Stainless Steel 409 1.4512

This data sheet applies to stainless steel 409 / 1.4512 hot and cold rolled sheet and strip.

Application

Rail and road vehicles, container construction, warehouse and transportation equipment for the sugar industry, absorbing duct and coal mining.

Chemical Compositions*

Element% Present (in product form)
Carbon (C)0.030
Silicon (Si)1.00
Manganese (Mn)1.00
Phosphorous (P)0.040
Sulfur (S)0.015
Chromium (Cr)10.50 - 12.50
Molybdenum (Mo)6 x (C+N) to 0.65
Iron (Fe)Balance

Chemical Compositions*

Element% Present (in product form)
Carbon (C)0.030
Silicon (Si)1.00
Manganese (Mn)1.00
Phosphorous (P)0.040
Sulfur (S)0.015
Chromium (Cr)10.50 - 12.50
Molybdenum (Mo)6 x (C+N) to 0.65
Iron (Fe)Balance

Mechanical properties (at room temperature in annealed condition)

Product Form
CH
Thickness (mm) Max813.5
Yield Strength Rp0.2 N/mm2Longitudinal210
Transverse220
Tensile StrengthRm N/mm2380 - 560
Elongation min. in %A80mm1) <3mm (longitudunal + transverse)25
A2) ≥3mm (longitudinal + transverse)

Mechanical properties (at room temperature in annealed condition)

Reference data on some physical properties

Density at 20°C kg/m37.7
Thermal Conductivity W/m K at20°C220
200°C210
400°C195
Specific Thermal Capacity at 20°C J/kg K460
Electrical Resistivity at 20°C Ω mm2 /m0.60

Reference data on some physical properties

Density at 20°C kg/m37.7
Thermal Conductivity W/m K at20°C220
200°C210
400°C195
Specific Thermal Capacity at 20°C J/kg K460
Electrical Resistivity at 20°C Ω mm2 /m0.60

Coefficient of linear thermal expansion 10-6 K-1 between 20°C and

100°C10.5
200°C11.0
300°C11.5
400°C12.0
500°C12.0

Coefficient of linear thermal expansion 10-6 K-1 between 20°C and

100°C10.5
200°C11.0
300°C11.5
400°C12.0
500°C12.0

Processing / Welding

Standard welding processes for this steel grade are:

  • TIG-Welding
  • MAG-Welding Solid Wire
  • Arc Welding (E)

Processing

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.

Editor

thyssenkrupp Materials (UK) Ltd
Cox’s Lane
Cradley Heath
West Midlands
B64 5QU

Important Note

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.