Mat.No. 1.7038, DIN 37CrS4, AISI 5135
Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI 37CRS4 791 1.7038 37CrS4 - 5135 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.38 max. 0.40 0.75 1.05 - - - - - DescriptionAlloy special structural steel. ApplicationsLow and moderately stressed components for automobile industry and mechanical engineering – shafts, connecting rods, crankshafts, screws. Physical properties (avarage values) at ambient temperatureModulus of elasticit...
Designation by Standards
|Brand Name||Ravne No.||Mat. No.||DIN||EN||AISI|
Chemical Composition (in weight %)
Alloy special structural steel.
Low and moderately stressed components for automobile industry and mechanical engineering – shafts, connecting rods, crankshafts, screws.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.80
Heat to 680-720oC, cool slowly. This will produce a maximum Brinell hardness of 235.
Harden from a temperature of 825-865oC followed by oil or water quenching.
Tempering temperature: 540-680oC.
Mechanical Properties in Quenched and Tempered Condition
|Diameter (mm)||0.2 proof stress (N/mm2)||Tensile stregth (N/mm2)||Elongation (%)||Reduction (%)||Impact energy (J)|
|Up to 16||750||950-1150||11||35||30|
Diagram Tempering Temperature – Mechanical Properties
Click the image to enlarge the diagram.
Hot forming temperature: 1050-850oC.
Forms manufactured: Please see the Dimensional Sales Program.
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.