DIN 1.0721 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: 3

Update History

2018-08 2017-07

This material has 889 properties — only a subset is shown here.

Unlock full material properties, including detailed values across temperatures and conditions.

DIN 1.0721 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.07 – 0.13

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

0.70 – 1.10

UNIT

CAS NUMBER

7439-96-5

CRITERIA

Other

VALUE

Elements such as Te, Bi etc., may only be added by the manufacturer for improving machinability

UNIT

CAS NUMBER

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 10087: 1998 / Free-cutting steels - Technical delivery conditions for semi-finished products, hot-rolled bars and rods

Looking for full material performance data?

DIN 1.0721 Physical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Modulus of Elasticity

190 — 210 GPa

Unlock full details

Density

7.67 — 7.86 kg/dm³

Unlock full details

Poisson Coefficient

0.27 — 0.3

Unlock full details

This material has 889 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

DIN 1.0721 Heat Treatments

Carburizing: 880-980°C. The carburizing temperature will depend on the chemical composition of the steel, the mass of the product, and the carburizing medium. If the steels are direct hardened, in general, a temperature of 950°C is not exceeded. For special procedures, for example under vacuum, higher temperatures (for example 1 020 to 1 050°C) are not unusual;
Core-hardening: 880-920°C. When applying the single quench method, the steel is to be quenched from the carburizing temperature or a lower temperature. The lower hardening temperatures are in each case to be preferred, in particular when there is risk of distortion; Case-hardening: 780-820°C;
Quenching agent: water, oil, emulsion. The kind of quenching agent depends on, for example, the shape of the products, the cooling conditions and the amount of furnace filling;
Tempering: 150-200°C (1 h minimum).
Operation of hardening - 880-920°C;Carburize 880-980°C; Operation of hardening - Heat up 780-820°C; Temper 150-200°C/min. 1 h

DIN 1.0721 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

Unlock full details

Tensile Strength

350 — 780 MPa

Unlock full details

Elongation, A

7 %

Unlock full details

Brinell Hardness (HB)

105 — 159

Unlock full details

Grain Size

val1

Unlock full details

Need complete mechanical properties to make the right choice?

Get complete data on strength, hardness, fatigue, and more.

Optimize material selection for your application - Book a Demo

397 Cross References

26 Composition
97 Mechanical Properties
3 Physical Properties
2 Heat Treatment
- Metallography
- Machinability

36 Stress-Strain
36 Formability
2 Fatigue
- Fracture
- Creep

- Joints
- Coatings
2 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

288 Total Suppliers