C37100

Brass is fundamentally a copper alloy combined with varying proportions of zinc. This versatile material is characterized by its strength and malleability, making it a popular choice for a wide range of applications. The ability to adjust the zinc content allows for the customization of its properties, such as corrosion resistance, ductility, and suitability for machining, providing a diverse set of options to meet specific needs.

CHEMICAL COMPOSITION
ElementsMin (%)Max (%)
Cu58.0062.00
Pb0.601.20
Fe0.15
Total Others0.40
ZnRemainder
MECHANICAL PROPERTIES ACCORDING TO ASTM B981 (AS PER TEMPER HO2)
Range (Inch) From To UTS Min (Ksi) PS Min (Ksi) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 0.059 0.500 63 28 10
0.500 1.000 55 26 12
2.000 2.000 48 24 20
2.000 2.952 45 20 20
Hex (A/F) 0.118 0.500 63 28 10
0.500 1.000 55 26 12
1.000 2.000 48 24 20
2.000 2.756 45 20 25
Square (A/F) 0.118 0.500 63 28 10
0.500 1.000 55 26 12
1.000 2.000 48 24 20
2.000 2.362 45 20 25
Range (mm) From To UTS Min (MPa) PS Min (MPa) Elongation Min (%) Hardness Min Hardness Max
Round (Dia) 1.5 12 430 190 10
12 25 380 180 12
25 50 330 165 20
50

75

310 135 25
Hex (A/F) 3 12 430 190 10
12 25 380 180 12
25 50 330 165 20
50 60 310 135 25
Square (A/F) 3 12 430 190 10
12 25 380 180 12
25 50 330 165 20
50 60 310 135 25
PHYSICAL PROPERTIES
Melting Point – Liquidus°F 1650
1630 1630
Density lb/cu in. at 68°F 0.304
Specific Gravity 8.41
Electrical Conductivity % IACS at 68°F 27
Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F 69
Coefficient of Thermal Expansion 68-57210⁻⁶ per °F (68 – 572°F) 11.6
Specific Heat Capacity Btu/ lb /°F at 68°F 0.09
Modulus of Elasticity in Tension ksi 15000
Modulus of Rigidity ksi 5600
FABRICATION PROPERTIES 
Technique Suitability
Soldering Excellent
Brazing Good
Oxyacetylene Welding Not Recommended
Gas Shielded Arc Welding Not Recommended
Coated Metal Arc Welding Not Recommended
Spot Weld Not Recommended
Seam Weld Not Recommended
Butt Weld Fair
Capacity for Being Cold Worked Fair
Capacity for Being Hot Formed Excellent
Machinability Rating 70

C37100

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