The chemical composition is given in the table below.
The chemical composition is given as % by weight.
Mechanical properties at room temperature are shown in the table below.
Product type: Cold rolled coil and sheet
Typical (thickness 1 mm)
|Product type: Hot rolled quarto plate|
Typical (thickness 15 mm)
Data according to EN 10095.
|Thermal exp. at 100 °C||Thermal conductivity|
Hot working should be carried out within the temperature ranges given under the headline Characteristic temperatures earlier in this datasheet.
Generally, ferrites are difficult to form in the cold condition. They are formable at room temperature when sheets are no thicker than 3 mm; 1.4713 even 6 mm. Thicker 1.4713 and 1.4724 plates must be preheated and formed within the temperature range 250 - 300°C. 1.4742 and 1.4762 should even be heated up to 800 - 900°C to avoid formation of any brittle phases. Generally, the minimum radius for bending deformation can be taken as “double thickness”. Machining is considered to be less problematic due to their low strain hardening rates.
The same precautions as for carbon steels are normally required. Preheating of the joints to 200-300°C is necessary for plates thicker than 3 mm. Due to grain growth in the heat affected zone, the heat input should be minimised. Gas shielded welding methods such as GTA (TIG), plasma arc and GMA (MIG) are preferred. Pure argon should be used as the shielding gas. Matching filler material has detrimental effect on the ductility why austenitic welding consumables, e.g. 307, 309 or 310 are recommended. If the weld will be exposed to a sulphurous environment, overlay welding with the matching ferritic filler will be necessary.