C55 (Germany / DIN) Material Properties

Other designations:
Material group: Ferrous Alloys / Structural and constructional steels
Country/Standard: Germany / DIN

Data updates

Latest Update: 2019-06
Total number of updates: 2
Update History:
2018-10

Mechanical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Tensile Strength 490 — 1650 MPa view details
Elongation, A 5 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) 181 — 269 view details
Vickers Hardness (HV) val1
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view details
Yield Strength, Rp0.2 val1
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ksi view details
Tensile Strength 71.1 — 239.3 ksi view details
Elongation, A 5 % view details
Reduction of Area val1
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% view details
Brinell Hardness (HB) 181 — 269 view details
Vickers Hardness (HV) val1
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view details

Physical Properties

Temperature

0 - 30°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 210 GPa view details
Density 7.67 — 7.86 kg/dm³ view details
Poisson Coefficient 0.27 — 0.3 view details
Modulus of Elasticity 27.6 E+03 — 30.5 E+03 ksi view details
Density 0.277 — 0.284 lb/in³ view details
Poisson Coefficient 0.27 — 0.3 view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.52 – 0.60
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
≤ 0.40
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Cr+Mo+Ni
VALUE
≤ 0.63
UNIT
%
CAS NUMBER
CRITERIA
Mn
VALUE
val1
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UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

EN 10083-2: 2006 / Steels for quenching and tempering - Part 2: Technical delivery conditions for non alloy steels

Heat Treatments

  • <b> Hardening: </b> 805-845°C (Temperatures at the lower end of the range are generally used for water, and those at the upper end for oil quenching. Time for austenitizing as a guide: at least 30 min.); <br> <b>Quenching agent: </b> Oil or water (Other quenching agents such as synthetic quenchants may also be used.); <br> <b>Tempering: </b> 550-660°C (Time for tempering as a guide: at least 1h.); <br> <b>Normalizing:</b> 825-865°C.
  • Annealing: 650-700°C; Normalizing: 830-860°C; Hardening in water: 805-835°C; Hardening in oil: 815-845°C; Tempering: 540-680°C.