Mat.No. 1.7139, DIN 16MnCrS5, SAE 5117

Mat.No. 1.7139, DIN 16MnCrS5, SAE 5117

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Designation by Standards Brand Name Ravne No. Mat. No. DIN EN AISI 16MNCRS5 779 1.7139 16MnCrS5 - SAE 5117 Chemical Composition (in weight %) C Si Mn Cr Mo Ni V W Others 0.16 max. 0.40 1.15 0.95 - - - - - DescriptionAlloy special structural steels. ApplicationsComponent parts for steam boilers and turbines, shafts for higher temperature ranges. Physical properties (avarage values) at ambient temperatureModulus of elasticity [103 x N/mm2]: 210 Density [g/cm3]: 7.85 Co...


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Designation by Standards

Brand Name Ravne No. Mat. No. DIN EN AISI
16MNCRS5 779 1.7139 16MnCrS5 - SAE 5117

Chemical Composition (in weight %)

C Si Mn Cr Mo Ni V W Others
0.16 max. 0.40 1.15 0.95 - - - - -

Description
Alloy special structural steels.

Applications
Component parts for steam boilers and turbines, shafts for higher temperature ranges.

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

Continuous Cooling Transformation (CCT) Diagram


Click the image to enlarge the diagram.

Time-Temperature Transformation (TTT) Diagram


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Soft Annealing
Heat to 650-700oC, cool slowly. This will produce a maximum Brinell hardness of 207.

Heat Treatment

Treatment Temperature Cooling
Case hardening 880-980oC Oil (water), hot bath 160-250oC
Carburising 880-980oC Salth bath (580-680oC), case hardening box
Direct hardening 880-980oC Oil (water), hot bath 160-250oC
Core refining 860-900oC Oil (water), hot bath 160-250oC
Core refining 780-820oC Oil (water), hot bath 160-250oC

Tempering
Tempering temperature: 150-200oC, air.

Hardness in Various Treated Conditions
Treated for stregth: 156-207 HB
Soft Annealed: 207 HB
Annealed to spherical carbides: max. 165 HB
Treated to pearlite structure: 140-187 HB

Distance From Quenched End in mm

mm 1.5 3 5 7 9 11 13 15 20 25 30 35 40
H max. 47 46 44 41 39 37 35 33 31 30 29 28 27
H min. 39 36 31 28 24 21 - - - - - - -
HH max. 47 46 44 41 39 37 35 33 31 30 29 28 27
HH min. 42 39 35 32 29 26 24 22 20 - - - -
HL max. 44 43 40 37 34 32 30 28 26 25 24 23 22
HL min. 39 36 31 28 24 21 - - - - - - -

Forging
Hot forming temperature: 1150-850oC. 

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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