DIN Ck 45 Structural and constructional steels

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
2015-12

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DIN Ck 45 Chemical Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
0.4200 – 0.5000
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Mn
VALUE
0.5000 – 0.8000
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
P
VALUE
≤ 0.0350
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

DIN 1652-4: 1990 / Bright steel made from steel for quenching and tempering; technical delivery conditions

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DIN Ck 45 Physical Properties


Temperature

PROPERTY / VALUE
Modulus of Elasticity
190 — 210 GPa
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Dynamic Modulus of Elasticity
212 GPa
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Density
7.67 — 7.86 kg/dm³
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Poisson Coefficient
val1
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This material has 2345 properties — only a subset is shown here.

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DIN Ck 45 Heat Treatments

  • Annealing: 650-700°C; Normalizing: 840-870°C; Hardening in water: 820-850°C; Hardening in oil: 830-860°C; Tempering: 540-680°C
  • Hot working: 1100-850°C; Soft annealing: 650-700°C; Normalizing: 840-870°C; Hardening in water: 820-850°C; Hardening in oil: 830-860°C; Tempering: 550-660°C

DIN Ck 45 Mechanical Properties


Temperature

PROPERTY / VALUE
Yield Strength, Rp0.2
val1
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MPa
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Tensile Strength
570 — 900 MPa
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Elongation, A
4 %
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Reduction of Area
val1
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%
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Impact Energy
val1
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J
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Brinell Hardness (HB)
163 — 217
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  • 178 Mechanical Properties
  • 17 Physical Properties
  • 7 Heat Treatment
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  • 43 Fatigue
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