Nov 13 2012
Topics Covered
IntroductionChemical CompositionPhysical PropertiesMechanical PropertiesThermal PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
Introduction
Brass includes a broad range of copper-zinc alloys having a variety of properties such as ductility, wear-resistance, color, machinability, strength, hardness, antimicrobial, corrosion-resistance, and electrical and thermal conductivity. UNS C35000 medium leaded brass alloys are one of the types of brass, which have 62% free-machining brass coupled with good formability.
The following datasheet will provide more details about UNS C35000 medium leaded brass alloys.
Chemical Composition
The following table shows the chemical composition of UNS C35000 medium leaded brass alloys.
| Element |
Content (%) |
| Cu |
62.5 |
| Pb |
1.1 |
| Zn |
36.4 |
Physical Properties
The physical properties of UNS C35000 medium leaded brass alloys are outlined in the following table.
| Properties |
Metric |
Imperial |
| Density |
8.47 g/cm³ |
0.306 lb/in³ |
Mechanical Properties
The mechanical properties UNS C35000 medium leaded brass alloys are tabulated below.
| Properties |
Metric |
Imperial |
| Tensile strength |
310-655 MPa |
45000-95000 psi |
| Yield strength (depending on temper) |
90.0-483 MPa |
13100-70100 psi |
| Elongation at break (in 25.4 mm) |
66% |
66% |
| Elastic modulus |
117 GPa |
17000 ksi |
| Poisson’s ratio |
0.34 |
0.34 |
| Machinability (UNS C36000 (free-cutting brass) = 100) |
70 |
70 |
| Shear modulus |
39.0 GPa |
5660 ksi |
Thermal Properties
The thermal properties UNS C35000 medium leaded brass alloys are tabulated below.
| Properties |
Metric |
Imperial |
| Thermal conductivity (@20°C/ 68°F ) |
115 W/mK |
798 BTU in/hr.ft².°F |
Other Designations
Equivalent materials to UNS C35000 medium leaded brass alloys are:
- ASTM B121
- ASTM B453
- SAE J461
- SAE J463
Fabrication and Heat Treatment
Machinability
The machinability rate of UNS C35000 medium leaded brass alloys are 70.
Welding
Soldering, brazing, and butt welding are considered as suitable welding processes, whereas processes such as oxyacetylene welding, gas shielded arc welding, coated metal arc welding spot welding, seam welding are not recommended for UNS C35000 alloys.
Forging
UNS C35000 alloys have a hot forgeability rating of 50 with the recommended hot working temperature ranging between 760 and 816°C (1400 and 1500°F).
Hot Working
The hot working capacity of UNS C35000 medium leaded brass alloys is rated as fair.
Cold Working
The cold working capacity of UNS C35000 is rated as fair.
Annealing
The annealing temperature of UNS C35000 medium leaded brass alloys is between 427 and 593°C (800 and 1100°F).
Applications
UNS C35000 medium leaded brass alloys are primarily used for screw machine products that need limited cold formability, knurling, crimping, peening, and thread rolling.
The other uses of UNS C35000 are as follows:
- Watch
- Clock and lock parts
- Hose fittings
- Plumbing valve components
- Bicycle spoke nipples