7075 アルミニウム合金です, 主な合金元素として亜鉛を使用. 強いです, 多くの鋼に匹敵する強度を備えています, 優れた疲労強度と平均的な被削性を備えています。. 他の多くのAl合金よりも耐食性が低い, しかし、より耐食性が大幅に優れています。 2000 合金. Its relatively high cost limits its use to applications where cheaper alloys are not suitable.
7075 aluminum alloy‘s composition roughly includes 5.6–6.1% zinc, 2.1–2.5% magnesium, 1.2–1.6% copper, and less than a half percent of silicon, 鉄, マンガン, チタン, クロム, and other metals. It is produced in many tempers, some of which are 7075-0, 7075-T6, 7075-T651.
Due to their high strength-to-density ratio 7000 series alloys such as 7075 are often used in transport applications, including marine, automotive and aviation.These same properties lead to its use in rock climbing equipment, bicycle components, inlineskating-frames and hang glider airframes are commonly made from 7075 アルミニウム合金. Hobby grade RC models commonly use 7075 そして 6061 for chassis plates.
7075 is used in the manufacturing of M16 rifles for the American military. In particular high quality M16 rifle lower and upper receivers as well as extension tubes are typically made from 7075-T6 alloy. Desert Tactical Arms, SIG Sauer, and French armament company PGM use it for their precision rifles. It is also commonly used in shafts for lacrosse sticks, such as the STX sabre, and camping knife and fork sets. It is a common material used in competition yo-yos as well.
Due to its high strength, 低密度, thermal properties, and its ability to be highly polished, 7075 is widely used in mold tool manufacturing. This alloy has been further refined into other 7000 series alloys for this application, つまり 7050