General Information for Material HS 21
| Material Group |
S - Superalloys (Heat resistant and Titanium) |
| Sub-Group |
Superalloy |
| Tensile Strength |
[N/mm^2] |
| Machinability Range |
6% - 19% |
Equivalent International Designations for Material HS 21
| Standard |
Name |
| SAE |
ASTM F-75 |
| ANFOR |
KC27D5NFe |
| DIN |
CoCr28Mo |
| BS |
3531 |
Chemical Composition for Material HS 21
| Element |
Amount |
| Nickel (Ni) |
3% |
| Chromium (Cr) |
27% |
| Cobalt (Co) |
62% |
| Iron (Fe) |
1% |
| Molybdenum (Mo) |
5% |
| Silicon (Si) |
0.6% |
| Manganese (Mn) |
0.6% |
| Titanium (Ti) |
0.3% |
| Carbon (C) |
0.2% |
Cutting Speeds Recomendations for Material HS 21
| Application |
Vc (m/min) |
Vc (SFM) |
| Turning |
25-75 |
80-250 |
| Milling |
20-55 |
70-180 |
| Parting |
15-50 |
50-160 |
| Grooving |
20-65 |
70-210 |
| Drilling |
20-65 |
70-210 |
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 HS 21
Grade for Milling (Indexable)
Recommended Insert Cutting Edge Geometry for Material HS 21
| 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 |
