DIN 1.8872 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2022-08

Total number of updates: 6

Update History

2021-06 2018-12 2017-09 2017-06 2016-03

This material has 782 properties — only a subset is shown here.

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DIN 1.8872 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≥ 0.020

UNIT

CAS NUMBER

7429-90-5

CRITERIA

VALUE

≤ 0.18

UNIT

CAS NUMBER

7440-44-0

CRITERIA

CEV

VALUE

≤ 0.51

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-50-8

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7727-37-9; 17778-88-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-03-1

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

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-32-6

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-62-2

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-67-7

EN 10222-4: 2017 / Steel forgings for pressure purposes - Part 4: Weldable fine grain steels with high proof strength

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DIN 1.8872 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

val1

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Service Temperature

-50 °C

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This material has 782 properties — only a subset is shown here.

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DIN 1.8872 Heat Treatments

Quenched and tempered: 860-940°C, cooled in oil, polymer or water. Tempered at 600-700°C.
Quenching and tempering:
Hardening at 860-940°C, after the temperature has been reached, quench the entire cross-section in water or oil, or cool in air.
Tempering at 560-700°C, holding time at least 30 min, cool down in still air.

Normal annealing 880-960°C, after reaching the temperature, cool the entire cross-section in still air.

Three stage heat treatment:
Hardening at 860-940°C / water
750-780°C / water
Tempering at 600-630°C.

Heat treatment after welding:
Stress relief annealing at 530-580°C. Cooling down in still air or in the oven. The duration required for the specified annealing temperatures includes this warming up and keeping within the temperature range and depends on the thickness of the components. When measuring for the annealing temperature on the component surface, depending on the thickness, the following guide values are recommended:
≤ 15 mm at least 15 min
> 15 mm to ≤ 30 mm at least 30 min
> 30 mm to ≤ 350 mm at least 60 min
> 350 mm approx. 120 min.
The maximum holding time for the usual stress relief annealing is 150 minutes. With a holding time > 90 min or with multiple anneals, the lower limit of the temperature range should be aimed for.

DIN 1.8872 Mechanical Properties

Temperature

≤ 0°C 0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

380 MPa

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Tensile Strength

500 — 730 MPa

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Elongation, A

17 %

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Impact Energy

val1 J

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304 Cross References

62 Composition
67 Mechanical Properties
4 Physical Properties
2 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
1 Formability
- Fatigue
- Fracture
- Creep

3 Joints
- Coatings
136 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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