タイトルまたは説明

AZ *1A Magnesium Die-Casting Alloys (MA) Die Casting of magnesium has greatly increased within the past few years, primarily because of the extreme lightness of the finished parts. The table shows relative weights :- Metal Specific Gravity Relative Weight Lb/ Cu Ft. Mg - Alloy 1.8 1.*0 **2 Al - Alloy 2.8 1.*0 **5 Zinc - Alloy 7.1 3.*0 **3 Magnesium possesses other important characteristics besides ultra lightness. It possesses :- (i) A relatively high thermal conductivity. (ii) Has good energy absorption qualities. (iii) Can be machined at higher speeds. (iv) Much economical than other die-casting alloys. (v) Can be used to obtain greater rigidity with no increase in weight over other materials. (vi) Good corrosion resistance in outdoor atmospheres. (vii) Parts of Magnesium can be exposed to outdoor exposures for as long as *0 years. (viii) Magnesium-base Alloys are non-sparking and nonmagnetic. CHEMISTRY Alloying Elements (%) Al: 8.***9.*0 Zn: 0.***1.*0 Impurities Mn: 0.*3 max. Si: 0.*0 max. Cu: 0.*0 max. Ni: 0.*3 max. PHYSICS Tensile Strength (psi) - ****0 Yield Strength (psi) - ****0 Brinel Hardness - *0 Elongation in 2 inch - percent - 3.*0