Designation by Standards
| Brand Name |
Ravne No. |
Mat. No. |
DIN |
EN |
AISI |
| OA2 |
860 |
1.2363 |
X100CrMoV5-1 |
- |
A2 |
Chemical Composition (in weight %)
| C |
Si |
Mn |
Cr |
Mo |
Ni |
V |
W |
Others |
| 1.00 |
0.25 |
0.60 |
5.15 |
1.05 |
- |
0.20 |
- |
- |
Description
This alloy is one of the cold work, medium air hardening type tool steels. It contains chromium and molybdenum with a relatively high (1 %) carbon content and is capable of deep hardening from air quench so as to minimize distortion.
Applications
Used of die shapes, slitters, cutting, stamping, injection tools and similar applications where wear resistance is important
Physical properties (avarage values) at ambient temperature
Density [g/cm
3]: 7.70
Thermal conductivity [W/m.K]: 26.0
Coefficient of Linear Thermal Expansion 10-6 oC-1
| 20-100oC |
20-200oC |
20-300oC |
20-400oC |
20-500oC |
20-600oC |
20-700oC |
| 11.7 |
12.9 |
13.3 |
13.8 |
14.2 |
14.6 |
14.9 |
Continuous Cooling Transformation (CCT) Diagram
Click the image to enlarge the diagram.
Time-Temperature Transformation (TTT) Diagram
Click the image to enlarge the diagram.
Soft Annealing
Heat to 800-840
oC, cool slowly in furnace. This will produce a maximum Brinell hardness of 230.
Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to
650
oC, holding for one hour at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.
Hardening
Harden from a temperature of 930-970
oC followed by air, oil, warm bath (500-550
oC) quenching. Hardness after quenching is 63 HRC.
Tempering
Tempering temperature: 150-550
oC
Tempering Temperature (oC) vs. Hardness (HRC)
| 100oC |
200oC |
300oC |
400oC |
500oC |
600oC |
700oC |
| 63 |
62 |
58 |
57 |
57 |
51 |
36 |
Tempering Diagram
Click the image to enlarge the diagram.
Forging
Hot forming temperature: 1050-850
oC.
Machinability
Machinability is medium, about 85 % that of the W group of tool steels which are rated at 100% for a baseline.
Corrosion Resistance
Corrosion resistance of this alloy is better than that of plain carbon steels. However it will rust unless given protective treatment.
Welding
This is an alloy steel and thus capable of being welded. Consult the alloy supplier for welding procedures.
Forms manufactured: Please see the
Dimensional Sales Program.
Disclaimer
The information and data presented herein are typical or average values and are not a guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other puposes. There is no representation that the recipient of this literature will receive updated editions as the become available.
Unless otherwise specified, registered trademarks are property of Metal Ravne company. Copyright 2011 by Metal Ravne. All rights reserved.
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