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Casing of ovens requires multiple performances.
High strength interstitial free steels were designed to provide an excellent combination of drawability and mechanical strength based on their specific interstitial free (IF) metallurgy. These steels are hardened by adding manganese, silicon and phosphorous in solid solution to the ferrite. They are particularly suitable for complex parts requiring high mechanical strength. These steels have high strain hardening potential during forming.
The combination of High strength interstitial free steels (like HX220YD+Z) and Easyfilm® provides the best solution in terms of performance and protection. Easyfilm® has a dry appearance. Its essential role is to keep the metallic coating corrosion-free during storage, to withstand fingerprints, facilitate forming and allow direct painting (without pre-treatment).
The use of metallic coated high strength low alloy steels (like HX340LAD+Z) for this application is also an option.