Materials
Steel Parts Manufacturing
CNC Machining Service | Custom steel parts manufacturing
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Steel Parts Manufacturing Services
Allied Metal specializes in steel parts manufacturing, offering a full range of services from material selection to precision machining to surface treatment.
With advanced CNC equipment and an experienced team, we accurately meet complex design requirements, tightly control tolerances, and ensure consistent product performance.
Featuring efficient response and on-time delivery, we provide our customers with reliable and cost-effective steel part solutions to help them stand out from the competition.
Material characteristics of steel
Steel is a common and important metallic material used in a wide range of industrial, construction, manufacturing, and automotive applications.
The following is an introduction to the properties of steel materials：
- High Strength:
Steel is known for its excellent strength and is suitable for industrial parts that are subjected to higher loads. - Good Machinability:
Steel has good machinability and can be cut, welded and shaped in a variety of ways. - Wear resistance:
Steel possesses a certain degree of wear resistance, making it suitable for mechanical parts that require frequent use and friction. - Corrosion resistance (specific types):
Stainless steel types have good corrosion resistance and are suitable for corrosive environments. - Recyclability:
Steel is 100% recyclable and meets the requirements of sustainable development.
Examples of steel parts manufacturing
Steel has important applications in various fields due to its excellent mechanical properties and wide range of uses. The following are common custom machined steel parts.
- Gears
- Bearings
- Pins
- Sprockets
- Connecting rod
- Frame
- Valve cover
- Drive shaft
- Spring holder
- Machine bracket
- Pulley
- Hydraulic cylinder
- Adjusting bolt
- Brake disk
- Clamp
- Guide rail
- Fan blade
- Hydraulic valve body
- Locking ring
- Fasteners (bolts, nuts)
Common types of materials used to make steel parts manufacturing
Includes low carbon, medium carbon and high carbon steels, widely used in construction and general mechanical engineering.
Contains elements such as chromium and nickel for better corrosion resistance and is commonly used in food, chemical and medical fields.
Specific alloying elements are added to enhance specific properties, such as heat resistance, toughness and strength, and are commonly used for high loads and extreme environments.
With high hardness and wear resistance, they are used in molds and cutting tools.
Type | Characteristics | Strength | Corrosion Resistance | Common Grade Codes | Application Fields |
Carbon Steel | High strength, low cost | Medium | Low | A36, C45 | Construction, mechanical parts |
Stainless Steel | Excellent corrosion resistance | High | High | 304, 316 | Medical, food processing, chemical industry |
Alloy Steel | High strength, heat resistance, corrosion resistance | High | Moderate | 42CrMo, 20CrMnTi | Aerospace, automotive, marine industry |
Tool Steel | High hardness, wear resistance | Very High | Low | D2, O1 | Cutting tools, mold manufacturing |
Spring Steel | High elasticity, good toughness | High | Low | 65Mn, 55SiMn | Springs, shock absorbers |
This table shows the characteristics and application areas of several common steels to help you select the best material for your specific needs. For a quote or any other material related questions, please feel free to contact us directly or send us an email：quote@alliedcn.com
Common steel parts manufacturing methods
Surface Treatment of Steel Parts
Through surface treatment, the corrosion resistance, hardness, appearance and performance of aluminum parts can be enhanced to make them more adaptable to harsh working environments.
The following are common surface treatment processes for aluminum parts:
Electroplating is the electrolytic deposition of a layer of metal (e.g., nickel, copper) onto the surface of aluminum to provide additional protection and improve wear resistance and aesthetics.
- Advantages: Enhanced wear resistance and glossy appearance; improved electrical conductivity.
- Applications: electronic equipment, decorative parts, etc.
Heat treatment is the process of changing the crystal structure of steel by heating and cooling to enhance its hardness and toughness.
- Advantages: Enhances the strength and wear resistance of the material and improves service life.
- Applications: Mechanical gears, bearings, tool steel, etc.
Oxidation forms a dense oxide film on the steel surface, providing protection against corrosion and rust.
- Advantages: Improved corrosion resistance and increased rust protection.
- Applications: outdoor equipment, marine hardware, etc.
Painting is the formation of a protective layer on the surface of aluminum by spraying coatings to provide color, luster, and corrosion resistance. Commonly used coating materials include polyester and fluorocarbon.
- Advantages: Enhances appearance, corrosion resistance, and UV resistance.
- Applications: construction, home appliances, furniture, etc.
Polishing makes the steel surface smoother and flatter by grinding and polishing treatment.
- Advantages: Enhance the appearance of gloss and finish, reduce friction.
- Applications: medical equipment, automotive parts, etc.
Chemical Plating is a currentless plating method that deposits metals (e.g., nickel, copper) on the surface of aluminum parts through a chemical reaction, and is suitable for parts with complex shapes.
- Advantages: Uniform metal plating, improved corrosion resistance, suitable for complex shapes.
- Applications: electronics, aerospace, automotive, etc.
Cleaning is an important step in removing machining residues (e.g., oil, cutting fluids) from the surface of aluminum parts to provide a clean surface for subsequent coating treatments.
- Benefits: Removes contaminants and improves coating adhesion.
- Applications: All aluminum parts.
Steel parts manufacturing Methods Comparison：
Machining Method | Features | Applications | Tolerances | Surface Finish | Cost |
CNC Turning | Ideal for cylindrical parts, high precision, efficient production | Mechanical parts, automotive components | ±0.01 mm | Smooth (Ra 0.8-1.6 µm) | Medium |
CNC Milling | Multi-axis machining for complex geometries | Aerospace, molds, mechanical components | ±0.01 mm | High quality (Ra 0.8-3.2 µm) | Medium |
3D Printing | Layer-by-layer manufacturing, suitable for prototypes and complex parts | Prototypes, complex geometries | ±0.01 mm | Adjustable, rough to smooth | Low to medium |
Rapid Prototyping | Quick production for testing and prototyping | Design iterations, test samples | ±0.01 mm | Variable | Low |
Sheet Metal Fabrication | Suitable for large, thin parts with bending and cutting | Enclosures, brackets, panels | ±0.5 mm | Variable | Low |
Casting | Mass production of complex shapes, suitable for durable parts | Engine housings, mechanical components | ±0.01 mm | Medium (Ra 6.3-12.5 µm) | Low |
Brief Explanation of Cost Comparison:
- CNC Turning and CNC Milling:
High precision, moderate cost, suitable for high-demand precision machining. - 3D Printing:
Ideal for small batch production and complex parts, low upfront cost but higher for mass production. - Rapid Prototyping:
Lowest cost, ideal for quickly validating design concepts and prototypes. - Sheet Metal Fabrication:
Good for large-sized or thin parts, lower cost, efficient for mass production. - Casting:
Best for large quantities and complex shapes, lowest per-unit cost, though initial tooling can be expensive.
- CNC Turning and CNC Milling:
This comparison helps you choose the most suitable machining method based on your project’s requirements and optimize your costs accordingly.
Materials
100+ materials can be freely selected to meet your customized processing needs!
Metals
Metallic materials are rugged and offer excellent strength and durability.
Plastics
Lightweight and flexible, used in a wide range of industries.
Composites
High-performance materials that combine strength and lightweight.
Why choose Allied Metal for steel parts manufacturing?
Professional technical support is available at every step from design to production to ensure smooth processing.
Equipped with advanced CNC machine tools and other equipment for cast iron parts of various complex shapes and accuracy requirements.
We leverage a robust supply chain and global partnerships to provide high-quality, customized materials for all projects.
We tailor processes to optimize cost, materials, and performance, ensuring efficient, high-quality delivery for any batch size.
FAQ
Please provide us with the detailed design drawing or 3D model of the part, material requirement, quantity and delivery date. We will provide you with an accurate quote based on this information.
Yes, we support small-lot custom processing, which is suitable for prototype development or small-scale production needs.
Different types of steel (e.g. carbon steel, stainless steel, alloy steel) have different costs, and choosing higher performance or special specifications will increase the processing cost.
Steel is susceptible to rust by the environment, we can improve the corrosion resistance by surface treatment.
The lead time depends on the complexity of the part and the production lot, usually 7 to 30 working days, which will be provided upon confirmation of the order.
We use advanced CNC machining equipment to strictly follow the drawing requirements, and high precision testing equipment to ensure that the tolerance range of each part meets the standard.
Yes, we offer a wide range of surface treatment services, including plating, oxidizing, spraying and polishing, to help enhance the corrosion resistance, appearance and service life of the parts.
We can modify or re-process parts that have already been produced according to your requirements, and the exact cost of processing will depend on the scope of the modification.
