General Information for Material Hastelloy X
| Material Group |
S - Superalloys (Heat resistant and Titanium) |
| Sub-Group |
Superalloy |
| Hardness |
88.0 HRB |
| Tensile Strength |
510[N/mm^2] |
| Machinability Range |
18% |
MACHINABILITY OF HASTELLOY X MATERIAL
Hastelloy X, a trademark of haynes international, is a nickel-based alloy (47% Ni) classified as a nickel-chromium-iron-molybdenum alloy that possesses an exceptional combination of oxidation resistance, fabricability, and high-temperature strength.
It is used on aircraft, furnaces, and chemical process components such as gas turbine engines and combustion zone components.
Machining hastelloy is like other nickel-based superalloys with moderate hardness (like Inconel 625, for example). It should be machined with positive and sharp cutting edges. Geometries that are suitable for austenitic stainless steel will also work well on hastelloy. However, it is better to use geometries and grades that are specially designed for superalloys.
The machinability rating of Hastelloy X is about 18%.
SUMMARY:
For general turning of material hastelloy X at stable conditions use a grade with a very hard substrate and thin PVD coating.
For general milling use a grade with a semi hard substrate and PVD coating.
For detailed carbide grades recommendations, check the table below.
Recommended Cutting speed range for turning at stable conditions is 200 - 280 [SFM] / 60 - 85 [m/min].
Consider using CBN inserts. Although they cost more than twice, they enable increasing the cutting speed by 2-4 times (relative to carbide).
Recommended cutting speed range for milling with stable clamping and short overhang is 150 - 200 [SFM] / 45 - 60 [m/min]
For detailed cutting speed recommendations, check the table below.
Equivalent International Designations for Material Hastelloy X
| Standard |
Name |
| SAE |
5536 |
| WNR |
2.4603 |
| DIN |
NiCr22FeMo |
| UNS |
UNS N06002 |
| BS |
HR6, 204 |
| ANFOR |
NC22FeD |
Chemical Composition for Material Hastelloy X
| Element |
Amount |
| Nickel (Ni) |
48.6% |
| Iron (Fe) |
18.5% |
| Chromium (Cr) |
21.8% |
| Coblat (co) |
1.5% |
| Carbon (C) |
0.1% |
| Molybdenum (Mo) |
9% |
| Tungsten (W) |
0.6% |
Cutting Speeds Recomendations for Material Hastelloy X
| Application |
Vc (m/min) |
Vc (SFM) |
| Turning |
60-85 |
200-280 |
| Milling |
45-60 |
150-200 |
| Parting |
40-50 |
130-160 |
| Grooving |
55-70 |
180-230 |
| Drilling |
55-70 |
180-230 |
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 Hastelloy X
Grade for Milling (Indexable)
Recommended Insert Cutting Edge Geometry for Material Hastelloy X
| 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 |
