1.4521 (X2CrMoTi18-2) Ferritic Chrome Steel – High Corrosion Resistance & Low Work Hardening

The material 1.4521 is a ferritic chrome steel with very good resistance against pitting corrosion. Due to its low tendency to work hardening, it is often used for heat exchanger tubes and tubular heating elements.

Properties

General

Property	Temperature	Value
Density	23.0 °C	7.7 g/cm³

Mechanical

Property	Temperature	Value	Comment
Elastic modulus	23.0 °C	220 GPa
Elongation A5	23.0 °C	20 %	min.
Hardness, Brinell	23.0 °C	200 [-]	max.
Tensile strength	23.0 °C	450 - 650 MPa
Yield strength Rp0.2	23.0 °C	320 MPa	min.

Thermal

Property	Temperature	Value
Specific heat capacity	23.0 °C	430 J/(kg·K)
Thermal conductivity	23.0 °C	23 W/(m·K)

Electrical

Property	Temperature	Value
Electrical resistivity	23.0 °C	8E-7 Ω·m

Magnetic

Property	Value
Magnetic properties	Magnetisation is possible

Chemical properties

Property	Value	Comment
Carbon	0.025 %	max.
Chromium	17 - 20 %
Manganese	1 %	max.
Molybdenum	1.8 - 2.5 %
Nitrogen	0.03 %	max.
Phosphorus	0.04 %	max.
Silicon	1 %	max.
Sulfur	0.015 %	max.
Titanium	0.8 %	max., (min: 4x(C+N)+0.15)

Technological properties

Property
Application areas	Automotive Industry, Fasteners, Mechanical Engineering, Plant construction, Armature construction, Apparatus and tank construction, Home appliances
Corrosion properties	Very good resistance against pitting corrosion
General machinability	Good
Polishing ability	Bad
Solution annealing	750-900°C
Welding	TIG welding: suitable, MAG Solid wire: suitable, Arc welding: suitable, UP welding: limited, Laser beam welding: suitable, Gas fusion welding: not suitable. A heat inpute should be as low as possible.
Workability	Hot forming: 750-1150°C

Aluminum Alloy 5657 H28 – Non-Heat Treatable, Superior Surface Finish & Corrosion Resistance 1.4529 (X1NiCrMoCuN25-20-7): Premium Austenitic Steel for Corrosion Resistance

Metal