Mat.No. 1.7003, DIN 38Cr2, AISI 5140

Mat.No. 1.7003, DIN 38Cr2, AISI 5140

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Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI 38CR2 776 1.7003 38Cr2 - 5140 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.38 max. 0.40 0.65 0.50 - - - - - DescriptionAlloy special structural steel. ApplicationsCold forging steel grade used for stressed parts for machines, vehicles, quenched and tempered screws etc.  Physical properties (avarage values) at ambient temperatureModulus of elasticity [103 x N/mm2]: 210 Density ...


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Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI
38CR2 776 1.7003 38Cr2 - 5140

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.38 max. 0.40 0.65 0.50 - - - - -

Description
Alloy special structural steel.

Applications
Cold forging steel grade used for stressed parts for machines, vehicles, quenched and tempered screws etc. 

Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210 
Density [g/cm3]: 7.85

Soft Annealing
Heat to 650-720oC, cool slowly. This will produce a maximum Brinell hardness of 207.

Normalizing
Temperature: 850-880oC.

Hardening
Harden from a temperature of 830-870oC followed by water or oil quenching.

Tempering
Tempering temperature: 540-680oC.

Diagram Tempering Temperature – Mechanical Properties


Click the image to enlarge the diagram.

Forging
Hot forming temperature: 1100-850oC. 

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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