C69710

C69710 brass is a type of brass alloy specifically developed for the initial shaping and forming of wrought products. Typically, it is supplied in the H04 temper, denoting full hardening. This brass alloy is characterized by a moderately low melting point and relatively high tensile strength compared to other wrought brass alloys.

CHEMICAL COMPOSITION
Elements Min (%) Max (%)
Cu 75.0 80.0
Pb 0.50 1.50
Fe 0.20
Mn 0.40
Si 2.50 3.50
As 0.03 0.06
Total Others 0.50
Zn Remainder
(1) Cu + Sum of Named Elements 99.5% min. (2) Cu value includes Ag.
MECHANICAL PROPERTIES ACCORDING TO ASTM B371 (AS PER TEMPER HO2)
Range (Inch) From To UTS Min (ksi) PS Min (ksi) Elongation Min (%) Hardness Min Hardness Max
Round (Dia)0.0591.000653220
1.0002.953552825
Hex (A/F)0.1181.000653220
1.0002.755552825
Square (A/F)0.1181.000653220
1.0002.362552825
Range (mm) From To UTS Min (MPa) PS Min (MPa) Elongation Min (%) Hardness Min Hardness Max
Round (Dia)1.52545022020
257538019525
Hex (A/F)32545022020
257038019525
Square (A/F)32545022020
256038019525
PHYSICAL PROPERTIES
Melting Point – Liquidus°F1706
Density lb/cu in. at 68°F0.3
Specific Gravity8.3
Electrical Conductivity % IACS at 68°F8
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F23
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F)10.7
Modulus of Elasticity in Tension ksi16000
FABRICATION PROPERTIES
TechniqueSuitability
Capacity for Being Hot FormedExcellent
Machinability Rating70

C69710

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