Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI ZF7 770 - 20MnCr5 - - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.16 max. 0.40 1.15 1.15 max. 0.12 max. 0.30 - - max.Al=0.035, max.Cu=0.30 DescriptionSpecial structural steel. ApplicationsHigher stressed components for automobile industry – gears, shafts, crankshafts, connecting rods, cam shafts, etc. Physical properties (avarage values) at ambient temperatureModulus of elastici...
Designation by Standards
|Brand Name||Ravne No.||Mat. No.||DIN||EN||AISI|
Chemical Composition (in weight %)
|0.16||max. 0.40||1.15||1.15||max. 0.12||max. 0.30||-||-||max.Al=0.035, max.Cu=0.30|
Special structural steel.
Higher stressed components for automobile industry – gears, shafts, crankshafts, connecting rods, cam shafts, etc.
Physical properties (avarage values) at ambient temperature
Modulus of elasticity [103 x N/mm2]: 210
Density [g/cm3]: 7.85
Heat to 680-710oC, cool slowly. This will produce a maximum Brinell hardness of 217.
Harden from a temperature of 810-840oC followed by oil quenching or hot quenching 180-220oC.
Tempering temperature: 150-180oC.
Hot forming temperature: 1050-850oC.
Component parts for the automobile industry – shafts, steering and driving parts.
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.