Finding a trustworthy steel casting manufacturer can be challenging—how do you ensure quality, precision, and timely delivery for your industrial components? In this guide, we introduce top steel casting companies in China, their capabilities, and buyer-focused insights to help you make informed decisions. Continue reading to discover which suppliers can meet your specific needs for carbon, alloy, and stainless steel castings, as well as custom OEM and high-performance industrial components.
1. Liaoning Borui Machinery Co., Ltd.
Established: 2019
Headquarters: Dandong, Liaoning, China
Main products & services: Gray iron, ductile iron (SG), carbon & alloy steel castings; sand casting, shell molding, resin sand, CNC machining, heat treatment and surface finishing; export packaging and OEM parts.
Company profile: Liaoning Borui is a full-service steel casting manufacturer specializing in high-quality carbon and alloy steel castings for industrial machinery, construction equipment, valves, pumps, and marine applications. They offer sand casting, shell molding, and resin sand processes along with in-house CNC machining and heat treatment, providing buyers with near-net-shape steel castings ready for assembly. Their experience in precision steel castings ensures consistent dimensional accuracy and surface quality, making them a reliable choice for sourcing durable and high-performance steel castings, including custom OEM parts, large machinery components, and complex structural castings.
2. Ningbo Qianhao Metal Product Co., Ltd.
Established: 2012
Headquarters: Ningbo, Zhejiang, China
Main products & services: Carbon steel, alloy steel, stainless steel, and ductile iron castings; sand casting, investment casting, shell molding, CNC machining, heat treatment, surface finishing, and complete assembly services.
Company profile: Ningbo Qianhao Metal Product Co., Ltd. is a professional steel casting manufacturer providing a comprehensive range of services from casting to finished assembly. They specialize in high-quality carbon and alloy steel castings for pumps, valves, automotive components, construction machinery, and industrial equipment. Qianhao’s capabilities include sand casting, investment casting, shell molding, CNC machining, and heat treatment, ensuring steel castings with precise dimensions, superior surface finish, and excellent mechanical properties. Buyers seeking durable, high-performance steel castings for OEM, custom, or large-scale industrial applications will find Qianhao an ideal partner, with expertise in producing complex geometries, tight-tolerance components, and turnkey casting solutions.
3. Qingdao Rinborn Machinery Co., Ltd.
Established: 1999
Headquarters: Qingdao, Shandong, China
Main products & services: Sand casting, investment (lost-wax) casting, shell molding, lost-foam casting, precision forging, CNC machining, heat treatment and surface finishing; ferrous and non-ferrous alloys.
Company profile: Rinborn specializes in high-precision steel casting solutions for automotive components, pump housings, valve bodies, and industrial machinery parts. They provide both investment casting and sand casting of carbon steel, alloy steel, and stainless steel with tight tolerances and excellent surface finishes. Their full-service approach includes CNC machining, heat treatment, and post-processing, allowing buyers to source finished or near-finished steel castings. For procurement professionals seeking reliable custom steel castings, Rinborn’s expertise ensures scalable production, high dimensional accuracy, and reduced secondary machining costs for complex steel casting projects.
4. JC Casting
Established: 1997
Headquarters: Dongying, Shandong, China
Main products & services: Investment (lost-wax) casting, sand casting, die casting, precision CNC machining, tooling, heat treatment, testing and assembly across iron, steel, stainless and non-ferrous alloys.
Company profile: JC Casting is an exporter-focused steel casting manufacturer specializing in complex geometries and precision investment castings. They produce high-quality carbon steel, alloy steel, and stainless steel castings for automotive, machinery, and pump industries. Their services include lost-wax casting, sand casting, CNC machining, and heat treatment, allowing buyers to obtain near-finished steel castings with tight tolerances and excellent surface finishes. JC Casting is suitable for procurement of custom steel castings, low-to-medium volume orders, and applications requiring durable, high-performance castings with reduced post-processing requirements.
5. Dandong Fuding Engineering Machinery Co., Ltd.
Established: 1958
Headquarters: Dandong, Liaoning, China
Main products & services: Gray iron, ductile iron, low-alloy & special steel castings; pump and valve bodies, automotive & construction castings, machining, heat treatment, and complete casting-to-assembly solutions.
Company profile: Dandong Fuding is a heavy steel casting supplier with decades of experience producing large and complex carbon steel, alloy steel, and ductile iron castings. Their products include pump housings, valve bodies, automotive components, and industrial machinery parts. The company provides comprehensive services from steel casting, heat treatment, CNC machining, to final assembly, ensuring dimensional accuracy, surface quality, and structural reliability. Buyers seeking durable, high-performance steel castings for construction, agricultural, or industrial applications will benefit from Dandong Fuding’s experience, advanced casting processes, and capability to handle large-scale, custom steel casting projects.
6. Jiangsu Shengrong Casting Foundry
Established: 2003
Headquarters: Suzhou, Jiangsu, China
Main products & services: Carbon steel, alloy steel and ductile iron castings; sand casting, shell molding, CNC machining, heat treatment, and surface finishing services for industrial machinery and automotive applications.
Company profile: Jiangsu Shengrong is a professional steel casting manufacturer specializing in high-precision sand and shell mold castings. Their portfolio includes carbon steel and alloy steel castings for pumps, valves, construction machinery, and industrial equipment. Buyers benefit from Shengrong’s in-house machining and heat treatment capabilities, ensuring that steel castings are delivered with consistent dimensional accuracy and superior surface quality. Ideal for procurement of medium to large structural steel castings and custom OEM parts, Shengrong focuses on durable, high-performance steel castings suitable for heavy-duty applications.
7. Dawang Metals Pte. Ltd.
Established: 2010
Headquarters: Shanghai, China
Main products & services: Carbon steel, alloy steel, stainless steel and ductile iron castings; investment casting, sand casting, lost-foam casting, CNC machining, heat treatment, and surface finishing.
Company profile: Dawang Metals specializes in custom steel castings for industrial machinery, automotive components, and pump & valve applications. They provide precision investment casting and lost-foam casting for complex geometries, reducing the need for secondary machining. With in-house heat treatment, CNC machining, and finishing services, buyers can source ready-to-assemble steel castings with tight tolerances and excellent surface quality. Dawang Metals is suitable for procurement professionals seeking reliable steel casting manufacturers capable of handling both small and medium production runs.
8. Dongying Hengke Precision Metal Co., Ltd.
Established: 2005
Headquarters: Dongying, Shandong, China
Main products & services: Alloy steel, carbon steel and stainless steel castings; precision sand casting, investment casting, CNC machining, heat treatment, and quality inspection services for industrial and automotive parts.
Company profile: Dongying Hengke is a precision steel casting manufacturer offering high-quality sand and investment castings for pumps, valves, machinery components, and structural steel parts. Their in-house CNC machining, heat treatment, and inspection services ensure that steel castings meet tight dimensional tolerances and strict quality standards. Buyers seeking durable, high-performance steel castings with reduced post-processing requirements will find Hengke’s solutions ideal for OEM and industrial applications, including complex or customized steel casting projects.
9. CFS Machinery Co., Ltd.
Established: 2008
Headquarters: Qingdao, Shandong, China
Main products & services: Carbon steel, alloy steel and ductile iron castings; sand casting, shell molding, lost-foam casting, CNC machining, heat treatment, and surface finishing for industrial machinery and construction equipment.
Company profile: CFS Machinery specializes in high-quality steel castings for construction machinery, pumps, valves, and industrial equipment. Their steel casting capabilities include sand, shell, and lost-foam casting with in-house machining and heat treatment services. Buyers benefit from tight dimensional control, high surface quality, and durable castings suitable for demanding environments. CFS Machinery is ideal for sourcing complex steel castings, custom OEM parts, and large-scale industrial castings where precision and performance are critical.
10. Ningbo Besser Casting Co., Ltd.
Established: 2007
Headquarters: Ningbo, Zhejiang, China
Main products & services: Alloy steel, carbon steel, stainless steel and ductile iron castings; investment casting, sand casting, CNC machining, heat treatment, surface finishing, and assembly services for industrial and automotive applications.
Company profile: Ningbo Besser Casting is a full-service steel casting manufacturer providing high-quality castings for pumps, valves, construction machinery, and automotive components. They specialize in precision investment and sand castings, with in-house CNC machining, heat treatment, and finishing. Buyers seeking custom steel castings, OEM parts, or durable industrial components will benefit from Besser’s capability to deliver high-performance steel castings with consistent dimensional accuracy, excellent surface finish, and long-term reliability.
Buyer Checklist — Quick Questions to Ask Each Foundry
- Which exact factory (address) will do the casting and machining? (ask for pictures.)
- What is your maximum pour weight, typical tolerances and common alloys for my part? (get them in writing.)
- Do you provide material certificates, NDT (MPI/UT), heat-treatment records and CMM reports for series production?
- What are minimum order quantities, lead times for samples and full runs, and sample costs?
- Can they accept third-party inspection or customer witness at key stages? (pre-shipment inspection is highly recommended.)
These questions reduce risk and speed up supplier qualification for Chinese buyers and international procurement teams alike. For general background on steel casting types and processes, Dandong Foundry's product pages and the foundry's technical articles are helpful starting points.
Contact Ningbo Qianhao for Custom Steel Castings
Choosing the right steel casting supplier can significantly impact the quality, cost, and delivery of your industrial components. Ningbo Qianhao Metal Product Co., Ltd. offers professional expertise in carbon, alloy, and stainless steel castings, with full in-house machining, heat treatment, and finishing services. Whether you need custom OEM parts, complex geometries, or high-performance industrial components, Qianhao is ready to provide reliable, high-quality solutions.
For inquiries, quotations, or to discuss your specific steel casting requirements, please contact us today. Our team will work closely with you to ensure your project specifications, tolerances, and delivery schedules are fully met. Don’t compromise on quality—partner with Qianhao for durable, precise, and efficient steel casting solutions.
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