1.4521 Datasheet
X2CrMoTi18-2
stainless steel; corrosion resistant steel; ferrite
Vehicle construction & e-mobility
The material 1.4521 is a ferritic chromium steel with very good resistance to pitting corrosion. It is frequently used for heat exchanger tubes and tubular heating elements due to its low tendency to harden.
Composition
C
Si
Mn
P
S
Cr
Mo
N
Ti
min.
-
-
-
-
-
17,00
1,80
-
[4x(C+N)]+0,15
max.
0,025
1,00
1,00
0,040
0,015
20,00
2,50
0,030
0,80
C
max.
0,025
Si
max.
1,00
Mn
max.
1,00
P
max.
0,040
S
max.
0,015
Cr
min.
17,00
max.
20,00
Mo
min.
1,80
max.
2,50
N
max.
0,030
Ti
min.
[4x(C+N)]+0,15
max.
0,80
Standards and designations
Material group
Stainless steel
AFNOR
Z3CDT18-02
AISI/SAE
444
B.S.
X2CrMoTi18-2
JIS
SUS444
UNS
S44400
Fields of application
Automotive industry
fasteners
Mechanical engineering
plant engineering
Fittings construction
Apparatus and container construction
household appliances
Attributes
Physical properties at 20° C
Density
7.70 kg/dm³
Specific heat
430 J/kg K
Thermal conductivity
23 W/m K
Electrical resistance
0.80 (ohm) mm²/m
Magnetizability
available
Thermal treatment
Hot forming
750 - 1150 °C
Solution annealing
750 - 900 °C
More properties
good corrosion resistance
good chemical resistance
good machinability
good forgeability
medium mechanical properties
low polishability
low solidification after thermal influence
Delivery forms
Angle/profile
Flat
Profile tube
Round
Round tube/bushing
Round tube/bushing
Slit strip
