Stainless Steel | Ferritic
1.4512 Sheet
                            Commercial409
                            EN1.4512
                    
                
                Grade 409 / 1.4512 titanium stabilised ferritic stainless steel is often referred to as 'muffler grade stainless steel' since the major bulk usage of this material is for automotive exhaust systems.
Chemical Composition
| EN 10088-2:2005 1.4512 Steel | |
|---|---|
| Chemical Element | % Present | 
| Iron (Fe) | balance | 
| Sulphur (S) | 0.02 max | 
| Phosphorous (P) | 0.04 max | 
| Carbon (C) | 0.3 max | 
| Titanium (Ti) | 0.65 max | 
| Manganese (Mn) | 1 max | 
| Silicon (Si) | 1 max | 
| Chromium (Cr) | 10.5 - 12.5 | 
Supplied Forms
Grade 409 / 1.4512 is a rolled product (sheet, coil and strip) material usually available up to a maximum of 2.5mm thickness. Grade 1.4003 is similar though not a direct equivalent but is available in thicker sheets and plates.
- Sheet
Generic Physical Properties
| Physical Property | Value | 
|---|---|
| Density | 7.6 g/cm³ | 
| Modulus of Elasticity | 208 GPa | 
| Thermal Conductivity | 25.8 W/m.K | 
| Electrical Resistivity | 0.6 x10^-6 Ω .m | 
Mechanical Properties
| EN 10088-2:2005 Sheet - Up to 8mm Thick | |
|---|---|
| Mechanical Property | Value | 
| Proof Stress | 210 Min MPa | 
| Tensile Strength | 380 - 560 MPa | 
| Elongation A50 mm | 25 Min % | 
Weldability
Weldability of grade 409 is good up to about 2.5mm thick.
If welding of thicker material is necessary, then grade 1.4003 should be selected.
