Beryllium Copper UNS C17200 is a high-strength, precipitation-hardenable copper alloy renowned for its exceptional combination of mechanical strength, electrical and thermal conductivity, and excellent corrosion resistance. Manufactured in accordance with standards such as ASTM B196 and ASTM B441, this alloy achieves its superior properties through precise control of beryllium content followed by solution treatment and age hardening. As a result, UNS C17200 offers strength levels comparable to many alloy steels while retaining the inherent conductivity and non-sparking characteristics of copper alloys.
With outstanding fatigue resistance, excellent wear properties, and very good dimensional stability, Beryllium Copper C17200 is ideally suited for demanding industrial and engineering applications. Its good machinability, excellent formability prior to aging, and resistance to galling make it a preferred choice for precision components requiring long service life and reliability. Widely used in aerospace components, oil and gas tools, injection molding inserts, electrical connectors, springs, diaphragms, and non-sparking tools, Beryllium Copper UNS C17200 remains the material of choice for applications demanding high strength, durability, conductivity, and consistent performance under severe operating conditions.
CHEMICAL COMPOSITION OF BERYLLIUM COPPER ROUND BAR
Grade
Be
Co
Al
Si
Cu
C17200
1.80 – 2.00
0.20 – 0.60
0.20 max
0.20 max
Balance
MECHANICAL PROPERTIES OF BERYLLIUM COPPER ROUND BAR
Grade
Tensile Strength (MPa) min
Yield Strength 0.2% Proof (MPa) min
Elongation (% in 50mm) min
Hardness (HRC)
C17200
1050
850
2
35 – 40
💡 Practical Difference in Use
Use Beryllium Copper UNS C17200 Round Bars when: high strength, excellent conductivity, and superior wear and fatigue resistance are required. C17200 is a high-performance beryllium copper alloy designed for applications where both mechanical and electrical performance are critical.
→ Example: precision springs, connectors, aerospace components, and high-performance tooling.
Bright Finished / Machined Beryllium Copper UNS C17200 Round Bars when: very smooth surface finish, tight dimensional control, and precision machining are needed for critical contact, sliding, or conductive parts.
→ Example: electrical contacts, precision springs, wear-resistant bushings, and aerospace fittings.
Applications of Beryllium Copper UNS C17200 Round Bars
Beryllium Copper C17200 round bars are chosen where high strength, fatigue resistance, electrical conductivity, and wear performance are more critical than standard copper alloys.
Electrical & Electronics: Connectors, switches, springs, and high-reliability contact points.
Aerospace & Defense: Precision components, high-strength fasteners, and fatigue-critical parts.
Industrial Tooling: Molds, dies, and components requiring wear resistance and non-sparking properties.
When to Choose Beryllium Copper UNS C17200 Round Bars?
Material selection depends on mechanical strength, conductivity, wear resistance, fatigue requirements, and precision machining needs.
Choose Beryllium Copper UNS C17200 Round Bars when:
High tensile and yield strength are required
Excellent fatigue and wear resistance are needed
Good electrical and thermal conductivity are important
Used in springs, connectors, and high-performance components
Non-sparking or non-magnetic properties are advantageous
Precision load-bearing applications are involved
Bright / Machined Beryllium Copper UNS C17200 Round Bars are preferred when:
Close dimensional tolerances are required
Mirror-like or fine surface finish is essential
Precision CNC or grinding operations are involved
Consistent microstructure and hardness are critical
Used in electrical contacts or aerospace assemblies
High surface integrity for sliding/wear applications
Industries That Use Beryllium Copper UNS C17200 Round Bars
Beryllium Copper C17200 round bars are widely used in industries requiring high strength, excellent conductivity, and fatigue resistance.
Electrical & Electronics
Used in critical conductive and contact components.
Uses
Connectors, springs, switches, precision contacts.
Why Beryllium Copper C17200?
High conductivity, wear resistance, and strength.
Aerospace & Defense
Used in high-reliability, fatigue-critical parts.
Uses
Precision fasteners, springs, high-strength components.
Why Beryllium Copper C17200?
Exceptional fatigue resistance and strength-to-weight ratio.
Industrial Tooling
Used in wear-resistant, non-sparking tooling and components.
