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Mat.No. 1.2604/DIN 73WCrMoV2-2

Low alloyed cold working tool steel.
Applications:
Tap drills, broaching tools, milling cutters and other cutting tools. It is usually supplied as silver steel.
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  • Mat.No. 1.2604, DIN 73WCrMoV2-2

Designation by Standards

Mat. No. DIN EN AISI
1.2604 73WCrMoV2-2 - -


Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.73 0.30 0.50 0.50 0.33 - 0.23 0.55 -


Description
Low alloyed cold working tool steel.

Applications
Tap drills, broaching tools, milling cutters and other cutting tools. It is usually supplied as silver steel.

Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.80

Soft Annealing
Heat to 680-710oC, cool slowly. This will produce a maximum Brinell hardness of 225.


Hardening
Harden from a temperature of 810-840oC followed by oil quenching.Hardness after quenching is 63 HRC.


Tempering
Tempering temperature: 180-300oC.


Forging
Hot forming temperature: 1050-900oC.


Machinability
The machinability rating of D3 is roughly 25 % that of free machining carbon steel 1018. Due to its abrasion resistant nature, machining in the hardened condition should be limited to finish grinding.


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 purposes. There is no representation that the recipient of this literature will receive updated editions as it becomes available.


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