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Steel CNC Milling Service
Unlock precision with Istar Machining’s steel CNC milling service. From prototypes to large-scale production, we expertly craft parts for aerospace, automotive, and more, utilizing diverse steel grades with exceptional accuracy. Get your fast quote now!
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Supports uploading of the following file formats: .STEP .STP .SLDPRT .STL .IPT .3MF .3DXML .PRT .SAT .DXF .X_T .X_B .JT .CATPART
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20+ Years
Istar Machining's years in the industry
300,000 square feet
The size of Istar Machining's factory
300 CNC machines
Our CNC equipment count
1000 skilled workers
Istar's number of skilled machinists/operators
What Is Steel CNC Milling?
Steel CNC milling is a way to make parts from steel using computer-controlled machines. These machines cut away material to create the exact shape you need. At Istar Machining, we use top machines to make steel parts that fit just right for your project.
We make parts for many different uses – from car parts to tools for factories. Our machines can cut steel with very small errors (as little as 0.005 mm), which is thinner than a human hair!
Why Choose Our Steel CNC Milling Service?
Our team at Istar Machining knows steel inside and out. Here’s why customers pick us:
- Expert with many types of steel – We work with carbon steel, stainless steel (like 304 and 316), alloy steel (like 4140 and 4340), and tool steel (D2 and H13)
- Very exact cuts – Our machines can make parts that fit together perfectly
- Fast work – We can make prototype parts in just 3-7 days
- Help with design – We can help make your ideas better for manufacturing
- Full service – We do everything from making the part to finishing it with treatments
Our Machines and What They Can Do
At Istar Machining, we use the best CNC milling machines:
Machine Type | What It Can Do | Best For |
3-axis CNC Mills | Basic cutting in three directions | Simple parts |
4-axis CNC Mills | Cuts in four directions | More complex shapes |
5-axis CNC Mills | Cuts from all angles | Very complex parts |
Vertical Mills | Cuts from above | Flat work |
Horizontal Mills | Cuts from the side | Heavy-duty work |
Our machines are made by top brands like Haas and DMG Mori. They can make parts as big as 2000 x 800 x 500 mm!
Steel Materials We Work With
We can work with many types of steel at Istar Machining:
- Carbon Steel – Strong and less costly
- Stainless Steel (304/316) – Doesn’t rust, good for food or medical use
- Alloy Steel (4140, 4340) – Extra strong for tough jobs
- Tool Steel (D2, H13) – Very hard, good for making tools
- Heat-Resistant Steel – Works well in hot places
Each type of steel needs special knowledge to cut it right. Our team knows all the tricks to get the best results from each metal.
Industries We Serve
Our steel CNC milling service helps many different industries:
- Aerospace – We make landing gear components and engine brackets that must be perfect
- Automotive – Transmission parts and suspension systems that keep cars running safely
- Medical – Surgical tools and test parts for implants
- Industrial – Custom tools and parts for hydraulic systems
How Our Process Works
When you work with Istar Machining for steel CNC milling, here’s what happens:
- Send us your design – We accept all file types (STEP, IGES, etc.)
- We check the design – Our team looks for ways to make it better and cheaper
- We give you a quote – Fast pricing, usually within one hour
- We make your part – Using our precision CNC milling process
- We check everything – Every part is tested to make sure it’s right
- We ship to you – Fast shipping to get your parts quickly
Special Features of Our Steel CNC Milling
Tight Tolerances
We can make parts with very small errors – as little as ±0.005 mm. That’s important when parts need to fit together perfectly.
Surface Finishes
Our machines can make steel surfaces very smooth (Ra 0.8–3.2 µm). We can even make mirror-like finishes for special parts.
Custom Work
Need something special? Our custom CNC steel service can make exactly what you need, even if it’s just one part.
From Prototype to Production
At Istar Machining, we help you at every step:
- Prototypes – We can make 1-50 test parts to try out your idea
- Small Runs – Perfect when you need a few hundred parts
- Full Production – We can make up to 50,000+ parts for big projects
Our CNC steel parts are the same high quality whether you order one or thousands.
Why Steel CNC Milling Is Great For Your Project
Steel parts made by CNC milling have many good points:
- Very strong – Steel can handle heavy loads
- Long-lasting – Steel parts can work for many years
- Heat-resistant – Many steels work well in hot places
- Precise – We can make very exact shapes
- Repeatable – Every part will be the same
Ready to Get Started?
Contact Istar Machining today to talk about your steel CNC milling project. Our team is ready to help make your ideas real with our expert CNC milling steel service.
Get a quote in just one hour!
Join our 500+ happy customers in automotive, defense, aerospace, and many other industries.
Frequently Asked Question
Yes! We can machine tool steel with hardness up to HRC 50+ using special carbide tools.
For prototypes, usually 3-7 days. For bigger orders, about 2 weeks.
No! We can make just one part if that’s all you need.
Yes! Our team can look at your design and suggest changes to make it better and cheaper to produce.
