Custom Steel Castings Manufacturer
Carbon, Alloy & Stainless Steel Foundry
We can provide you with steel castings in a variety of materials
Carbon steel casting services
- Valve bodies, pump bodies
- Mechanical structural components
- Flanges, supports
- Contact components for construction machinery
- Bridge components
Suitable for applications requiring high structural strength and low cost, it is the most widely used steel casting material.
Alloy steel casting services
- Crusher components
- High manganese steel liners
- Gears
- Power plant equipment components
- High-temperature equipment
Suitable for high-intensity, high-impact scenarios, requiring high wear resistance and high-temperature resistance of components.
Stainless Steel casting services ≥10.5% Cr
- Chemical Valves
- Food Machinery
- Marine Equipment
- Medical Equipment
- Pumps
Suitable for highly corrosive and clean environments, requiring high corrosion resistance and oxidation resistance of components.
Commonly used cast steel material grades
Carbon steel grades
Alloy steel grades
Stainless Steel grades
Our steel castings conform to ASTM, EN, and ISO international standards. Material certifications, chemical composition reports, mechanical testing, and full traceability are available upon request.
Application industries
Mining
- Frame support
- Arm connector
- Wheel bearing housing
- Gearbox housing
- High-strength connecting rod
- Hydraulic cylinder body
- Low-corrosion hydraulic components
- Precision valve body
and more
Construction
- Support frame
- Bucket wheel excavator frame
- Standard pump body
- Crusher liner
- High manganese steel crusher teeth
- Conveyor shaft
and more
Oil & Gas
- Pressure vessel structural components
- High-temperature boiler tube fittings
- Thermal power plant valve bodies
- Gas turbine components
- Chemical pipeline valve bodies
- Seawater cooling pump bodies
- Petrochemical pump casings and shafts
and more
OEM sample display
Produced exactly according to your requirements
Custom duplex stainless steel castings
Custom stainless steel castings
Custom wear-resistant castings
Custom carbon steel castings
Custom alloy steel castings
Custom high carbon steel castings
Custom precision steel castings
Custom large steel castings
We are ISO 9001:2015 certified and hold numerous industry-specific certifications. We offer a wide range of casting services, from high-precision prototyping to high-volume production. Our goal is: reliable delivery, flawless execution, and building long-term trust.
Our casting capabilities
We have 13 years of experience in casting and machining steel castings. Our factory offers consistent melting point control, alloy composition certification, and rigorous hardness and microstructure testing to ensure high strength and consistency in our products. Leveraging advanced precision machining technology, we provide reliable OEM solutions for cast steel parts to industries such as mining, agricultural machinery, oil and gas, and heavy industry.
With strong engineering support, we provide DFM analysis, 3D modeling, casting simulation, and material selection optimization. Our team helps improve structure, reduce weight, and enhance wear resistance while controlling production cost and ensuring manufacturability.
We offer full OEM/ODM customization based on drawings or samples, including alloy adjustment, hardness control, heat treatment, and surface finishing. Flexible production planning allows small batches and large-scale orders with stable quality.
Equipped with advanced CNC machining centers, we ensure tight tolerances and consistent dimensional accuracy. We provide drilling, milling, tapping, surface treatment, and sub-assembly services to deliver ready-to-install components.
Quality assurance
Using direct-reading spectrometers, we verify the chemical composition of each melt before casting. Analysis and verification ensure precise control of elemental contents such as carbon, manganese, silicon, Cr, and Mo, conforming to ASTM, EN, or ISO standards. This prevents segregation, reduces casting defects, and ensures stable mechanical properties during mass production.
Tensile strength, yield strength, elongation and impact values are tested in accordance with international standards. Test specimens are cast from the same batch to reflect real production conditions. This ensures the aluminum castings meet structural and safety requirements, providing customers with reliable load-bearing performance and long-term durability.
We use calipers, measuring instruments, and coordinate measuring machines (CMMs) for full-dimensional inspection. Critical tolerances are verified according to customer drawings and GD&T requirements. This ensures assembly compatibility, reduces machining corrections, and guarantees consistency in the mass production of various steel castings.
We perform X-ray (RT), ultrasonic (UT), dye penetrant (PT) or magnetic particle testing when required. These methods detect internal shrinkage, gas porosity and hidden cracks without damaging the product. NDT enhances reliability for safety-critical components such as automotive housings and pressure-containing parts.
We control T5/T6 heat treatment to ensure stable strength and dimensional accuracy. Surface treatments are checked for thickness, adhesion, and corrosion resistance, including salt spray testing, ensuring durability and long-term reliability.
Brinell (HB) or Rockwell hardness tests are conducted to verify material consistency and heat treatment effectiveness. By comparing surface and core hardness values, we ensure uniform metallurgical structure. This guarantees wear resistance, machining stability, and performance reliability in demanding industrial environments.
Complete chemical, mechanical, microstructure, and dimensional test reports provided for traceability.
Our steel castings undergo rigorous quality inspections including chemical analysis, heat treatment verification, dimensional inspection, hardness and tensile testing, and non-destructive testing (MT, PT, UT, RT) to ensure compliance with ASTM, EN, and GB standards. Full inspection reports and material certificates are provided for every order.
Goods delivery guarantee
Provide comprehensive protection for castings
On-Time Delivery
With 13 years of production management experience, we implement strict scheduling and capacity planning to ensure stable lead times. From raw material preparation to casting, machining, and inspection, each stage is controlled under a standardized workflow. Real-time production tracking and dedicated project coordination help us respond quickly to changes and deliver orders on schedule.
Reliable Packaging
We use export-standard packaging solutions tailored to product size and weight, including fumigated wooden crates, steel pallets, rust-proof coating, VCI protection, and customized inner supports. Each package is reinforced to prevent movement, corrosion, or impact damage during long-distance transportation, ensuring parts arrive in perfect condition.
Logistics Reliability
We cooperate with experienced freight forwarders and offer flexible shipping options by sea, air, or rail. Clear export documentation, accurate labeling, and cargo tracking ensure smooth customs clearance and timely arrival. Our logistics team monitors every shipment and provides updates to guarantee dependable global delivery.
Regarding cooperation with Mulan Metal in metal parts casting business
Delivery time for standard castings is 3-4 weeks.Delivery time for precision castings is 4-8 weeks.
Are you trading company or manufacturer ?
We are original manufacturers, and of course, we also provide trade services. Because we have the qualifications for export trade.
Is material certification provided?
All raw materials come with MTC (material report), and of course we also support third-party testing (SGS/BV). Don’t worry about this, because we are engaged in cross-border trade business, and the certificates and qualifications are complete.
What are your trading methods?
EXW、FOB、CFR、CIF、FCA、DDU、DDP
How about your delivery time?
Mold Design: 2–5 days
Tooling: 8–10 days
Samples: 3–5 days
Mass Production: 4–8 weeks, Special customized products may require a few days earlier or later depending on the quantity and processing complexity.
Does the quotation include mold fees, freight and tariffs?
We will provide itemized quotations (such as mold fees, unit costs, and logistics costs) according to customer requirements.
Will the OEM products be sold to the third party?
Without the authorization of the customer, we will never do this, so we support the signing of NDA agreement to ensure your interests.
You can contact us by email, phone or the form below. Of course, it is recommended that you provide us with complete cooperation information, such as casting prototype drawings, process requirements, material requirements, application scenarios, tolerance requirements, quantity and more, so that we can quickly provide you with a specific quotation and solution within 12 hours.
Contact US
We will be happy to help you with your casting, extrusion and forming work on a wide range of metals.
Head Quarter：Building 37, 2049 Pujin Road, Shanghai
E-mail：mulanmetal@mulan-mfg.com
Business Talk：+86-21-3479-1662
- Original Manufacturer
- 12+ years of custom casting manufacturing
- ISO 9001:2015 quality standard certified
- Free 2D/3D Design Drawing