DIN 1.7038 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: 6

Update History

2024-12 2020-12 2019-06 2018-09 2018-08

This material has 602 properties — only a subset is shown here.

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DIN 1.7038 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.34 – 0.41

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

0.90 – 1.20

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

0.60 – 0.90

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 1.7038 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 602 properties — only a subset is shown here.

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DIN 1.7038 Heat Treatments

Austenitizing (quenching in oil or water): 825-865°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: 540-680°C, (at least 60 min); End quench test: 850±5°C.
Austenitizing (quenching in water or oil): 825-865°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: 540-680°C, t > 60 min. A mandatory end quench test shall be carried out at 850+/- 5°C.

DIN 1.7038 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

750 — 1150 MPa

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Elongation, A

11 %

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Reduction of Area

val1 %

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Impact Energy

val1 J

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Brinell Hardness (HB)

≤ 255

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Rockwell Hardness (HR)

val1

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Grain Size

val1

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201 Cross References

45 Composition
139 Mechanical Properties
3 Physical Properties
10 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
- Formability
5 Fatigue
- Fracture
- Creep

- Joints
- Coatings
46 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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