EN 8CrMo16-5 Structural and constructional steels

Material group: Ferrous Alloys / Structural and constructional steels

Country/Standard: European Union / EN

Data updates

Latest Update: 2021-10

Total number of updates: 1

Update History

This material has 51 properties — only a subset is shown here.

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EN 8CrMo16-5 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

0.04 – 0.12

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

3.70 – 4.30

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

≤ 0.2500

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

7723-14-0

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7704-34-9

CRITERIA

VALUE

val1

UNIT

CAS NUMBER

7440-21-3

EN ISO 683-5: 2017 / Heat treatable steels, alloy steels and free-cutting steels - Part 5: Nitriding steels

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EN 8CrMo16-5 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 51 properties — only a subset is shown here.

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EN 8CrMo16-5 Heat Treatments

The base composition and the heat treatment (quenching and tempering) prior to nitriding both have an influence on the results of nitriding treatment. The tempering temperature should not be less than 50°C higher than the nitriding temperature. A difference of less than 50°C should be the subject of a special agreement.
Soft annealing at 640-660°C;
Hardening at 940-960°C (time for austenitizing as a guide: 0.5h minimum) and quenching in water;
Tempering at 620-660°C (time for tempering as a guide: 1h minimum; With very large sizes, the tempering temperature may be agreed at the time of enquiry and order).

EN 8CrMo16-5 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

800 — 1000 MPa

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Elongation, A

14 %

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Impact Energy

val1 J

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Brinell Hardness (HB)

≤ 220

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Vickers Hardness (HV)

val1

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Grain Size

val1

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22 Cross References

8 Composition
17 Mechanical Properties
3 Physical Properties
1 Heat Treatment
- Metallography
- Machinability

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

- Joints
- Coatings
- Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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