典型用途

工業：閥桿
similar***equivalent specification cda astm sae ams federal military other

c69400	b371 b371m

chemical composition

cu％1 pb％ zn％ fe％ si％

80.00- 83.00	0.30	rem.	0.20	3.50- 4.50

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

c69400	30	0.296

mechanical properties mechanical properties according to astm b371/b371m-19 c69400 h04 hard size range: up to 1" inclusive tensile strength, min yield strength, at 0.5％ extension under load, min elongation, in 4x diameter***thickness of specimen, min rockwell "b" hardness remarks ksi mpa ksi mpa ％ typical bhn

80	550	40	250	15	95

size range: over 1" to 2" inclusive tensile strength, min yield strength, at 0.5％ extension under load, min elongation, in 4x diameter***thickness of specimen, min rockwell "b" hardness remarks ksi mpa ksi mpa ％ typical bhn

75	515	35	241	15	95

size range: over 2" tensile strength, min yield strength, at 0.5％ extension under load, min elongation, in 4x diameter***thickness of specimen, min rockwell "b" hardness remarks ksi mpa ksi mpa ％ typical bhn

65	450	35	241	15	95

physical properties us customary metric

physical properties provided by cda
melting point - liquidus	1685 °f	918 °c
melting point - solidus	1510 °f	821 °c
density	0.296 lb/in3 at 68 °f	8.19 gm/cm3 at 20 °c
specific gravity	8.19	8.19
electrical conductivity	6.2％ iacs at 68 °f	0.04 megasiemens/cm at 20 °c
thermal conductivity	15 btu/sq ft/ft hr/°f at 68 °f	25.98 w/m at 20 °c
coefficient of thermal expansion 68-572	11.2 · 10-6 per °f (68-572 °f)	19.3 · 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	16000 ksi	110310 mpa