Topics CoveredIntroductionChemical CompositionPhysical PropertiesMechanical PropertiesOther DesignationsFabrication and Heat Treatment Machinability Welding Forging Hot Working Cold Working AnnealingApplications
UNS C17000 beryllium copper alloys are ductile, heat treatable and can be mill hardened. These alloys are used in applications, which require high strength and good conductivity. The following section will discuss in detail about UNS C17000 beryllium copper alloys.
The following table shows the chemical composition of UNS C17000 copper.
The physical properties of UNS C17000 copper are given in the following table.
The mechanical properties of UNS C17000 copper are tabulated below.
|Tensile strength, ultimate
||483 - 810 MPa
||70100 - 117000 psi|
|Tensile strength, yield (depending on temper)
||221 - 1172 MPa
||32100 - 170000 psi|
|Elongation at break (in 76.2 mm)
|Modulus of elasticity
|Machinability (UNS C36000 (free-cutting brass) = 100%)
Other designations that are equivalent to UNS C17000 copper include:
- ASTM B194
- ASTM B196
- ASTM B570
- SAE J461
- SAE J463
Fabrication and Heat Treatment
The machinability rating of C17000 copper alloys is 20%.
Welding methods such as soldering, brazing, gas shielded arc welding, coated metal arc welding, spot welding, seam welding and butt welding are preferred for C17000 copper alloys. Oxyacetylene welding is not recommended for this type of alloys.
C17000 copper alloys are forged at temperature ranging from 649 to 816°C (1200 to 1500°F).
C17000 copper alloys have good hot working property.
C17000 copper alloys have excellent cold working property.
C17000 copper alloys are annealed at temperature ranging from 774 to 802°C (1425 to 1475°F).
The following are the major applications of the UNS C17000 copper:
- Electrical/electronic connectors
- Current-carrying springs
- Precision screw machined parts
- Welding electrodes
- Plastic molds
- Corrosion resistant components