
Tel: 0086 21 56076732
Mobile Phone: 0086 13818971637
Address: 1st Floor, Building 8, No. 868 Xinge Road, Xinqiao Town, Songjiang District, Shanghai, China
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