6912 FLB

DESCRIPTION

FLB, Section brass, is a readily extrudable leaded alpha/beta brass with a small aluminium addition, which gives a bright golden colour. The lead gives free cutting properties. FLB is available as extruded rods and flats which are typically used in builders’ hardware.

CHEMICAL COMPOSITION

Elements Min (%) Max (%)
Cu 56.50 60.00
Pb 0.60 2.00
Fe - 0.30
Total Others Excl Fe - 0.75
Zn Remainder

MECHANICAL PROPERTIES ACCORDING TO 6912 FLB (AS PER TEMPER HB)

Range (mm) From To UTS Min (MPa) PS Min (MPa) Elongation   Min (%) Hardness Min Hardness Max
Round (Dia) 1.5 75 310 - 25 - -
Hex (A/F) 3 70 310 - 25 - -
Square (A/F) 3 60 310 - 25 - -
Rectangle (Thickness) 3 50 310 - 25 - -
PHYSICAL PROPERTIES
Physical Properties Metric English
Density 8.40 g/cc 0.303 lb/in3
CTE, linear 26.0 ᶙm/m-˚C 14.4 ᶙin/in-˚F
Specific Heat Capacity 0.380 J/g-˚C 0.0908 BTU/lb-˚F
Thermal Conductivity 113 W/m-K 784 BTU-in/hr-ft²-˚F
Melting Point 880-900 ˚C 1620 – 1650 ˚F
Solidus 880 ˚C 1620 ˚F
Liquidus 900 ˚C 1650˚F
FABRICATION PROPERTIES
Forming Suitability
Machinability (CuZn39Pb3 = 100 %) 95.00%
Capacity for Being Cold Worked Poor
Capacity for Being Hot Worked Excellent

TYPICAL USES

  • Architecture
  • Builders Hardware