CNC Machining Stainless Steel Parts
At Jiangzhi, we specialize in CNC machining stainless steel parts using advanced multi-axis machining centers. Whether you need CNC turning, CNC milling stainless steel, or custom SS machining, our experienced team ensures tight tolerances, smooth finishes, and reliable mechanical performance—based on your 2D/3D drawings or CAD models.
We support a wide range of SS grades, including 304, 316, 303, 17-4PH, and 416. These parts are ideal for high-strength, corrosion-resistant applications in aerospace shafts, housings, medical implants, surgical tools, automotive brackets, and industrial equipment. From feasibility review to final inspection, our CNC stainless steel service ensures quality, precision, and consistency for every order.
| Price | $$$ |
|---|---|
| Tolerances | ±0.01mm |
| Maximum Part Size | 1000mm x 800mm x 400mm |
| Minimum Feature Size | Φ 0.5mm |
| Wall Thickness | 1.0mm |
| Lead Time | About 3-6 days |
Stainless Steel for CNC Machining
Stainless steel is known for its strength, corrosion resistance, and heat resistance—ideal for parts that require durability and longevity. While harder to machine than aluminum, it produces robust, long-life components. Common Grades We Machine::
- 304 – General-purpose stainless, strong and corrosion-resistant, widely used
- 316 – Marine-grade SS with superior chemical and corrosion resistance
- 303 – Easier-to-machine stainless with good strength and wear resistance
- 17-4PH – Precipitation-hardened SS with excellent strength and hardness
- 416 – Free-machining SS used in precision components requiring high tolerances
| Tensile Strength | Hardness (HB) | Elongation at Break | Thermal Conductivity | Corrosion Resistance | Melting Point | CNC Machining Notes |
|---|---|---|---|---|---|---|
| 480–1100 MPa | 140–200 | 10–45% | 15–25 W/m·K | Excellent | 1370–1450°C | Harder to machine; use low speed and coolant |
- The above parameters represent the baseline performance of the materials. Actual application should be dynamically optimized based on specific working conditions.
Advantages & Disadvantages of CNC Stainless Steel Machining
CNC stainless steel offers excellent strength and corrosion resistance, but it is harder to machine than other metals. Careful tool selection, optimized spindle speeds, and proper coolant are essential to maintain precision and reduce tool wear.
Advantages
- High strength and wear resistance – ideal for load-bearing parts
- Excellent corrosion resistance – suitable for marine, medical, and chemical applications
- High heat tolerance – performs well in extreme environments
- Clean, professional finish – functional and aesthetic Disadvantages
Disadvantages
- Harder to machine – increases tool wear and processing time
- Higher cost – material and machining
- May require specialized tooling – especially for high-precision parts
- Risk of work hardening – requires optimized parameters
Surface Finishing Options for CNC Machined Parts
To improve the appearance and performance of your CNC machined stainless steel components, we offer a variety of surface finishing services. Whether you need a clean matte surface, enhanced aesthetics, or clear part labeling, our finishing options ensure to meet your SS machining parts.
Standard finish with visible tool marks; suitable for functional prototypes and internal components.
Uses abrasive media to create a uniform matte or satin finish; also improves coating adhesion on plastic or metal surfaces.
Adds logos, text, or identification marks via silk screen or pad printing, ideal for branding or part tracking.
Removes machining marks and evens out surface texture; ideal for prototypes and parts where appearance is not critical.
Painting and powder coating provide colorful, durable, and corrosion-resistant finishes.
Deposits metal layers such as nickel or chrome on parts, improving wear resistance, conductivity, and aesthetic quality.
Produces a smooth, glossy finish; commonly applied to plastics like PC or PMMA for enhanced clarity and premium look.
Chemical treatment for ferrous metals, creating a dark, corrosion-resistant surface with minimal thickness.
Electrochemical process for aluminum that enhances corrosion and wear resistance, with options for colored finishes.
Jiangzhi CNC Stainless Steel Parts Are Guaranteed
Because of its strength, temperature resistance, and excellent corrosion properties, CNC stainless steel machining is ideal for critical or long-life parts.
Yes, compared to aluminum. It requires slower feeds/speeds, proper tooling, and optimized strategies to avoid work hardening.
Absolutely. Our SS CNC service regularly achieves ±0.01 mm tolerances for high-performance applications.
Yes. Our engineers review your drawings to ensure your CNC stainless parts are optimized for performance, cost, and manufacturability.
