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Mat.No. 1.2208, DIN 31CrV3
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Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI 31CRV3 737 1.2208 31CrV3 - - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.31 0.33 0.50 0.55 - - 0.10 - - DescriptionCold work tool steel. ApplicationsSteel used for water hardened machine spanners, screw spanners, screwdrivers. Physical properties (avarage values) at ambient temperatureModulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.85 Continuous Cooling Transform...
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Designation by Standards
| Brand Name | Ravne No. | Mat. No. | DIN | EN | AISI |
| 31CRV3 | 737 | 1.2208 | 31CrV3 | - | - |
Chemical Composition (in weight %)
| C | Si | Mn | Cr | Mo | Ni | V | W | Others |
| 0.31 | 0.33 | 0.50 | 0.55 | - | - | 0.10 | - | - |
Description
Cold work tool steel.
Applications
Steel used for water hardened machine spanners, screw spanners, screwdrivers.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.85
Continuous Cooling Transformation (CCT) Diagram
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Time-Temperature Transformation (TTT) Diagram
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Soft Annealing
Heat to 680-720oC, cool slowly. This will produce a maximum Brinell hardness of 220.
Hardening
Harden from a temperature of 830-860oC followed by water quenching. Hardness after quenching is 52-55 HRC.
Tempering
Please see the data bellow.
Tempering Temperature (oC) vs. Hardness (HRC)
| 100oC | 200oC | 300oC | 400oC |
| 52 | 50 | 47 | 43 |
Forging
Hot forming temperature: 1050-850oC.
Machinability
No data.
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.
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