EN 1.4003 (X2CrNi12) Stainless Steel
EN 1.4003 stainless steel is a ferritic stainless steel formulated for primary forming into wrought products. Cited properties are appropriate for the annealed condition. 1.4003 is the EN numeric designation for this material. X2CrNi12 is the EN chemical designation.
It has a fairly low base cost and a fairly low embodied energy among wrought ferritic stainless steels.
The graph bars on the material properties cards below compare EN 1.4003 stainless steel to: wrought ferritic stainless steels (top), all iron alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Data sheet
DIN EN 10088-3
Grade 1.4003
The material 1.4003 / UNS S40977 is a rust-resistant ferritic chromium steel, which has a comparatively high strength within the ferritic steels. The material has medium corrosion resistance and good weldability in the larger dimension ranges. Further properties of the material 1.4003 / UNS S40977 are its resistance to hydrogen sulphide and hydrogen. This ferritic stainless steel is also characterised by its good magnetisability. It is suitable for low temperatures, but can also be used up to 300°. The material 1.4003 / UNS S40977 is often used in the construction industry.
EN material number: 1.4003
EN abbreviation: X2CrNi12
EN standard: 10088-3
UNS: S40977
B.S.:X2CrNi12
AFNOR: X2CrNi12
Microstructure class: ferrite
Magnetizability: present
Density (kg/dm³): 7.7
Thermal conductivity (at up to 20°C): 25
Electronic resistance at room temperature (in Ω mm²/m): 0.60
Possible areas of application
Agricultural technology
Automotive industry
Container construction
Construction industry
Container construction
Sugar industry
and more
Heat treatment and hot forming
Solution annealing 680-740 °C (cooling by air)
Hot forming 1150-800 °C (cooling by air)
The ferritic stainless steel 1.4003 / UNS S40977 has good welding properties in the larger dimensional ranges. It can be used with the common welding methods (with the exception of oxyacetylene welding). If a filler metal is required, 1.4316 or 1.4370 should be selected.
