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典型用途

工業(yè)：水閥體
海洋：船用產品
管道：水龍頭、管道配件、水表殼
similar***equivalent specification cda astm sae ams federal military other

c87850	b505 b505m

chemical composition cu％ pb％ sn％ zn％ fe％ p％ ni％1 mn％ sb％ si％

75.00- 78.00	0.02*- 0.09	0.30	rem.	0.10	0.05- 0.20	0.20	0.10	0.10	2.70- 3.40

machinability copper alloy uns no. machinability rating density (lb/in3 at 68 ˚f)

c87850	70	0.3

mechanical properties tensile strength, min yield strength (at 0.5％ extension under load, min) elongation, in 2 in.***50 mm min brinell hardness (500 kg load) remarks ksi mpa ksi mpa ％ minimum bhn

mechanical properties according to astm b505/b505m-18
65	448	25	172	8	103

physical properties us customary metric

physical properties provided by cda
melting point - liquidus	1616 °f	880 °c
melting point - solidus	1571 °f	855 °c
density	0.3 lb/in3 at 68 °f	8.3 gm/cm3 at 20 °c
electrical conductivity	8％ iacs at 68 °f	0.046 megasiemens/cm at 20 °c
thermal conductivity	21.8 btu/sq ft/ft hr/°f at 68 °f	37.8 w/m at 20 °c
coefficient of thermal expansion 68-212	10.3 · 10-6 per °f (68-212 °f)	17.8 · 10-6 per °c (20-100 °c)
coefficient of thermal expansion 68-392	10.3 · 10-6 per °f (68-392 °f)	17.8 · 10-6 per °c (20-200 °c)
coefficient of thermal expansion 68-572	10.4 · 10-6 per °f (68-572 °f)	18 · 10-6 per °c (20-300 °c)
specific heat capacity	0.09 btu/lb/°f at 68 °f	377.1 j/kg at 20 °c
modulus of elasticity in tension	15200 ksi	104801 mpa