TAILIEUCHUNG - Machinery's Handbook 27th Episode 1 Part 8

Tham khảo tài liệu 'machinery's handbook 27th episode 1 part 8', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | Machinery s Handbook 27th Edition COPPER ALLOYS 555 Copper and Copper Alloys Pure copper is a reddish highly malleable metal and was one of the first to be found and utilized. Copper and its alloys are widely used because of their excellent electrical and thermal conductivities outstanding resistance to corrosion ease of fabrication and broad ranges of obtainable strengths and special properties. Almost 400 commercial copper and copper-alloy compositions are available from mills as wrought products rod plate sheet strip tube pipe extrusions foil forgings and wire and from foundries as castings. Copper alloys are grouped into several general categories according to composition coppers and high-copper alloys brasses bronzes copper nickels copper-nickel-zinc alloys nickel silvers leaded coppers special alloys The designation system originally developed by the . copper and brass industry for identifying copper alloys used a three-digit number preceded by the letters CA. These designations have now been made part of the Unified Numbering System UNS simply by expanding the numbers to five digits preceded by the letter C. Because the old numbers are embedded in the new UNS numbers no confusion results. UNS C10000 to C79999 are assigned to wrought compositions and UNS C80000 to C99999 are assigned to castings. The designation system is not a specification but a method for identifying the composition of mill and foundry products. The precise technical and quality assurance requirements to be satisfied are defined in relevant standard specifications issued by the federal government the military and the ASTM. Classification of Copper and Copper Alloys Family Principal Alloying Element UNS Numbersa Coppers high-copper alloys Clxxxx Brasses Zn C2xxxx C3xxxx C4xxxx C66400 to C69800 Phosphor bronzes Sn C5xxxx Aluminum bronzes Al C60600 to C64200 Silicon bronzes Si C64700to C66100 Copper nickels nickel silvers Ni C7xxxx a Wrought alloys. Cast Copper Alloys. Generally casting .

TÀI LIỆU LIÊN QUAN
69    272    11
TỪ KHÓA LIÊN QUAN
Đã phát hiện trình chặn quảng cáo AdBlock
Trang web này phụ thuộc vào doanh thu từ số lần hiển thị quảng cáo để tồn tại. Vui lòng tắt trình chặn quảng cáo của bạn hoặc tạm dừng tính năng chặn quảng cáo cho trang web này.