c69400硅黃銅(復雜黃銅)

product description: silicon red brass

tempers: h04 hard

solids: 3/8" to 2" o.d.

hex: 3/8" to 2" o.d.

standard lengths: 144"

typical uses

industrial: valve stems

similar***equivalent specification

cda astm sae ams federal military other

c69400 b371

b371m

chemical composition

cu％1 pb％ zn％ fe％ si％

chemical composition according to astm b371/b371m-19

1cu value includes ag.

note: cu + sum of named elements, 99.5％ min. single values represent maximums.

80.00- 3.50-

83 0.3 rem. 0.2 4.5

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

physical properties provided by cda

us customary metric

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