CNC Machining 304 (0Cr18Ni9) — Austenitic Material
This article provides essential information about 304 (0Cr18Ni9), a Austenitic material commonly used in precision CNC machining. Understanding its properties and machining characteristics helps engineers select the right material for demanding manufacturing applications.
Chemical Composition
| Element | Content (%) |
|---|---|
| C | ≤0.08 |
| Si | ≤1.00 |
| Mn | ≤2.00 |
| P | ≤0.045 |
| S | ≤0.030 |
| Cr | 18.0-20.0 |
| Ni | 8.0-10.5 |
Mechanical Properties
| Property | Value |
|---|---|
| Tensile Strength | ≥520 MPa |
| Yield Strength | ≥205 MPa |
| Elongation | ≥40% |
| Hardness | ≤187 HB |
CNC Machining Parameters
| Operation | Speed (m/min) | Feed (mm/rev) | DOC (mm) |
|---|---|---|---|
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| Drilling | {data[‘cutting_drilling’]} | {data[‘feed_drilling’]} | – |
Applications
- Kitchen equipment (sinks, cookware) – hygienic and easy to clean
- Medical instruments – biocompatible and sterilizable
- Architectural trim (handrails, facades) – aesthetic and durable
- Food processing equipment – meets food safety standards
- CNC machined parts – good machinability
CNC Machining Tips
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