EN 1.4578 Stainless steels

Material group: Ferrous Alloys / Stainless steels

Country/Standard: European Union / EN

Data updates

Latest Update: 2020-03

Total number of updates: 5

Update History

2019-09 2018-01 2015-02 2015-01

This material has 328 properties — only a subset is shown here.

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EN 1.4578 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≤ 0.04

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

16.5 – 17.5

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

3.0 – 3.5

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

7440-02-0

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 10088-1: 2023 / Stainless steels - Part 1: List of stainless steels

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EN 1.4578 Physical Properties

Temperature

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

PROPERTY / VALUE

Modulus of Elasticity

190 — 215 GPa

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Density

7.61 — 8.1 kg/dm³

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Poisson Coefficient

0.27 — 0.3

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This material has 328 properties — only a subset is shown here.

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EN 1.4578 Heat Treatments

Hot forming: 1150-900°C, air cooling; Solution annealing (+AT): 1000-1100°C, water or air cooling. If heat treatment is carried out in a continuous furnace, the upper part of the range specified should usually be preferred, or even exceeded. The lower end of the range specified for solution annealing should be aimed at the heat treatment as part of further processing, because otherwise the mechanical properties might be affected. If the temperature of hot forming does not drop below the lower temperature for solution annealing, a temperature of 1000°C for steels with Mo contents up to 3 %.
Hot working (air cooling): 1150-900°C; +AT - Solution annealing (air or water cooling): 1000-1100°C.

Hot formed conditions:
1U - Hot formed, not heat treated, not descaled.
1C - Hot formed, heat treated, not descaled.
1E - Hot formed, heat treated, mechanically descaled.
1D - Hot formed, heat treated, pickled, coated (optional).
1X - Hot formed, heat treated, rough machined.
1G - Hot formed, heat treated, descaled, rough machined or shaved in the case of rod.
Cold processed conditions:
2H - Finishes 1E, 1D or 1X, cold processed, coated (optional).
2D - Finish 2H, heat treated, pickled and skin- passed (optional), coated (optional).
2B - Finishes 1E, 1D or 1X, cold processed, mechanically smoothed.
2G - Finishes 2H, 2D or 2B, centreless ground, mechanically smoothed (optional).
P - Finishes 2H, 2D, 2B or 2G, specular polishing.

EN 1.4578 Mechanical Properties

Temperature

0 - 30°C

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

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Tensile Strength

450 — 850 MPa

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Elongation, A

20 %

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Reduction of Area

val1 %

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Brinell Hardness (HB)

≤ 215

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126 Cross References

40 Composition
47 Mechanical Properties
10 Physical Properties
2 Heat Treatment
- Metallography
- Machinability

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

- Joints
- Coatings
- Dimensions
- Tribology

- Corrosion
- Ageing
- Weatherability
- Irradiation

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