Brass

Free Machining Brass

C3604
C38500
CuZn39Pb3
CuZn36Pb3
CZ121
CW614N
ASTM B455
ASTM B16

Chemical Composition

Element % Present
Copper (Cu) 57-61
Lead (pb) 2.5-3.5
Iron (Fe) 0.0 - 0.3
Nickel (Ni) 0.0 - 0.3
Tin (Sn) 0.0 - 0.3
Aluminium (Ai) 0.0 - 0.05
Zinc (Zn) Rem

Physical / Mechanical Properties

Melting Point 875°C
Thermal Expansion 20.9 x 10 ̄ 6 /k
Modules of Elasticity 97 GPa
Thermal Conductivity 123 W/m.K
Tensile Strength 360 – 500 MPa
Hardness 90 to 160HB

Applications / Typical Users:

High speed machined components
Architectural extrusions
Components for watches
Locks, Hinges, Screws, Bolts, Nuts, Bushing Pins, Washers, Fasteners
Plumbling fittings
Pneumatic fittings


Naval Brass

JIS H3250 C4641
ASTM B171
ASTM B21
CW719R
CZ112
CuZn38Sn1

Chemical Composition

Element % Present
Copper (Cu) 59 - 62
Lead (pb) 0.0 - 0.2
Iron (Fe) 0.0 - 0.1
Tin (Sn) 0.5 – 1.0
Zinc (Zn) Rem

Physical / Mechanical Properties

Melting Point 888°C
Thermal Expansion 20-300°C / 68-572°F
Modules of Elasticity 117 GPa
Thermal Conductivity 116 W/m.K / 20°C / 68°F
Tensile Strength 379 – 607 MPa
Hardness 90 to 150HB
Hot Working Range 650-815°C

Applications / Typical Users:

Great resistance to seawater, making it ideal for salt and fresh water immersion in either stagnant or moving water.
Uses for decorative fittings, turnbuckles, shafting, and as a universal non-corrosive marine alloy.
Uses for high strength cold headed products
Value stems
Propeller shaft
Ship equipment
Tooling plates
Wear plates
Gears

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