6912FLB

FLB, categorized as Section brass, presents itself as an easily extrudable alloy featuring a blend of alpha and beta phases, with the infusion of a minor amount of aluminum, resulting in a distinctive bright golden shade. The incorporation of lead grants free cutting characteristics. FLB is provided in the form of extruded rods and flats, commonly employed in the realm of builders’ hardware.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu56.5060.00
Pb0.602.00
Fe0.30
Total Others Excl Fe0.75
ZnRemainder
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

6912 FLB

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