Aug 22 2012
Topics Covered
Introduction
Chemical Composition
Physical Properties
Mechanical Properties
Other Designations
Fabrication and Heat Treatment
Welding
Machinability
Heat Treatment
Introduction
Bronze alloys are many in number and they include:
-
Phosphor bronze
-
Tin bronze
-
Aluminum bronze
-
Silicon bronze
-
Architectural bronze
-
Manganese bronze
The UNS C92600 alloy is a leaded tin bronze copper casting alloy. The datasheet given below provides an overview of the UNS C92600 alloy.
Chemical Composition
The chemical composition of the UNS C92600 alloy is outlined in the following table.
|
Element |
Content (%) |
|
Copper, Cu |
86.0-88.5 |
|
Tin, Sn |
9.30-10.5 |
|
Zinc, Zn |
1.30-2.50 |
|
Lead, Pb |
0.80-1.20 |
|
Nickel, Ni |
0.75 |
|
Sulfur, S |
0.050 |
|
Phopshorus, P |
0.030 |
|
Antimony, Sb |
0.25 |
|
Iron, Fe |
0.15 |
|
Aluminium, Al |
0.0050 |
|
Silicon, Si |
0.0050 |
Physical Properties
The following table shows the physical properties of the UNS C92600 alloy.
|
Properties |
Metric |
Imperial |
|
Density |
8.70 g/cm³ |
0.314 lb/in³ |
Mechanical Properties
The mechanical properties of the UNS C92600 alloy are displayed in the following table.
|
Properties |
Metric |
Imperial |
|
Hardness, Brinell |
72 |
72 |
|
Hardness, Rockwell F |
78 |
78 |
|
Tensile strength |
304 MPa |
44100 psi |
|
Yield strength (@strain 0.500%) |
140 MPa |
20300 psi |
|
Elongation at break (in 50 mm) |
30.00% |
30.00% |
|
Compressive strength (at permanent set of 0.1%) |
85.0 MPa |
12300 psi |
|
Compressive strength (at permanent set of 10%) |
275 MPa |
39900 psi |
|
Izod impact |
9.00 J |
6.64 ft-lb |
|
Machinability (UNS C36000 (free-cutting brass) = 100) |
40 |
40 |
|
Poisson's ratio |
0.34 |
0.34 |
|
Elastic modulus |
117 GPa |
16969 ksi |
Other Designations
Equivalent materials to the UNS C92600 alloy are ASTM B584 alloys.
Fabrication and Heat Treatment
Welding
Welding process suitable for the UNS C92600 alloy include brazing and soldering. Welding processes not recommended for this alloy include gas shielded arc welding, carbon arc welding, coated metal arc welding and oxyacetylene welding.
Machinability
The machinability rating of the UNS C92600 alloy is 40.
Heat Treatment
The UNS C92600 alloy has a stress relieving temperature of 260°C (500°F). Samples should be held at the stress relieving temperature for 1 hour per 25mm of section thickness.
This alloy does not react to heat treatment.