C38000
C38000, Section brass, is a readily extrudable leaded alpha/beta brass with a small aluminium addition, which gives a bright golden colour. The lead gives free cutting properties. C38000 is available as extruded rods and flats which are typically used in builders’ hardware.
Chemical Composition
| Elements |
Min (%) |
Max (%) |
| Cu |
55.00 |
60.00 |
| Pb |
1.50 |
2.50 |
| Fe |
- |
0.35 |
| Al |
- |
0.50 |
| Sn |
- |
0.30 |
| Total Others |
- |
0.50 |
| Zn |
Remainder |
MECHANICAL PROPERTIES ACCORDING TO ASTM B455 (AS PER TEMPER HO2)
| Range (inch) |
From |
To |
UTS Min (ksi) |
UTS Max (ksi) |
PS Min (ksi) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
0.1181 |
2.9527 |
48 |
- |
16 |
15 |
- |
- |
| Hex (A/F) |
0.1181 |
2.7559 |
48 |
- |
16 |
10 |
- |
- |
| Range (mm) |
From |
To |
UTS Min (MPa) |
UTS Max (MPa) |
PS Min (MPa) |
Elongation Min (%) |
Hardness Min |
Hardness Max |
| Round (Dia) |
1.5 |
75 |
330 |
- |
110 |
15 |
- |
- |
| Hex (A/F) |
3 |
70 |
330 |
- |
110 |
15 |
- |
- |
Physical Properties
| PHYSICAL PROPERTIES |
| Density |
0.303 lb/in3 |
| CTE, linear |
14.4 ?in/in-?F |
| Specific Heat Capacity |
0.0908 BTU/lb-?F |
| Thermal Conductivity |
784 BTU-in/hr-ft²-?F |
| Melting Point |
1620 – 1650 ?F |
| Solidus |
1620 ?F |
| Liquidus |
1650?F |
Fabrication Properties
| FABRICATION PROPERTIES |
| Technique |
Suitability |
| Machinability (CuZn39Pb3 = 100 %) |
95.00% |
| Capacity for Being Cold Worked |
Poor |
| Capacity for Being Hot Worked |
Excellent |
