Stainless Steel 409 - 1.4512
This data sheet applies to hot and cold rolled sheet and strip.
Rail and road vehicles, container construction, warehouse and transportation equipment for the sugar industry, absorbing duct and coal mining.
|Element||% Present (in product form)|
|Chromium (Cr)||10.50 - 12.50|
|Molybdenum (Mo)||6 x (C+N) to 0.65|
Mechanical properties (at room temperature in annealed condition)
|Thickness (mm) Max||8||13.5|
|Yield Strength Rp0.2 N/mm2||Longitudinal||210|
|Tensile Strength||Rm N/mm2||380 - 560|
|Elongation min. in %||A80mm1) <3mm (longitudunal + transverse)||25|
|A2) ≥3mm (longitudinal + transverse)|
2) Values apply for test pieces with a gauge length of 5.65 √So.
Reference data on some physical properties
|Density at 20°C kg/m3||7.7|
|Thermal Conductivity W/m K at||20°C||220|
|Specific Thermal Capacity at 20°C J/kg K||460|
|Electrical Resistivity at 20°C Ω mm2 /m||0.60|
Coefficient of linear thermal expansion 10-6 K-1 between 20°C and
Processing / Welding
Standard welding processes for this steel grade are:
- MAG-Welding Solid Wire
- Arc Welding (E)
Cold forming with a small degree of deformation is easily feasble at tempertaure higher than room temperature. Sharp bending parallel to rolling direction should be avoided. Plates with larger thicknesses and/or higher degrees of deformation should be preheated up to 200 to 400°C. If applicable, hot forming at 700 to 900°C could be necessary. The corrosion resistance is affected by hot forming or annealing colours after welding or scaling. These have to be removed by pickling (pickling solution), grinding or sand blasting. Only iron-free tools are allowed for these workings. Machining does not differ from machining of unallyed carbon steels with comparable respectively corresponding strength.
thyssenkrupp Materials (UK) Ltd
Information given in this data sheet about the condition or usability of materials respectively products are no warranty for their properties, but act as a description. The information, we give on for advice, comply to the experiences of the manufacturer as well as our own. We cannot give warranty for the results of processing and application of the products.