DIN 1.7220 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels, Ferrous Alloys / Cast steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2025-08

Total number of updates: 24

Update History

2025-07 2025-04 2025-01 2024-12 2024-08 2022-08 2021-11 2021-05 2020-08 2020-03 2019-05 2018-12 2018-09 2018-08 2018-01 2017-10 2016-02 2015-06 2015-04 2015-01 2014-09 2014-06 2014-03

This material has 2215 properties — only a subset is shown here.

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DIN 1.7220 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.30 – 0.37

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

7439-98-7

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 10132-3: 2000 / Cold rolled narrow steel strip for heat treatment - Technical delivery conditions - Part 3: Steels for quenching and tempering

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DIN 1.7220 Physical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 211 GPa

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Shear Modulus

val1 GPa

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Dynamic Modulus of Elasticity

val1 GPa

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Density

val1 kg/dm³

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Poisson Coefficient

val1

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Coefficient of Thermal Expansion (CTE)

val1 10^-6/°C

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Thermal Conductivity

39.6 — 42 W/(m∙°C)

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Heat Capacity

val1 J/(kg∙°C)

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Electrical Resistivity

0.18 — 0.263 Ω∙mm²/m

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Electrical Conductivity

val1 S/m

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This material has 2215 properties — only a subset is shown here.

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DIN 1.7220 Heat Treatments

Air Quenched and Tempered Hardening: 880-950°C; Tempering: 600-650°C Liquid Quenched and Tempered (I) Hardening: 880-950°C; Tempering: 600-650°C Liquid Quenched and Tempered (II) Hardening: 880-950°C; Tempering: 550-600°C
Annealed (+A): 650-720°C Normalized (+N): 850-890°C Austenitized: 830-870°C Tempered: 540-680°C

DIN 1.7220 Mechanical Properties

Temperature

≤ 0°C 0 - 30°C 30 - 100°C 100 - 300°C ≥ 300°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

580 MPa

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Elongation, A

7 %

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Reduction of Area

val1 %

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Impact Strength

val1 kJ/m²

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Shear Strength

val1 MPa

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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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Vickers Hardness (HV)

val1

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Grain Size

val1

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672 Cross References

185 Composition
640 Mechanical Properties
85 Physical Properties
36 Heat Treatment
- Metallography
- Machinability

127 Stress-Strain
2 Formability
3 Fatigue
- Fracture
- Creep

3 Joints
- Coatings
52 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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