Steel CT198

Steel CT198

Short Description:

Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI CT198 198 - - - - Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.25 0.25 0.60 1.35 0.20 2.95 - - max. Cu = 0.15 DescriptionSpecial structural steel. ApplicationsHighly stressed, case hardened dies for artificial resin, of low deforming.  Physical properties (avarage values) at ambient temperatureModulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.80 Soft AnnealingHeat to...


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Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI
CT198 198 - - - -

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.25 0.25 0.60 1.35 0.20 2.95 - - max. Cu = 0.15

Description
Special structural steel.

Applications
Highly stressed, case hardened dies for artificial resin, of low deforming. 

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

Soft Annealing
Heat to 680-700oC, cool slowly. This will produce a maximum Brinell hardness of 260.

Normalization
Temperature: 900oC, air.

Hardening
Harden from a temperature of 840-870oC followed by oil or air quenching.

Tempering
Tempering temperature: Please see the data bellow.

Tempering Diagram


Click the image to enlarge the diagram.

Mechanical Properties vs. Temperature

Temperature 0.2 % proof stress (N/mm2) Tensile strength (N/mm2) Elongation (%) Reduction of area (%) Notch impact energy (ISO-V) (J)
100oC 1650 1720 10.5 51.0 60
150oC 1630 1680 11.5 54.0 63
200oC 1610 1650 10.5 53.0 60
250oC 1430 1520 11.5 56.0 53
300oC 1420 1480 11.0 58.0 48.0
350oC 1370 1420 10.0 58.0 52.0
400oC 1295 1350 10.5 58.0 56.0
450oC 1235 1280 11.0 59.0 62.0
500oC 1120 1180 12.0 60.0 84.0
550oC 955 1040 14.0 64.0 112.0
600oC 835 940 15.5 64.0 124.0

Forging
Hot forming temperature: 1050-850oC. 

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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