Mat.No. 1.7733, DIN 24CrMoV5-5

Mat.No. 1.7733, DIN 24CrMoV5-5

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Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI PO766 766 1.7733 24CrMoV5-5 - - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.24 0.25 0.45 1.35 0.55 max. 0.60 0.20 - - DescriptionSpecial structural steel. ApplicationsComponent parts for steam turbines, e.g., shafts, discs, blades, etc.  Physical properties (avarage values) at ambient temperatureModulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.80 Continuous Cooling...


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Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI
PO766 766 1.7733 24CrMoV5-5 - -

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.24 0.25 0.45 1.35 0.55 max. 0.60 0.20 - -

Description
Special structural steel.

Applications
Component parts for steam turbines, e.g., shafts, discs, blades, etc. 

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

Continuous Cooling Transformation (CCT) Diagram


Click the image to enlarge the diagram.

Soft Annealing
Heat to 650-740oC, cool slowly.

Hardening
Harden from a temperature of 900-950oC followed by oil or air quenching.

Tempering
Tempering temperature: 680-740oC.

Mechanical Properties in Quenched and Tempered Condition

Diameter (mm) 0.2 proof stress (N/mm2) Tensile stregth (N/mm2) Elongation (%) Reduction (%) Notch impact energy (ISO-V) (J)
Up to 160 540 690-830 17 - 55

0.2 Proof Stress (N/mm2) vs. Temperature (oC)

200oC 300oC 400oC 500oC
490 451 402 343

1% Creep Limit (N/mm2) vs. Temperature (oC)

Hours 450oC 500oC 540oC
10 000 324 206 102
100 000 265 137 56

Creep Rapture Strength (N/mm2) vs. Temperature (oC)

Hours 450oC 500oC 540oC
10 000 412 284 170
100 000 324 191 80

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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