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1.4057

X17CrNi16-2
stainless steel; corrosion resistant steel; martensite

Aerospace, Defence, Energy & environmental technology, Medical & pharmaceutical technology, Petrochemicals, Vehicle construction & e-mobility

The material 1.4057 is a martensitic chromium steel with good mechanical properties. Due to its high strength, it is mainly used for heavily stressed machine components.

Composition

C
Si
Mn
P
S
Cr
Ni
min.
0,12
-
-
-
-
15,00
1,50
max.
0,22
1,00
1,50
0,040
0,015
17,00
2,50
C
min.
0,12
max.
0,22
Si
max.
1,00
Mn
max.
1,50
P
max.
0,040
S
max.
0,015
Cr
min.
15,00
max.
17,00
Ni
min.
1,50
max.
2,50

Standards and designations

Material group
Stainless steel
AFNOR
Z15CN16-02
AISI/SAE
431
B.S.
431S29
JIS
SUS431
UNS
S43100

Fields of application

Automotive Industry

Power engineering, onshore & offshore

Turbine construction, power plant construction, transformer construction

Aerospace industry

Mechanical engineering

Food industry

Drive technology

Chemistry, petrochemistry

Attributes

Physical properties at 20° C

Density
7,70 kg/dm³
Specific heat
460 J/kg K
Thermal conductivity
25 W/m K
Electrical resistance
0,70 (ohm) mm²/m
Magnetizability
available

Thermal treatment

Hot forming
800 - 1100 °C
Soft annealing
680 - 800 °C
Hardening (oil, air)
950 - 1050 °C
Tempering
600 - 800 °C

More properties

very good polishability
very good strength
good corrosion resistance
good mechanical properties
good weldability
poor forgeability

Delivery forms

Cut to size/custom made
Icon Zuschnitte
Flat
Icon Flach
Hexagon
Icon Sechskant
Round
Icon Rund
Round tube/bushing
Icon Rundrohr
Sheets/sheet blanks/plates
Icon Bleche
Slit strip
Icon Spaltband
Square
Icon Vierkant
Important note: The information on the properties or usability of materials or products is for information purposes only and does not constitute a contractual obligation. The information merely corresponds to the experience of the manufacturers and HSM®. All information is without guarantee. Misprints, errors and changes reserved.

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