Atmospheric corrosion-resistant steel, tseem hu ua weathering steel, yog ib hom qis- alloy steel ua los ntawm kev ntxiv qee cov ntsiab lus ntawm alloying rau cov hlau zoo tib yam, thiab cov ntsiab lus alloy tseem ceeb yog Cu, P, Cr, Ni thiab lwm yam.
