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Mat.No. 1.2327/DIN 86CrMoV7

Low alloyed cold working tool steel.
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  • Mat.No. 1.2327/DIN 86CrMoV7

Designation by Standards

Mat. No.DINENAISI
1.232786CrMoV7--


Chemical Composition (in weight %)

CSiMnCrMoNiVWOthers
0.870.300.381.750.280.130.10--


Applications
Cold rolls, back-up rolls, straightening rolls, non-ferrous 2 and 4 high roll mills.

Physical properties (average values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.85
Thermal conductivity [W/m.K]: 35.0
Electric resistivity [Ohm mm2/m]: 0.30
Specific heat capacity[J/g.K]: 0.46

Coefficient of Linear Thermal Expansion 10-6 oC-1

20-100oC20-200oC20-300oC20-400oC20-500oC
12.513.213.614.014.3


Soft Annealing

Heat to 720-750oC, 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 approx. 650
oC, holding for 1-2 hours at heat, followed by air cooling. This operation is performed to reduce distortion during heat treatment.

Hardening
Harden from a temperature of 800-820
oC, 830-850oC followed by water or oil quenching. Hardness after quenching is 64-67 HRC.

Tempering
Tempering temperature: 200-600oC.

Tempering Temperature (oC) vs. Hardness (HRC)

100oC200oC300oC400oC
656158-


Forging
Hot forming temperature: 1150-850oC.


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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