Shafts and bolts
Shafts, bolts, and supports that transmit force between components.
Metal · Custom parts
Carbon steel CNC machining
of carbon steel.
Mechanical parts to transmit load and motion. We machine carbon steel for shafts, bolts, and custom machinery components.
Get your quoteQuote in 24 h · Engineering review
- From
- 1 unit
- Delivery from
- 8 working days
- Material
- Fe Metal
01 / Why choose this material
Properties and uses
of carbon steel.
Steel for shafts, bolts, and mechanical components. Its strength, hardness, and weldability depend on carbon content and heat treatment.
Carbon steel combines mechanical strength and cost-effective material. The result depends on the grade and heat treatment: a C25E part does not offer the same performance as a tempered and stress-relieved C45E part.
Learn about the CNC machining process ↗Carbon steel properties
Physical reference · C45 from Ovako
- Indicative density
- 7.85 g/cm³
- Elastic modulus · ref. C45
- 210 GPa
- Shear modulus · C45
- 80 GPa
- Thermal conductivity · C45
- 40–45 W/(m·K)
- Presentation
- Semi-finished for CNC
Reference modules and conductivity for C45; density is a catalog approximation. Strength, hardness, and weldability depend on the grade, section, and heat treatment.
Property reference: Ovako · C45 ↗
- Good mechanical strength according to grade
- Electrical conductor
- Admits heat treatments according to grade
- Requires protection against corrosion
Carbon steel applications
Machinery
Machined machinery components with defined fits per drawing.
Fasteners
Special fasteners and threaded parts according to geometry and material.
Structures
Supports and structures requiring protection against corrosion.
02 / A choice based on usage
Carbon steel alloys.
Compare the grades and specify the one your design needs. The supply condition also changes the properties.
01
C25E · F-1120
Lower carbon content than C45E. Strength and weldability are rated based on the supply condition.
02
C45E · F-1140
For shafts and mechanical components. Can receive quenching and tempering when the design requires specific properties.
The part's function is the starting point.
Indicate loads, temperature, environment, and appearance needed. If the drawing requires a specific grade, include it in the request.
03 / Finishing also counts
Finishes and appearance
of carbon steel.
Define visible surfaces and the required result for your part. Requested treatments are included in the quote.
The part retains machining marks. Indicate adjustment surfaces and visible faces on the drawing.
The image could not be loaded. Try a different finish.
Reference images: material, geometry, and surface preparation influence the outcome. Special finishes are quoted upon request.
04 / From design to quote
CNC machining
of carbon steel.
Milling and turning allow manufacturing carbon steel parts from a block, plate, or bar. The tool removes material to obtain faces, cavities, drilled holes, and contours according to the design.
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Upload your file and request a quoteFor parts with uniform thickness, this material is also available for sheet metal cutting and bending ↗.
Part tolerances
For dimensions without specific tolerances, Proto&Go! applies ISO 2768-f. With a drawing, equivalent tolerances to IT7 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
Calculate a tolerance ↗Quantity and cost per part
In CNC, setup costs are distributed across the batch units. The final reduction depends on machining time and material.
Quote in 24 hours
Parts from 8 working days after confirming the order. The quote specifies the lead time based on geometry, material, finish, and quantity.
How much it costs to manufacture
The price of your part
in carbon steel.
The price of machining carbon steel depends on the geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining.
Check the catalog example to compare materials. To know the cost of your design, request a quote with your 3D file.
Frequently asked questions
Before manufacturing
in carbon steel.
Properties, applications, and manufacturing: answers to prepare your request.
What is carbon steel and what properties does it have?
Steel for shafts, bolts, and mechanical components. Its strength, hardness, and weldability depend on the carbon content and heat treatment. Reference modules and conductivity for C45; density is catalog-based. Strength, hardness, and weldability also depend on the grade, section, and heat treatment.
What parts can be manufactured in carbon steel?
We can manufacture shafts and bolts, machinery, fasteners, and structures. CNC machining allows adapting the geometry to your 3D file. Define the loads, the environment, and the finish so we can review the application.
What is the difference between C25E and C45E steel?
C45E has a higher carbon content than C25E and can be used in parts requiring quenching and tempering. Strength, hardness, and weldability also depend on the treatment and supply condition; choosing the steel name is not enough.
How do I protect a carbon steel part against corrosion?
You can consider zinc plating, nickel plating, or painting based on the environment and functional surfaces. Bluing provides a dark appearance, but its protection requires appropriate usage and maintenance conditions. Specify the finish and critical dimensions when requesting the quote.
Can I order a machined shaft in carbon steel with heat treatment?
Yes, you can indicate on the drawing the grade, treatment, and required hardness so feasibility can be reviewed. The treatment may affect dimensions and manufacturing order. The quote must confirm these requirements before manufacturing.
How much does it cost to machine a carbon steel part?
The price of machining carbon steel depends on geometry, grade, tolerances, finish, and quantity. It includes material, preparation, and machining. Upload your 3D file to the Proto&Go! platform to receive a quote with cost and lead time.
What tolerances can I request for a carbon steel part?
For dimensions without specific tolerances, Proto&Go! applies ISO 2768-f. With a drawing, equivalent tolerances to IT7 can be assessed, depending on the geometry and requested dimensions. Attach the drawing and mark the functional surfaces.
What file do I need to manufacture a carbon steel part?
Send a 3D model per part in STEP or a native supported format: SLDPRT, X_T, X_B, IPT, CATPART, PRT, SAT, or 3DM. Attach a PDF drawing for threads, inserts, or specific tolerances. STL is accepted only for 3D printing.
Compare before choosing
Other options for your part.
Your next part
Shape it
in carbon steel.
Upload the 3D file. We review feasibility and send you the quote.