DIN 1.4439 Stainless steels

Material group: Ferrous Alloys / Stainless steels, Ferrous Alloys / Cast steels

Country/Standard: Germany / DIN

Data updates

Latest Update: 2025-11

Total number of updates: 19

Update History

2025-10 2024-09 2023-12 2022-04 2021-07 2019-11 2019-09 2019-06 2019-04 2018-08 2017-06 2016-08 2016-05 2016-02 2015-05 2015-04 2015-03 2014-04

This material has 1528 properties — only a subset is shown here.

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

DIN 1.4439 Chemical Composition

CRITERIA

VALUE

UNIT

CAS NUMBER

CRITERIA

VALUE

≤ 0.030

UNIT

CAS NUMBER

7440-44-0

CRITERIA

VALUE

16.5 – 18.5

UNIT

CAS NUMBER

7440-47-3

CRITERIA

VALUE

≤ 2.00

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

Looking for full material performance data?

DIN 1.4439 Physical Properties

Temperature

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

PROPERTY / VALUE

Modulus of Elasticity

190 — 215 GPa

Unlock full details

Density

val1 kg/dm³

Unlock full details

Poisson Coefficient

val1

Unlock full details

Thermal Conductivity

14 — 17 W/(m∙°C)

Unlock full details

Heat Capacity

val1 J/(kg∙°C)

Unlock full details

Electrical Resistivity

0.85 Ω∙mm²/m

Unlock full details

Electrical Conductivity

val1 S/m

Unlock full details

This material has 1528 properties — only a subset is shown here.

Unlock detailed physical values across temperatures and conditions.

DIN 1.4439 Heat Treatments

Solution annealed (+AT): 1100-1140°C (for guidance only), cooling sufficiently rapid in water or air.
Quenching: Heated at 1080-1130°C, water quenched or air cooled. Structure after heat treatment is austenite. It is possible to contain some amount of ferrite.

DIN 1.4439 Mechanical Properties

Temperature

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

PROPERTY / VALUE

Yield Strength, Rp0.2

val1 MPa

Unlock full details

Yield Strength, Rp1

val1 MPa

Unlock full details

Tensile Strength

490 — 800 MPa

Unlock full details

Elongation, A

15 %

Unlock full details

Impact Energy

val1 J

Unlock full details

Brinell Hardness (HB)

130 — 250

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

209 Cross References

216 Composition
581 Mechanical Properties
59 Physical Properties
20 Heat Treatment
- Metallography
- Machinability

37 Stress-Strain
- Formability
5 Fatigue
- Fracture
- Creep

35 Joints
- Coatings
194 Dimensions
- Tribology

1 Corrosion
- Ageing
- Weatherability
- Irradiation

171 Total Suppliers