• ascnc@asianstarcnc.com

Mastering the Art of CNC Turning Carbon Steel: A Comprehensive Guide for Manufacturers

CNC (Computer Numerical Control) machining is a manufacturing process that is widely recognized for its ability to create highly complex and precise parts. As a manufacturer, one must understand the intricacies of the materials utilized in CNC machining. Carbon steel, a popular choice of material in manufacturing, boasts excellent qualities that can significantly benefit various industries. This article will guide you through the process of CNC turning carbon steel and explore the advantages it offers to manufacturers.

Understanding Carbon Steel: The Basics

Carbon steel is a type of steel that contains iron, carbon, and other trace elements. It is classified into four categories based on its carbon content: low-carbon steel, medium-carbon steel, high-carbon steel, and ultra-high-carbon steel. Each type has distinct characteristics and unique applications. Low-carbon steel, for instance, is more ductile and has better weldability, while higher carbon content imparts hardness and strength to the steel but makes it less ductile.

The range of industries that utilize carbon steel is vast. For example, construction, automotive, and aerospace industries are significant consumers of carbon steel products.

The Process of CNC Turning Carbon Steel

CNC turning is a subtractive manufacturing process that involves the use of a lathe to remove material from a workpiece. The lathe rotates the workpiece at a high speed while a cutting tool moves along the workpiece's surface to create the desired shape. CNC turning is ideal for producing cylindrical or rotational parts with complex features, including grooves, threads, and tapers.

When working with carbon steel, it is crucial to consider factors such as spindle speed, feed rate, cutting depth, and cutting tool selection to achieve high-quality results. These factors can directly impact the overall efficiency of the process and the surface finish of the final product.

Spindle Speed

Optimal spindle speed is critical for maintaining the workpiece's stability and achieving precise CNC turning. Manufacturers should determine the proper spindle speed based on the carbon steel grade and the desired surface finish. Lower spindle speeds are recommended for materials with a higher carbon content, as these grades are more prone to work hardening.

Feed Rate

The feed rate refers to the speed at which the cutting tool moves along the workpiece. Selecting the appropriate feed rate helps prevent tool deflection, vibration, and premature tool wear. Factors that influence feed rate selection include the carbon steel grade, desired surface finish, and cutting tool material.

Cutting Depth

The cutting depth impacts the efficiency of material removal and the surface finish of the final product. Choosing the correct cutting depth can help reduce the number of passes required, leading to a more efficient process. However, excessive cutting depths can cause tool deflection and adversely affect the surface finish.

Cutting Tool Selection

The choice of cutting tools directly impacts the quality and productivity of the CNC turning process. Factors to consider when selecting cutting tools for carbon steel include the material's hardness, desired surface finish, and required precision. Carbide cutting tools, specifically coated ones, are often recommended for turning carbon steel due to their excellent wear resistance and ability to maintain a sharp cutting edge.

The Advantages of CNC Turning Carbon Steel

There are several notable advantages to utilizing CNC turning for carbon steel products. These benefits include:

1. Accuracy and Precision:CNC turning allows for remarkable accuracy and repeatability, making it ideal for producing complex components that require tight tolerances.

2. Efficiency:The CNC turning process can remove large amounts of material quickly, reducing production times and increasing overall efficiency.

3. Flexibility:CNC turning is well-suited for both low and high production runs, making it a versatile manufacturing technique for various industries.

4. Cost-Effectiveness:The automated nature of CNC turning helps minimize labor costs and the need for highly skilled workers, resulting in reduced production expenses.

Applications of CNC Turned Carbon Steel Components

CNC turned carbon steel parts are utilized in various industries, including:

Automotive:Components such as gears, shafts, and fasteners are often made from carbon steel using CNC turning due to their high strength and wear resistance.

Construction:Turned carbon steel parts, such as structural support elements and anchors, are widely used in the construction industry because of their durability and resistance to corrosion.

Aerospace:CNC turned carbon steel components are used in aircraft structures, landing gear systems, and engine parts, where precision and high strength are crucial.

In summary, CNC turning carbon steel is an effective and efficient manufacturing process that can produce high-quality components for various industries. By understanding and considering factors such as spindle speed, cutting tool selection, and feed rate, manufacturers can optimize their CNC turning process and ensure the production of accurate and precise parts. With its numerous advantages, CNC turning carbon steel remains a popular choice for manufacturers seeking versatility and cost-effectiveness.

cnc turning carbon steel manufacturer

What is CNC Turning

CNC turning is a process that involves using computer numerical control (CNC) machines to shape and finish various materials, such as metals and plastics, into desired shapes and sizes.
This process is typically used in the manufacturing industry to produce precision parts and components for a wide range of applications, including automotive, automation, aerospace, medical, machinery, and industrial.

CNC Turning service

Asianstar Professional CNC Turning Service

Asianstar CNC turning Service offers precision machining for a wide range of materials, including metals, plastics, and composites. With high level facilities and skillful operators, we can produce high-quality parts with tight tolerances and intricate designs.

Our CNC turning capabilities allow us to produce parts with diameters ranging from 0.5 mm to 480mm and lengths up to 450mm. We offer both single and multi-axis turning, as well as live tooling options for added complexity and accuracy.

We use proven processes and quality control measures to ensure that every part we produce meets our clients' specifications and expectations.

Whether you need a single prototype or high-volume production runs, our CNC turning service can provide the precision and reliability you need to get your project completed on time and on budget.

CNC Turning service

Components Sizes of Asianstar CNC Turning Service

Unit (mm) Min Max
Out Diameter 0.5 480
Inner Diameter (Hole) 0.3 465
Length 1.0 450
Groove Diameter 0.4 above
Thread M1.2 above

Components Tolerance of Asianstar CNC Turning Service

Unit (mm) Tolerance according to sizes
Height Tolerance Diameter Size 0.5 to 3 3 to 6 6 to 30 30 to 120 120 to300 300 to480
Tolerance ±0.003 ±0.010 ±0.020 ±0.030 ±0.035 ±0.040
Length Tolerance Length Size 0.5 to 3 3 to 6 6 to 10 10 to 20 20 to 30 30 above
Tolerance ±0.010 ±0.020 ±0.250 ±0.250 ±0.030 ±0.035

Components shape and position tolerance of Asianstar CNC Turning Service

Tolerance Class followed Tolerance (mm)
Straightness and Flatness Verticality Symmetry
10 10 to 30 30 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000 to 100 100 to 300 300 to 1000 1000 to 3000
H ±0.015 ±0.02 ±0.03 ±0.05 ±0.10 ±0.15 ±0.02 ±0.025 ±0.03 ±0.035 ±0.02 ±0.03 ±0.04 ±0.05

Capability of Asianstar CNC Turning Service

Type of Turning Machine Diameter Size (mm) Length Size (mm) Productivity (PCS/Month)
Auto Turning Machine Simple Turning Machine Multi Turning Machine Pin Turning Machine Min 0.5 Max 480 Min 1.0 Max 450 200’000/Item


Multiple Machining Processes

Multiple Machining Processes

Asianstar has various machining processes to support different types of components from client, we can choose the best suitable manufacturing solution to carry result in perfect performance and cheap cost

Flexible Custom Service

Flexible Custom Service

With skillful machining technologies, Asianstar is flexible to support clients on different materials and different structures of the components, we also flexible on the components quantities and even assembly

Create Designing for Clients

Create Designing for Clients

Not only producing according to clients drawings, Asianstar also propose the better designing to clients, supporting clients to buildup improved designing or even new generation components

Standard Procedures

Standard Procedures

Asianstar production, as experienced by many years, is strictly following internal Standard Operating Procedures, to make sure the production schedule is smooth and plans are well carried out well without accidents

Standard Procedures

Standard Procedures

Asianstar strictly controlling product quality by system. We start QC controlling from production plan once setting up, to production process by monitoring QC checking and until the final Inspection before packing

Fast Lead-Time Delivery

Fast Lead-Time Delivery

Asianstar strictly control the production processes, teams keep the plan moving ahead according to the procedures, we have internal time management schedule which mostly bring earlier lead-time of delivery

Asianstar: Professional CNC Machining Supplier

From year of 2005, Asianstar Company establish the CNC Machining Factory in Guangdong Province, China.
We mostly provide CNC Turning, Milling, Drilling, Grinding, and Multi Machining processes service on various materials.
With the Belief of becoming a key supplier in the supply-chain of Precision Components, we strictly control our product quality, keep high precision on our components production, buildup the whole-process QC System and submit the satisfaction for every order.
By long term development, we have buildup partnership with world-wide clients, supporting our partners in Designing, Optimizing, Producing and Testing on each type of components.


CNC Turning Service

CNC Turning Service

Our CNC Turning Service provides different sizes of roll shape work-pieces, the diameter range is from 0.5mm to 480mm, reaching tolerance +/-0.003mm.

CNC Milling Service

CNC Milling Service

Our milling machines and CNC centers are able to produce complicated structure part, five-axis devices produce multi-sides at one-time jag which bring high precision result

Sheet Metal Fabrication

Sheet Metal Fabrication

Our Sheet Metal Fabrication provides slicing, punching, bending, welding, painting and assembling for set products, unique tooling for each project to raise production efficiency

Aluminum Extrusion

Aluminum Extrusion

Our Aluminum Extrusion brings clients various shapes of aluminum parts, high efficiency for mass quantity, our precision extrusion mold control tolerance within 0.01mm

Forging Service

Forging Service

For some steel serious products, we apply Forging Service to make out their outer shape and them use CNC devices to start drilling, forming, rolling, cutting, etc.

Finishing Service

Finishing Service

Our Surface Finishing Service uses chemical or electro post-treatments after machining tasks are finished, normally includes Oxide, Anodizing, Passivation, E-Plating, Painting,etc.


  • Q1.Do you support ODM/OEM?

    Yes, we support ODM/OEM, we provide custom-made service for clients or even support clients on designing or improving

  • Q2.Do You Have Stock
  • Q3.What Is Your Production Capacity?
  • Q4.Where Is Your Factory?
  • Q5.Can You Provide Samples?
  • Q6.How About Your After-sales Service?
Get The Best Quotes Now