General Information for Steel A350LF2
| Material Group |
P - Steel |
| Sub-Grou |
Low Alloy Steel |
| Hardness |
197.0 HB |
| Tensile Strengt |
660[N/mm^2] |
| Machinability |
73% |
MACHINABILITY OF A350LF2 STEEL
Steel A350LF2 is a low-alloy steel with a carbon content of 0.3% and additional 1.8% content of manganese, chromium, nickel, and molybdenum. (See details in the table below). Steel A350LF2 has a machinability rating of 73%.
Low alloy steels are very popular in machine shops. The small amount of alloying elements enhances their mechanical properties and hardenability without a significant sacrifice in terms of machinability.
SUMMARY:
For general turning of Steel A350LF2 at stable conditions use a grade with a hard substrate and CVD coating.
In case you are running at a cutting speed that is lower than 490 SFM (150 m/min), it is better to use a grade with a hard substrate and PVD coating.
For general milling use the grade with a semi-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 890 - 1210 [SFM] / 270 - 370 [m/min].
Recommended cutting speed range for milling with stable clamping and short over hang is 560 - 750 [SFM] / 170 - 230 [m/min]
For detailed cutting speed recommendations, check the table below.
Equivalent International Designations for Steel A350LF2
| Standard |
Name |
| UNS |
K03504 |
| ANFOR |
A48FP |
Chemical Composition for Steel A350LF2
| Element |
Amount |
| Manganese (Mn) |
0.6-1.35% |
| Nickel (Ni) |
0.4% |
| Copper(Cu) |
0.4% |
| Chromium (Cr) |
0.3% |
| Carbon (C) |
0.3% |
| Silicon(Si) |
0.15-0.30% |
| Molybdenum (Mo) |
0.12% |
| Sulfur (S) |
0.004% |
| Phosphorus(P) |
0.035% |
Cutting Speeds Recomendations for Steel A350LF2
| Application |
Vc (m/min) |
Vc (SFM) |
| Turning |
270-370 |
890-1210 |
| Milling |
170-230 |
560-750 |
| Parting |
130-175 |
430-570 |
| Grooving |
150-205 |
490-670 |
| Drilling |
110-145 |
360-480 |
Important! The speed estimation is given for an ideal situation:
- Most suitable carbide grade
- Stable tool clamping
- Stableworkpiece clamping
- Goodqualityraw material
- Ashort overhangof the cutting tool.
- Nominalhardnessof the material.
- etc.
Recommended Carbide Grades for Steel A350LF2
Grade for Milling (Indexable)
Recommended Insert Cutting Edge Geometry for Steel A350LF2
| 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" |
