Shenzhen Perfect Precision Product Co., Ltd.
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Product Specification
| High Light | Custom CNC Machined Parts ，High Precision CNC Turning Parts ，Corrosion Resistant Precision Stainless Steel Parts | ||
Custom precision stainless steel parts are CNC machined or turned components manufactured from stainless steel grades including 303, 304, 316, or 17-4PH. These parts are widely utilized across multiple industries:
Key advantage: Excellent corrosion resistance combined with dimensional stability under tight tolerances.
Project: Food-grade valve component
Material: SUS316
Process: CNC turning + milling + polishing
Technical Insight: Stainless steel is prone to work hardening—tool selection and cutting strategy are critical for successful machining.
| Grade | Best For | Key Feature |
|---|---|---|
| 303 | High-speed machining | Easy to machine |
| 304 | General industrial use | Balanced performance |
| 316 | Marine / food / medical | Superior corrosion resistance |
| 17-4PH | Aerospace / high strength parts | Heat-treatable, high strength |
Buyer Tip: If your part is exposed to chemicals or moisture, 316 stainless steel is often worth the extra cost.
Common Issue: Over-specifying tolerance increases cost by 20-50% unnecessarily.
| Finish Type | Roughness (Ra) | Application |
|---|---|---|
| As-machined | 1.6-3.2 μm | Internal components |
| Fine machining | 0.8-1.6 μm | General visible parts |
| Polishing | ≤0.8 μm | Medical / food-grade |
Before choosing a supplier, confirm they offer:
Real Issue: 40% of quality disputes come from insufficient inspection capability, not machining errors.
Pain Point Solved: Rust spots on stainless parts are often due to missing passivation, not poor material quality.
| Factor | Stainless Steel | Aluminum |
|---|---|---|
| Strength | Higher | Medium |
| Corrosion Resistance | Excellent | Good |
| Machinability | Lower | High |
| Cost | Higher | Lower |
Conclusion: Choose stainless steel for durability and corrosion resistance, aluminum for lightweight applications and cost efficiency.
Before placing an order, request the following documentation:
Company Details
Business Type:
Manufacturer
Year Established:
2012
Total Annual:
10000000-10000000
Employee Number:
100~200
Ecer Certification：
Verified Supplier
We are CNC Machining manufacturer, customized high precision parts, Tolerance: +/-0.01 mm, Special area: +/-0.002 mm. Certificate ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. We can produce mechanica... We are CNC Machining manufacturer, customized high precision parts, Tolerance: +/-0.01 mm, Special area: +/-0.002 mm. Certificate ISO9001:2015,AS9100D,ISO13485:2016,ISO45001:2018,IATF16949:2016,ISO14001:2015,ROSH,CE etc. We can produce mechanica...
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