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Microwave non-visible panels require steels with high mechanical properties and corrosion resistance.
A challenge that HSLA combined with Magnelis® can meet. High Strength Low Alloy steels (HSLA) are characterised by their low content of both carbon and micro-alloying elements. This gives HSLA steels outstanding functional properties, such as weldability and coatability. The hardening achieved by controlled internal purity and fine grain size structure ensures excellent mechanical strength. HSLA combines improved weldability with good formability. The narrow variation margins for their mechanical properties make it easy to shape the steel (presses or automated lines). They also have good fatigue and impact resistance.
HSLA combined with Magnelis® corrosion protection (e.g., HX340LAD+ZM) is the best offer for this application.
Magnelis® is a flat carbon steel product coated on both sides with a zinc-aluminium-magnesium alloy. The coating is composed of approximately 93.5% zinc, 3.5% aluminium, and 3% magnesium, applied through a continuous hot dip galvanising process. Thanks to its unique composition, Magnelis® offers exceptional corrosion resistance, particularly in aggressive environments such as marine, industrial, or soil contact. It also provides excellent edge protection due to its self-healing properties, which form a protective layer even on cut edges.
Magnelis® is highly formable and suitable for deep drawing applications. Its superior corrosion resistance outperforms standard hot dip galvanised and other metallic coatings of equivalent thickness. It is also more environmentally friendly, with reduced zinc runoff and lower environmental impact.
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).
