General Information for Steel 52100
| Material Group |
P-Steel |
| Sub-Grou |
Low Alloy Steel |
| Tensile Strengt |
650-750 [N/mm^2] |
| Machinability |
40% |
MACHINABILITY OF 52100 STEEL
SAE 52100 (DIN 100Cr6) is a chromium high carbon steel produced with about 1% carbon and 1.35–1.6% chromium content. It has excellent hardenability and wear resistance. 52100 (100Cr6) steel is used mainly on ball bearings, roller bearings, and other parts requiring high hardness (It is also nicknamed "Bearing Steel").
Hardness level:
300 HB - Anealed.
400-650 HB- After heat treatment.
The average machinability rating of 52100 (100Cr6) bearing steel is around 40% (Annealed condition).
SUMMARY:
For turning operations on 52100 (100Cr6), it is best to use inserts with thick CVD coating over a hard substrate. For milling, a hard carbide grade is suitable
For detailed carbide grades recommendations,check the table below.
Recommended Cutting speed range for turning at stable conditions is 490 - 660 [SFM] / 150 - 200 [m/min].
Recommended Cutting speed range for milling with stable clamping and short overhang is 300 - 410 [SFM] / 90 - 125 [m/min]
For detailed cutting speed recommendations,check the table below.
Equivalent International Designations for Steel 52100
| Standard |
Name |
| SAE |
52100 |
| WNR |
1.3505 |
| DIN |
100Cr6 |
| BS |
534A99 |
| SS |
2258 |
| ANFOR |
100C6 |
| UNI |
100Cr6 |
| UNF |
F.131 |
| JS1 |
SUJ2 |
Chemical Composition for Steel 52100
| Element |
Amount |
| Manganese(Mn) |
.25-.45% |
| Chromium(Cr) |
1.35-1.60% |
| Carbon(C) |
.93-1.05% |
| Phosphorus(P) |
0.025% |
| Sulfur(S) |
0.015% |
Cutting Speeds Recomendations for Steel 52100
| Application |
VC(m/min) |
Vc(SFM) |
| Turning |
150-200 |
490-660 |
| Milling |
90-125 |
300-410 |
| Parting |
70-95 |
230-310 |
| Grooving |
85-115 |
280-380 |
| Drilling |
60-80 |
200-260 |
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 Steel 52100
Grade for Milling (Indexable)
Recommended Insert Cutting Edge Geometry for Steel 52100
| Honing Siz |
0.05-0.08 mm / 0.002-0.003" |
| Rake Angl |
11° -13° |
| Land Angl |
Positive |
| Land Widt |
0.20-0.30 mm / 0.008-0.012" |
