Start Your CNC Steel Parts With Yecheng
- Rapid prototype within 7days
- Fast DFM feedback in 2 hours
- Leading quality surface finishing Ra 1.6μm
- CMM testing report
- Multiply materials & surface treatment
- Quality consistency from sample to bulk order
Custom CNC Steel Parts for Sale
Yecheng is a leading quality manufacturer for CNC steel parts in China. We can customize based on your 2d and 3d drawings, especially for high strict tolerance and top surface requirement CNC steel parts.
So far, we have cooperated with over 500+ customers from all over the world. No matter if you are an engineer or a purchasing agent or a start-up team, we have professional engineers and project managers to help you with your cnc machined abrasion resistant steel parts.
Don’t wait—turn your design into CNC steel parts now!
CNC Steel Parts By Materials
Steel is an iron-carbon alloy (typically containing less than 2% carbon), and is widely used in mechanical parts.

Easy for CNC machining, 0.01mm tolerance for critical dimensions

Advanced 3, 4, 5axis CNC milling & turning machining with smooth surface

304 316 416 stainless steel cnc machined parts with drilling, tapping and threading

Material report available, CMM test report after 100% quality inspection
CNC Steel Parts By Machining

The cutting tool cuts the outer circle and the inner hole. Suitable for cylindrical parts, pins and shafts.

Machinable planes, grooves, holes, and complex curved surfaces.

With hole diameters from 0.5mm up to 50mm unless otherwise specified.

With threadable hole diameters from M1 to M30 as your drawings specifications.
Reliable Steel Material Built for Performance
All our CNC steel parts are made from high-premium steel to provide the best combination of
strength, durability, and machinability.

With high hardness, can withstand heavy mechanical loads and impact.

Offering excellent durability and long service life.

Stainless steel with an excellent corrosion resistance.

Easy for us to weld and assemble with other parts.
Precision CNC Steel Parts Machining Capabilities
We have over 60+ CNC machining centers including multi-axis machining centers and high precision turning centers, offering turning, milling and tapping service. For some critical holes, we can reach 0.005mm tolerance.
Whether blind holes, through holes or threaded holes, we can precisely control the position and depth to meet the strict standard requirement in aerospace and automotive industry, achieving complex parts in a single setup.
Contact us now to get a customized hole machining solution!


Rigorous Quality Control
We have three steps for quality control – incoming material inspection, first article inspection and final inspection.
Every CNC steel part undergoes multiple layers of QC inspections before leaving the factory, including inspections for dimensional accuracy, hardness, flatness, and surface defects.
We use a coordinate measuring machine (CMM), a hardness tester, and professional visual inspection tools to ensure that the parts fully meet the customer’s design requirements.
Request a QC report to verify our quality commitment!
Resource

We hold ROHS, CE, and ISO certifications. You can download the certification files for more detailed information.

Before sending us your drawings for your CNC steel parts, please download and sign the NDA documents.

If you want to know more about materials and CNC machining, please take a look at the blog articles.
Yecheng’s CNC Steel Parts Machining


Engineering & Drawing Verification: With over 15+ years’ experience in CNC steel parts, we have a wide and professional knowledge system covering all the cutting tools and cutting parameters for steel material processing.
DFM Optimization & Cost Efficiency: After receiving your drawings, our team will check the pdf drawings with tolerance and compare them with 3d drawings. Then we will provide you with suggestions for improving and optimizing the product in terms of structure and cost.
Production & Quality Assurance: After all the confirmations are completed, we will start the production of your order. So you are working with a professional team rather than just dealing with a salesperson.
Contact us today to get a free quote or discuss your custom CNC steel parts project!
Custom CNC Steel Parts Applications
Due to different requirements in various scenarios, CNC steel parts are widely used in various fields. Below are some industries for your reference.

We supply gears, shafts, connecting rods and various precision CNC steel parts. The high-precision processing ensures the efficient and stable operation of the equipment and extends its service life

We can produce bearing housings, transmission components and customized CNC steel parts. With strict tolerance control and the selection of wear-resistant materials, ensuring the reliability and performance of the power system.

We provide precision brackets, connectors, and critical CNC steel parts to meet the strict tolerance, strength, and durability requirements of robotics and automation equipment.

We machine critical CNC steel parts such as valves, pump bodies, and screws, using high precision and quality materials to ensure stable operation under high pressure and temperature conditions.
CNC Steel Parts Material Reference Table
You can compare different steel materials for CNC machining. Check corresponding steel type, typical machining costs, common surface finish options to make final decisions for your project.
- Data Sheet
| Steel Type | Machining Cost | Common Surface Finish | Machinability | Notes |
| Carbon Steel | Low- Medium | E-coating, Powder Coating, Polishing | Easy | Widely used for structural parts |
| Alloy Steel | Medium | Electroplating, Black Oxide, Powder Coating | Medium | Higher strength, may require tool hardness consideration |
| Stainless Steel 304 | Medium-High | Polishing, Passivation, E-coating | Medium-Hard | Corrosion resistant, common for medical/food parts |
| Stainless Steel 316 | High | Heat Treatment, Black Oxide | Hard | Superior corrosion resistance |
Testimonials
Sure, all our materials are purchased by verified raw material suppliers. If you need the material certifications, just contact our customer service for further details.
We can provide a CMM testing quality report as well.
Yes, we can support heat treatment according to your industrial standard uch as ASTM, ISO to ensure reliability and consistency.
CNC steel parts are first wrapped with rust-proof paper, and then transported in custom wooden boxes for additional protection. The packaging is marked with “Prevent moisture, prevent rust, handle with care”, which helps to reduce the damage or rusting of the parts during transportation operations.
Related Products
Strict quality control from raw material to first sample to final product quality control.
Custom CNC Steel Parts – Order in 3 Steps
CNC steel parts production is mainly accomplished through computer numerical control (CNC) processing.
First, the designer draws the part drawings in the CAD software, and then generates the processing paths using the CAM software.
We use CNC lathes, milling machines, or five-axis machining centers for cutting operations, precisely turning the steel blanks into the desired shape.
Depending on the part requirements, drilling, tapping, thread processing, and surface treatment (such as sandblasting, plating, and spraying) may also be carried out.
The entire process can achieve a high accuracy, ensuring that custom steel part dimensions, hardness, and surface quality meet the design standards.












