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简体中文
Haitian Creole
HSn70-1 brass is a single phase brass of the copper zinc tin ternary system containing trace amounts of arsenic, classified as arsenic added brass in the Chinese national standard (GB5232-85).
??????????? ? ????? ??????
?????? ?????? ???????? ???????? ?? ??? ??? ?? ??????? ??? ? ?????? ???????? ?? ??????? ?? ???? ???. HSn70-1 ????? ??????? ???? ?????
???? ????? ??????? ???? ? ???????? ?? ?? ???????? ????? ????? ??????? ??????? ??????? ?? ???? ????? ?? ?????????? ??? ?????? ????? ???? ????? ????????? ??????? ?????? ?? ??????? ?? ??? ? ???? ?????? ?????? ?????. ?? ?????? ????? ??????? ???? ???? ??? ?? ????? ???? ????? ?????? ????? ???? ? ???? ??????? ?? HSn70-1 ???????? ?????? ????? ?? ??? ?? ???? ???. HSn70-1 tendency towards stress corrosion cracking is a tendency towards cracking, and stress relief relief low temperature annealing is necessary for cold working pipes. HSn70-1 ?? ???? ???? ??? ?? ????? ????? ??? ? ?????? ????? ???? ?? ??? ????? ???.
????? ???????
??? ???
???? (Pb) 0.05?
??? (??) ?.???
????????? (Sb) 0.005?
?????? (P) 0. 01?
?????? (??) ?.002?
Tin (Sn) 0.8-1.3?
?????? (?? ?????) 0. 03- 0. 06?
?? (Cu) 69. 0- 71. 0?
????? ????????? ???? ?.?
HSn70-1 ????? ???? ????? ? ????????? ????? ?? ???? ??? ??? ? ?? ???? ?????? ???? ???? ???? ??? ??????? ??? ? ?????? ?????? ????? ???? ???? ???? ??? ? ??? ???? ? ?????? ??????? ???? ??? ?? ???? ??? ? ???? ?? tendencies ???? ?????? ?? ????? ? ??????. ???? ??? HSn70-1 ?????? ???? ???? ??? ?????? ?? ????? ?? ?????? (??? ???? ???????) ??????? ??????? ?????? ?? ?????? ?? ?? ????, steam ? ??? ? ???????? ??????? ????
?????? ?????? ? ??????? ?.? ???????? ????? ??????? ???? ?????: 899-938 °C. ???? ???: λ=91.3W/(m·°???C). ?????? ???? ????: c=377J/(kg °C). ????? ????? ??: α=19.710-6 °C -1 (20 °C). 000@ 000
????: 8.53g/cm ?. 2.3 ?????? ????????: g=25% IACS. ?????? ????????: p=0.069 μ Ω·m.
3. ?????? ??????? ?.? ???? ????? ??? HSn70-? ?? ??? ?? ??? ?? ???? ???? ?? ???? ????? ???. ?? ??????? ?????? ???? ??? ??? (a+Y) eutectoids ???? ????? ???? ?? ??????? ???????? ?? ?????? ? ???? ??? ???. ???? ?????? ?????? ? ??????? 4.1 ?????? ????? ??? ???? ?????? ??? ???? ???? ? ?? ????? ??? ? ??? ? ??? ????? ???? ??? ???? ????? ??? ? ???? ??? ????? ????. ?????? ??? ???? ?????? ??? 650-750 °C ???. ???? HSn70-1 ?? ?????? ????? ????? ???? ??? ???? ????? ? ????? ? ?????? ????? ??? ???? ???? ???? ??????? ? ???? ??? ????? ???? ???? ???? ???? ???? ???????? ? ???? ???? ???????.
