Mat.No. 1.3503, DIN 105Cr4

Designation by Standards

Chemical Composition (in weight %)

Description
Low alloyed Cr cold working tool steel.

Applications
For balls, rollers, links with diameter up to 10-17 mm. 

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

Soft Annealing
Heat to 730-760^oC, cool slowly. This will produce a maximum Brinell hardness of 207.

Normalizing
Temperature: 860-890^oC.

Stress Relieving
Stress relieving to remove machining stresses should be carried out by heating to 600-650^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 790-820, 820-850^oC followed by water or oil quenching or warm bath approx. 400^oC. Hardness after quenching is 65 HRC.

Tempering
Tempering temperature: 150-170^oC.

Tempering Temperature (^oC) vs. Hardness (HRC)

Tempering Diagram

Forging
Hot forming temperature: 1100-850^oC. 

Machinability
No data.

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.