General Information for Stainless Custom 465
| Material Group |
M - Stainless Steel |
| Sub-Group |
Austenitic Stainless Steel |
| Tensile Strength |
1300-1700 [N/mm^2] |
| Machinability Range |
30% |
MACHINABILITY OF CUSTOM 465 STAINLESS STEEL
Custom 465 is a martensitic, age-hard enable stainless steel alloy with a high nickel concentration of 11% and chromium of 12%. It has improved tensile strength and fracture toughness compared to 17-4PH, which makes it an excellent choice for aerospace components that require these properties. Custom 465 has almost the same corrosion resistance as stainless 304.
It was developed for components where the properties of 174-PH and 15-5PH are not enough; however, it has poor machinability of about 30% (compared with about 45% of the more common PH alloys).
Summary:
Due to its hardness and low cutting speed, it is best to machine it with a carbide grade that has a very hard substrate and thin PVD coating.
For detailed carbide grades recommendations, check the table below.
Recommended Cutting speed range for turning at stable conditions is 360 - 490 [SFM] / 110 - 150 [m/min].
Recommended Cutting speed range for milling with stable clamping and short overhang is 230 - 310 [SFM] / 70 - 95 [m/min]
For detailed cutting speed recommendations, check the table below.
Equivalent International Designations for Stainless Custom 465
| Standard |
Name |
| sae |
AMS 5936 |
| uns |
S46500 |
Chemical Composition for Stainless Custom 465
| Element |
Amount |
| Chromium (Cr) |
12% |
| Nickel (Ni) |
11% |
| Titanium (Ti) |
1.5-1.8% |
| Molybdenum (Mo) |
0.8-1.2% |
Cutting Speeds Recomendations for Stainless steel - Austenitic
| Application |
Vc (m/min) |
Vc (SFM) |
| Turning |
110-150 |
360-490 |
| Milling |
70-95 |
230-310 |
| Parting |
45-60 |
150-200 |
| Grooving |
65-90 |
210-300 |
| Drilling |
30-45 |
100-150 |
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 Stainless Custom 465
Grade for Milling (Indexable)
Recommended Insert Cutting Edge Geometry for Stainless Custom 465
| Honing Size |
0.03-0.05 mm / 0.001-0.002" |
| Rake Angle |
9°-11° |
| Land Angle |
Positive |
| Land Widt |
0.20-0.30 mm / 0.008-0.012" |
