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連鑄

這組合金通常用于管道應(yīng)用。該系列中使用最廣泛的合金是c84400半鉛紅黃銅,以其合理的成本以及良好的機(jī)械加工和鑄造性能而聞名。鉛含量確保壓力密封性。紅黃銅還用于低負(fù)載下的低成本軸承材料。 典型用途

建筑五金：通用五金
工業(yè)：襯套、油管配件、低壓閥、小齒輪、小泵鑄件、管道
管道：聯(lián)軸器、彎頭、管件、塞子、三通、活接頭 similar***equivalent specification cda astm sae ams federal military other

c84200	b505 b505m			ww-p-460

chemical composition cu％1 pb％ sn％ zn％ fe％ p％ ni％1,2 al％ s％ sb％ si％

78.00- 82.00	2.00- 3.00	4.00- 6.00	10.00- 16.00	0.40	1.50	0.80	0.005	0.08	0.25	0.005

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

c84200	80	0.311

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 ％ typical bhn

mechanical properties according to astm b505/b505m-18
32	221	16	110	13	60

physical properties us customary metric

melting point - liquidus	1820 °f	993 °c
melting point - solidus	1540 °f	838 °c
density	0.311 lb/in3 at 68 °f	8.61 gm/cm3 at 20 °c
specific gravity	8.61	8.61
electrical conductivity	16.4％ iacs at 68 °f	0.095 megasiemens/cm at 20 °c
thermal conductivity	41.8 btu/sq ft/ft hr/°f at 68 °f	72.4 w/m at 20 °c
coefficient of thermal expansion	10 · 10-6 per °f (68-392 °f)	17.3 · 10-6 per °c (20-200 °c)
specific heat capacity	0.09 btu/lb/°f at 68 °f	377.1 j/kg at 20 °c
modulus of elasticity in tension	14000 ksi	96500 mpa