EN 28Mn6 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: European Union / EN

Data updates

Latest Update: 2024-12

Total number of updates: 7

Update History

2022-06 2020-05 2019-06 2018-10 2018-09 2018-08

This material has 609 properties — only a subset is shown here.

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EN 28Mn6 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.25 – 0.32

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

≤ 0.40

UNIT

CAS NUMBER

7440-47-3

CRITERIA

Cr+Mo+Ni

VALUE

≤ 0.63

UNIT

CAS NUMBER

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-96-5

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7439-98-7

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

EN 10083-1: 1991 / Quenched and tempered steels - Part 1: Technical delivery conditions for special steels (includes amendment A1:1996)

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EN 28Mn6 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 609 properties — only a subset is shown here.

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EN 28Mn6 Heat Treatments

Hardening: 830-870°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 or oil (Other quenching agents such as synthetic quenchants may also be used.);
Tempering: 540-680°C (Time for tempering as a guide: at least 1h.);
End quench test austenitizing: 850 ± 5°C (Time for austenitizing as a guide: 30-35 min.).
Austenitizing (at least 30 min), quenching in water or oil: 840-880°C (the temperatures at the lower end of the range are generally applicable to quenching in water and those at the upper end for quenching in oil), other quenching agents such as synthetic quenchants may also be used; Tempering: 540-680°C (at least 60 min); End quench test: 850 (±5°C); Normalizing: 850-890°C, austenitizing (at least 30 min).

EN 28Mn6 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

540 — 950 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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Grain Size

val1

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218 Cross References

57 Composition
148 Mechanical Properties
3 Physical Properties
11 Heat Treatment
- Metallography
- Machinability

- Stress-Strain
- Formability
10 Fatigue
- Fracture
- Creep

- Joints
- Coatings
6 Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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