All chrome molybdenum steel sheets are sedated and heat treated in accordance with ASTM A387, which also specifies minimum and maximum levels of the following elements in steel: Chemicals of Carbon, Manganese, Phosphorus, Sulfur, Silicon, Chromium, Molybdenum, Nickel, Vanadium requirements, columbium, boron, nitrogen, aluminum, titanium and circonio. As placas A387 deben someterse a probas de produtos, produtos químicos e de tracción (documentadas no certificado de proba MTC ou material) - debe cumprir requisitos específicos para a resistencia á tracción, a forza de rendemento e a alargación.