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172
172 Product Guide
Applications | Specifications | Mechanical and Chemical Data | Tolerances
Overview
Beryllium Copper 172 offers excellent corrosion resistance, good electrical/thermal conductivity, with a strength and hardness comparable to steels. Though harder than most other copper alloys, 172 is also less electrically conductive. Soldering and brazing are rated as good, but oxyacetylene welding is not recommended. Arc welding and spot welding are rated as good, seam welding and butt welding as fair. 172 can also be hot and cold worked. It is typically used for electrical components, fasteners, industrial pumps, bearings, firing pins, and other tools.
Common Trade Names
UNS C17200, CDA 172, C172, CB101, ISO CuBe2, Alloy 25
Other Resources
Weight Calculator | Mill Test Reports
Products
Applications
- Electrical Components
- Fasteners
- Industrial Pumps
- Bearings
- Firing Pins
- Non-Sparking Safety Tools
Specifications
ASTM | AMS |
---|---|
B196 | 4530 |
4532 |
Physical Properties 172 | |||||
| |||||
---|---|---|---|---|---|
Density | 0.298 lb/in3 | ||||
Ultimate Tensile Strength | 84.8-115 ksi | ||||
Yield Tensile Strength | 74.7-105 ksi | ||||
Fatigue Strength | 37 ksi | ||||
Shear Strength | 64 ksi | ||||
Shear Modulus | 6,500 ksi | ||||
Hardness Rockwell | Brinell | B88-102 | 176-253 | ||||
Elongation at Break Percentage | 10-20% | ||||
Modulus of Elasticity | 18,100-18,900 ksi | ||||
Poisson's Ratio | 0.30 | ||||
Machinability Percentage | 20% | ||||
Melting Point | 1,590-1,800 °F | ||||
Specific Heat | 1.0 x 10^-1 BTU/lb-°F | ||||
Thermal Conductivity | 729-902 BTU-in/hr-ft^2-°F | ||||
Electrical Conductivity | 22% IACS |
Chemistry Information
|
|
Element |
Percentage |
Be | 1.9 |
Co | 0.2 |
Cu | 97.9 |