DIN C50R Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2024-12

Total number of updates: 6

Update History

2024-10 2019-06 2018-10 2018-09 2018-08

This material has 932 properties — only a subset is shown here.

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DIN C50R Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.47 – 0.55

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

≤ 0.40

UNIT

CAS NUMBER

7440-47-3

CRITERIA

Cr+Mo+Ni

VALUE

≤ 0.63

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-02-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

EN 10083-1: 1991 / Quenched and tempered steels - Part 1: Technical delivery conditions for special steels (includes amendment A1:1996)

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DIN C50R Physical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

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Density

7.67 — 7.86 kg/dm³

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Poisson Coefficient

0.27 — 0.3

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This material has 932 properties — only a subset is shown here.

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DIN C50R Heat Treatments

Hardening: 810-850°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.);
Quenching agent: Oil or water (Other quenching agents such as synthetic quenchants may also be used.);
Tempering: 550-660°C (Time for tempering as a guide: at least 1h.);
End quench test austenitizing: 850 ± 5°C (Time for austenitizing as a guide: 30-35 min.);
Normalizing: 830-870°C.
Austenitizing (quenching in water or oil): 810-850°C, t > 30 min. NOTE: The temperatures at the lower end of the range are generally applicable to hardening in water and those at the upper end for hardening in oil. Synthetic quenchants may also be used. Tempering: 550-660°C, t > 60 min. A mandatory end quench test shall be carried out at 850+/- 5°C. Normalizing: 830-870°C, t > 30 min.

DIN C50R Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

590 — 1100 MPa

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Elongation, A

5 %

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Reduction of Area

val1 %

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Brinell Hardness (HB)

179 — 269

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Rockwell Hardness (HR)

val1

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Grain Size

val1

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399 Cross References

57 Composition
201 Mechanical Properties
3 Physical Properties
6 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
- Formability
10 Fatigue
- Fracture
- Creep

- Joints
- Coatings
6 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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