1.4439 (Germany / DIN) Material Properties

Other designations: , , ,
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

Mechanical Properties

Temperature

≤ 0°C
0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Yield Strength, Rp0.2 val1
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MPa view details
Yield Strength, Rp0.2 val1
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Yield Strength, Rp0.2 val1
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Yield Strength, Rp0.2 val1
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Yield Strength, Rp1 val1
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Yield Strength, Rp1 val1
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Yield Strength, Rp1 val1
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Yield Strength, Rp1 val1
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Tensile Strength 490 — 800 MPa view details
Tensile Strength val1
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Tensile Strength val1
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Tensile Strength val1
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Elongation, A 15 % view details
Impact Energy val1
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J view details
Impact Energy val1
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J view details
Brinell Hardness (HB) 130 — 250 view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp0.2 val1
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ksi view details
Yield Strength, Rp1 val1
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ksi view details
Yield Strength, Rp1 val1
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ksi view details
Yield Strength, Rp1 val1
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ksi view details
Yield Strength, Rp1 val1
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ksi view details
Tensile Strength 71.1 — 116 ksi view details
Tensile Strength val1
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ksi view details
Tensile Strength val1
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ksi view details
Tensile Strength val1
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ksi view details
Elongation, A 15 % view details
Impact Energy val1
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ft·lb view details
Impact Energy val1
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ft·lb view details
Brinell Hardness (HB) 130 — 250 view details

Physical Properties

Temperature

0 - 30°C
30 - 100°C
100 - 300°C
≥ 300°C
PROPERTY / VALUE
Modulus of Elasticity 190 — 215 GPa view details
Modulus of Elasticity val1
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GPa view details
Modulus of Elasticity val1
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GPa view details
Modulus of Elasticity val1
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GPa view details
Density val1
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kg/dm³ view details
Poisson Coefficient val1
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Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°C view details
Thermal Conductivity 14 — 17 W/(m∙°C) view details
Heat Capacity val1
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J/(kg∙°C) view details
Electrical Resistivity 0.85 Ω∙mm²/m view details
Electrical Conductivity val1
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S/m view details
Modulus of Elasticity 27.6 E+03 — 31.2 E+03 ksi view details
Modulus of Elasticity val1
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ksi view details
Modulus of Elasticity val1
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ksi view details
Modulus of Elasticity val1
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Density val1
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lb/in³ view details
Poisson Coefficient val1
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Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Coefficient of Thermal Expansion (CTE) val1
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10-6/°F view details
Thermal Conductivity 8.09 — 9.82 BTU/(h∙ft∙°F) view details
Heat Capacity val1
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BTU/(lb∙°F) view details
Electrical Resistivity 511 Ω∙circular·mil/ft view details
Electrical Conductivity val1
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S/in view details

Composition

CRITERIA
VALUE
UNIT
CAS NUMBER
CRITERIA
C
VALUE
≤ 0.030
UNIT
%
CAS NUMBER
7440-44-0
CRITERIA
Cr
VALUE
16.5 – 18.5
UNIT
%
CAS NUMBER
7440-47-3
CRITERIA
Mn
VALUE
≤ 2.00
UNIT
%
CAS NUMBER
7439-96-5
CRITERIA
Mo
VALUE
val1
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UNIT
%
CAS NUMBER
7439-98-7
CRITERIA
N
VALUE
val1
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UNIT
%
CAS NUMBER
7727-37-9; 17778-88-0
CRITERIA
Ni
VALUE
val1
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UNIT
%
CAS NUMBER
7440-02-0
CRITERIA
P
VALUE
val1
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UNIT
%
CAS NUMBER
7723-14-0
CRITERIA
S
VALUE
val1
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UNIT
%
CAS NUMBER
7704-34-9
CRITERIA
Si
VALUE
val1
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UNIT
%
CAS NUMBER
7440-21-3

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

Heat Treatments

  • Solution annealed (+AT): 1100-1140°C (for guidance only), cooling sufficiently rapid in water or air.
  • <b>Quenching</b>: 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.