1.4513 is a 1% molybdenum-alloyed ferritic stainless steel with medium chromium content. It is suitable for use in many corrosive environments, like for instance in the cold end of automotive exhaust systems. Because of its titanium alloying, 1.4513 can be welded in all dimensions without becoming susceptible to intergranular corrosion.
Automotive exhaust systems & mufflers
Decorative trim in automotive applications
Product forms, available sizes and finishes
|Black hot band|
Cold rolled coil
2B, 2BB, 2C, 2D, 2E, 2G, 2J, 2R
Cold rolled sheet
2B, 2BB, 2D, 2E, 2G, 2J, 2R
Hot rolled coil, pickled
1C, 1D, 1G, 1U
Chemical Composition (% by mass)
Product type: Cold rolled coil and sheet
Typical (thickness 1 mm)
Product type: Hot rolled coil and sheet
Typical (thickness 4 mm)
|Density||Modulus of elasticity||Thermal exp. at 100 °C||Thermal conductivity|
1.4513 has good corrosion resistance in solutions of many halogen-free organic and inorganic compounds over a wide temperature and concentration range. It can withstand many sufficiently diluted organic and mineral acids depending on the temperature and concentration of the solution. 1.4513 may suffer from uniform corrosion in strong organic and mineral acids, as well as in hot concentrated alkaline solutions.
In aqueous solutions containing halogenides, e.g. chlorides or bromides, pitting and crevice corrosion may occur depending on the halogenide concentration, temperature, pH-value, concentration of oxidizing compounds, or crevice geometry, if applicable. The presence of corrosion-inhibiting or accelerating compounds like e.g. transition metal ions or organic compounds may influence the corrosion behavior of 1.4513. Due to its ferritic crystal structure, 1.4513 is not prone to chloride-induced stress corrosion cracking.
1.4513 can be used for indoor and outdoor applications in rural areas and urban environments where chloride contamination is low. The best material performance is usually reached with the help of adequate design, correct post-weld treatment, and regular cleaning during use (if applicable).
Due to its titanium and niobium content, the risk of senzitisation to intergranular corrosion is strongly reduced when compared to non-stabilized ferritic grades. 1.4513 can be used in the temperature range in which chromium carbides would precipitate in non-stabilized ferritic grades. Its maximum service temperature in dry air is 850 °C. The presence of other corrosive compounds in the hot environment, like water or sulfur compounds may reduce the maximum service temperature significantly.
|Pitting corrosion resistance||Crevice corrosion resistance|