Custom Precision Carbon Steel Parts Manufacturer in China
- 14 years of carbon steel machining experience
- One-stop service process
- Tight tolerance up to ±0.005mm
- Fast turnaround
- AS9100 and ISO9001:2015 certified
- Cost-effective
Why Choose Us as Your Carbon Steel Parts Manufacturer?
As a global machining factory, DSR can provide the most suitable manufacturing solutions for your needs. Need CNC machining prototypes? Low or high volume orders? No problem! Our experts can take these projects and run them through our advanced CNC machines. Over the years, we have been committed to providing our clients with the highest quality machining experience. Our engineers will communicate with you to develop the most suitable cutting strategy to maintain strict dimensional tolerances and surface finish of the parts.
In addition, our factory has advanced equipment and efficient production processes, so we can offer you quicker lead times as well as guaranteeing that each piece of carbon steel we supply is of the highest quality.
Our Custom Carbon Steel Parts Capabilities
Our factory is equipped with advanced machine tool equipments that can efficiently remove material to create complex geometries, slots, and surfaces. Furthermore, our CNC shop is capable of flexibly addressing the various challenges of carbon steel machining, ensuring tight tolerances and exceptional surface finish for your components.
Our precision machining services offer excellent accuracy, with tolerances as tight as ±0.005 mm. Whether it’s low carbon steel 1018 or high carbon steel 1095, we can ensure the dimensional stability and structural integrity of your components.
We can utilize high-performance 3-axis and 4-axis CNC milling centers to machine carbon steel parts with complex geometries. These parts also feature burr-free edges and excellent surface finishes (Ra 0.4 – 3.2).
Our CNC turning centers are optimized to produce a variety of cylindrical carbon steel parts for you, such as shafts, pins and custom fasteners. And we were able to maintain tight concentricity and runout tolerances.
Wire EDM and Sinker EDM machining processes allow us to machine your parts without touching them. Complex profiles with tight internal corners can be achieved in hardened carbon steel with great accuracy.
You can also take advantage of our rapid prototyping services to accelerate your product development cycle. We can machine custom carbon steel jigs, jigs and short run prototype molds. And our team will work closely with you to ensure designs and material selections are validated before full-scale production.
Our CNC grinding services include surface grinding, cylindrical grinding and centerless grinding. These processes enable parts to meet micron level tolerances (accurate to ±0.005mm) and achieve mirror-like surface finishes (Ra 0.1). Ideal for parts requiring extreme wear resistance such as shafts, gears, custom tooling and more.
Our 5-axis CNC machining center is the perfect solution for complex carbon steel parts that require machining from multiple angles.We can machine five faces of a part in a single setup, which eliminates cumulative errors and significantly reduces setup time and overall production costs.
For some complex internal cavities or large carbon steel components, we also provide precision casting technology for you. This process reduces material waste and CNC machining time, and we also perform secondary precision machining on parts with critical mating surfaces and tight tolerances.
What Carbon Steel Machined Parts can We Manufacture?
So far, we have produced more than 100 types of carbon steel parts for customers from all over the world. Our carbon steel processing services can provide the perfect solution based on your plans.
We can customize various complex-shaped parts according to your drawings and ensure strict tolerances.
Our fasteners have excellent tensile strength and yield strength, and can withstand extreme mechanical loads after heat treatment.
Precise and vibration-resistant. Our Carbon Steel Fittings provide reliable leak-free connections in demanding industrial piping applications.
These carbon steel manifolds can withstand extremely high pressure, and their internal flow channels are processed to be smooth and unobstructed.
DSR can manufacture carbon steel shafts with excellent torsional strength and fatigue resistance for you, with high precision.
Our valves are robust and durable, capable of handling harsh conditions of high temperature, high pressure, and high wear. They also have a long service life.
These carbon steel hinge pins are designed for heavy machinery, hatches, and load-bearing hinges, and feature extremely high shear strength and surface wear resistance.
Our carbon steel flanges have extremely high structural strength, strictly conforming to international standards such as ANSI/DIN, and are easy to maintain.
The sprocket undergoes heat treatment, such as high-frequency quenching, resulting in extremely high surface hardness that effectively resists severe wear during chain engagement.
Our cam surfaces have excellent wear resistance and contact fatigue resistance, ensuring they perform very well during use.
Carbon steel bushings offer excellent load distribution and impact resistance, making them a highly cost-effective wear protection solution.
These carbon steel gaskets can be used in extreme pressure environments because of their extremely high compressive strength and rigid sealing.
Quality Control for Your Carbon Steel Parts Projects
When it comes to carbon steel machining, part accuracy and material integrity are very important. And our ISO9001:2015 certified factory adopts a strict end-to-end quality assurance process. DSR has partnered with professional material suppliers who provide complete material traceability, and we also utilize instruments such as OES to verify carbon content and alloy elements.
Our inspection lab is equipped with advanced coordinate measuring machines (CMM), optical projectors, and high-precision micrometers. During production, we conduct strict inspections and continuous process monitoring. After production is completed, we also perform random inspections on mass-produced parts to ensure that all components meet your specifications. Additionally, heat treatment is a critical step in the machining of medium and high carbon steel. We perform rigorous Rockwell (HRC) and Brinell (HB) hardness tests to ensure that your components meet the specified core and surface hardness.
DSR Surface Treatment for Carbon Steel Parts
To help your parts endure extreme environments and perform better than expected, we offer comprehensive surface and heat treatment services. Our surface finishing services provide you with ready-to-use parts that exceed your expectations.
Black oxide is a very popular chemical conversion coating for carbon steel parts. It provides a smooth matte black surface with mild corrosion resistance and reduced light reflection. Black oxide coating is the ideal surface finish for high precision carbon steel parts.
To increase the hardness and wear resistance of carbon steel parts, we also have the capability to provide precision heat treating services. By quenching and tempering your components, we can create an ultra-hard surface while still retaining ductility.
If your parts need to be used in harsh environments, we also offer industrial-grade plating services, primarily zinc plating and electroless nickel plating. And electroless nickel plating also provides components with excellent wear resistance and protection against chemical corrosion.
Through the powder coating process, your carbon steel components can achieve a tough and aesthetically pleasing surface quality. This coating also offers exceptional resistance to chipping, scratching, fading, and corrosion.
If you require ultra-low friction or a premium finish on your carbon steel parts, we can perform precision mechanical polishing. This process can take the surface roughness of your parts down to ultra-low levels (Ra 0.1 or mirror finish).
Bead blasting is an excellent mechanical surface treatment method for carbon steel. By propelling fine glass beads at high pressure, we effectively remove CNC machining marks, slight burrs, and surface oxidation from the part surface without damaging the part’s dimensions. In addition, this process can give parts a clean, uniform, and aesthetically pleasing matte finish.
What Industries use Our Carbon Steel Parts?
Carbon steel is used in nearly every industry because of its excellent properties. Parts of many different varieties are made out of this material and perform excellently.
Components in the oil and gas industry are often exposed to the harshest environments. Our carbon steel components can withstand extreme pressure and corrosive elements. Through precise CNC machining and protective surface treatments, we ensure the reliability of your parts.
Automotive components must be durable and resistant to fatigue. Through precision machining, milling processes, and heat treatment techniques, we ensure these parts have a tough, wear-resistant appearance.
DSR has manufactured many parts for clients in the industrial machinery sector. Our advanced CNC machining and grinding capabilities ensure that these mechanical components achieve tight tolerances while also extending their service life.
We can use medium and high carbon steel to customize various types of high-strength building components. In addition, we use surface treatments such as galvanization or powder coating to provide these carbon steel components with superior shear strength and weather resistance.
High-strength carbon steel is very suitable for the aerospace industry. We use precision milling processes to manufacture aerospace components, ensuring that these parts deliver exceptional accuracy and dimensional stability.
The medical industry has extremely strict requirements for components. By combining precision CNC machining with clean, aesthetically pleasing surface finishes, the components we provide not only offer exceptional stability but also meet stringent hygiene standards.
Premium Materials for Precision Carbon Steel Parts
Choosing the right grade of carbon steel is important to balance the strength, machinability, and cost-effectiveness of your project. As a professional manufacturer in the field of carbon steel processing, DSR has extensive experience in handling a wide range of carbon and alloy steels.
- Low Carbon Steel
- Medium Carbon Steel
- High Carbon Steel
Mild steel typically has a carbon content between 0.05% – 0.30%.
| Attributes | AISI 1018 | AISI 1020 | ASTM A36 | AISI 12L14 |
| Key Alloying Elements | Carbon (C), Manganese (Mn) | Carbon (C), Manganese (Mn) | Carbon (C), Mn, Silicon (Si) | Carbon (C), Mn, Lead (Pb) |
| Key Advantages | Excellent weldability & cold forming; good surface finish. | Slightly higher strength than 1018; excellent ductility. | High structural yield strength; industry-standard. | Extreme cutting speeds, excellent chip breaking. |
| Machinability | Excellent | Excellent | Good | Supreme |
| Durability | Low | Low | Medium | Low |
| Cost | $ | $ | ¢ (Very Low) | $$ |
| Heat Treatment | Case Hardening only | Case Hardening, Normalizing | Typically not heat-treated, directly weldable | Typically not heat-treated |
| Typical Applications | Pins, non-high-strength fasteners, mounting brackets. | Light-duty gears, general machined shafts, cams. | Heavy equipment frames, structural components, bases. | High-volume Swiss turned parts, bushings, precision fittings. |
Medium-carbon steel has a carbon content ranging from 0.31% to 0.60%.
| Attributes | AISI 1045 | AISI 1050 | AISI 4140 (Alloyed) | AISI 4340 (Alloyed) |
| Key Alloying Elements | Carbon (C), Manganese (Mn) | Carbon (C), Manganese (Mn) | Carbon (C), Chromium (Cr), Molybdenum (Mo) | Carbon (C), Cr, Mo, Nickel (Ni) |
| Key Advantages | Perfect balance of strength and toughness; great heat treatment response. | Higher tensile strength and surface hardness than 1045. | High fatigue strength, torsional resistance, deep hardenability. | Extreme toughness and impact resistance; deep hardening. |
| Machinability | Good | Fair | Fair | Poor |
| Durability | High | High | Very High | Supreme |
| Cost | $$ | $$ | $$$ | $$$ |
| Heat Treatment | Quenching & Tempering (Q&T), Induction Hardening | Q&T, Forging | Annealing, Q&T | Q&T, Stress Relieving |
| Typical Applications | Drive shafts, automotive gears, hydraulic cylinders. | Forged connecting rods, heavy-duty hand tools, splined shafts. | Oil & gas high-pressure valves, aerospace fittings. | Heavy-duty landing gear, extreme-load drive shafts. |
High-carbon steel has a carbon content ranging from 0.61% to 1.50%.
| Attributes | AISI 1060 | AISI 1080 | AISI 1095 | AISI 52100 (Bearing Steel) |
| Key Alloying Elements | Carbon (C), Manganese (Mn) | Carbon (C), Manganese (Mn) | Carbon (C), Manganese (Mn) | Carbon (C), Chromium (Cr) |
| Key Advantages | High yield strength, excellent wear resistance, ideal for springs. | Excellent edge retention and high tensile strength. | Extreme surface hardness and friction/wear resistance. | Extreme rolling contact fatigue life and ultra-high hardness. |
| Machinability | Poor | Very Poor | Very Poor | Poor |
| Durability | High | Very High | Very High | Supreme |
| Cost | $$ | $$ | $$$ | $$$ |
| Heat Treatment | Through-hardening, Tempering | Through-hardening & Tempering | Strict through-hardening & precision tempering | Machined after spheroidize annealing, then Q&T |
| Typical Applications | Mechanical springs, wear washers, clutch plates. | Cutting tools, heavy industrial springs, high-strength wire. | Industrial blades, high-wear scraper blades, precision shims. | Precision bearing rings, high-wear rollers, cam followers. |
Low carbon steel, medium carbon steel, high carbon steel and ultra-high carbon steel.
Low carbon steel, such as AISI 1018 or 1020.
When subjected to appropriate heat treatment, high-carbon steel and ultra-high-carbon steel can achieve the highest hardness and tensile strength among carbon steels.
This material is mainly used in applications that require cold machining or deep drawing, such as automobile body panels, home appliance casings, metal stamping parts, and seamless steel pipes.
This material is highly unsuitable for use in damp, high-salinity environments or where it comes into contact with corrosive chemicals without surface protection (such as galvanization or coating).
The lead time for custom carbon steel machining primarily depends on the complexity of your parts, the order quantity, and whether special heat treatment or surface finishing is required.
The key to choosing a reliable carbon steel fabrication partner lies in evaluating their equipment capabilities, quality control systems and expertise in materials. As a professional manufacturer with 14 years of experience, DSR has a complete quality assurance process. Our factory has advanced CNC machine equipment and can also provide professional advice on material selection and heat treatment solutions.
The best way to cut carbon steel depends on the thickness of the material, accuracy, and production efficiency. For high-precision machined parts, you can use CNC turning and milling with carbide or coated cutting tools. For medium- to high-carbon steel, you must ensure tight tolerances and excellent surface finish.
