Description
Brass, an alloy primarily composed of copper and zinc, combines strength with ease of forming, stamping, or drawing, making it a versatile choice for a wide range of uses. Adjusting the zinc content enables the attainment of various properties, including corrosion resistance, ductility, and suitability for machining, providing flexibility in its applications.
Chemical Composition
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 |
– |
– |
| 1.000 |
2.000 |
48 |
24 |
20 |
– |
– |
| 2.000 |
2.952 |
45 |
20 |
25 |
– |
– |
| 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 |
70 |
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 |
| Melting Point – Solidus°F |
1630 |
| Density lb/cu in. at 68°F |
0.304 |
| Specific Gravity |
8.41 |
| Electrical Conductivity % IACS at 68°F |
28 |
| Thermal Conductivity Btu/ sq ft/ ft hr/ °F at 68°F |
71 |
| 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 |
Fair |
| Gas Shielded Arc Welding |
Fair |
| 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 |
60 |
