General Information for Material 21-6-9
| Material Group |
S - Superalloys (Heat resistant and Titanium) |
| Sub-Group |
Superalloy |
| Hardness |
390.0 HB |
| Tensile Strength |
600 [N/mm^2] |
| Machinability Range |
0% |
Equivalent International Designations for Material 21-6-9
| Standard |
Name |
| SAE |
ASTM A666 |
Chemical Composition for Material 21-6-9
| Element |
Amount |
| Iron (Fe) |
62% |
| Nickel (Ni) |
6.5% |
| Manganese (Mn) |
9% |
| Silicon (Si) |
| 1% |
| Carbon (C) |
0.08% |
| Chromium (Cr) |
21% |
Cutting Speeds Recomendations for Heat resistant Fe Based
| Application |
Vc (m/min) |
Vc (SFM) |
| Turning |
100-200 |
330-660 |
| Milling |
75-150 |
250-490 |
| Parting |
65-125 |
210-410 |
| Grooving |
90-175 |
300-570 |
| Drilling |
90-175 |
300-570 |
Important! The speed estimation is given for an ideal situation:
- Most suitable carbide grade
- Stable tool clamping
- Stable workpiece clamping
- Good quality raw material
- A short overhang of the cutting tool.
- Nominal hardness of the material.
- etc.
Recommended Carbide Grades for Material 21-6-9
Grade for Milling (Indexable)
Recommended Insert Cutting Edge Geometry for Material 21-6-9
| Honing Size |
0.02-0.05 mm / 0.001-0.002" |
| Rake Angle |
13° -18° |
| Land Angle |
Neutral |
| Land Width |
0.10-0.20 mm / 0.004-0.008" |
| Ground Insert |
Recommended |
