DIN 1.5531 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2025-01

Total number of updates: 2

Update History

2015-03

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DIN 1.5531 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.0008 – 0.0050

UNIT

CAS NUMBER

7440-42-8

CRITERIA

VALUE

0.27 – 0.33

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

1.15 – 1.45

UNIT

CAS NUMBER

7439-96-5

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 10083-3: 2006 / Steels for quenching and tempering - Part 3: Technical delivery conditions for alloy steels

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DIN 1.5531 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 484 properties — only a subset is shown here.

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DIN 1.5531 Heat Treatments

Austenitizing (quenching in water): 860-900°C, (at least 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: 400-600°C, (at least 60 min); End quench test: 880±5°C.
Hardening: 860-900°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: Water (When choosing the quenching agent, the influence of other parameters, such as shape, dimensions and quenching temperature, on properties and crack susceptibility, should be taken into account. Other quenching agents such as synthetic quenchants may also be used.);
Tempering: 400-600°C (Time for tempering as a guide: at least 60 min.);
End quench test austenitizing: 880 ± 5°C (Time for austenitizing as a guide: 30-35 min.). The given conditions are for guidance. However, the temperatures specified for the end quench test are mandatory.

DIN 1.5531 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

650 MPa

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Tensile Strength

800 — 1150 MPa

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Elongation, A

13 %

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Reduction of Area

val1 %

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Impact Energy

val1 J

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Rockwell Hardness (HR)

val1

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203 Cross References

13 Composition
19 Mechanical Properties
6 Physical Properties
4 Heat Treatment
1 Metallography
- Machinability

4 Stress-Strain
- Formability
- Fatigue
- Fracture
- Creep

- Joints
- Coatings
44 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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