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EN: CuNi2Be
UNS: C17510
Standards: ASTM B441 (rods/bars)
Quick Detail:
C17510 alloy is a precipitation-hardened Beryllium-Nickel Copper Alloy renowned for its exceptional balance of high strength, electrical/thermal conductivity, and corrosion resistance.
Rod size from Dia.1mm - Dia.75mm
Key Characteristics & Advantages:
Corrosion Resistance:excellent in seawater, freshwater, and atmospheric conditions (corrosion depth: 0.01–0.14 mm/year)35. Resists sulfuric acid (<80% concentration) but vulnerable to ammonia/nitric acid36.
Special Characteristics:Non-magnetic, spark-free on impact. Retains properties from cryogenic (−196°C) to elevated temperatures (300°C).
Machinability: 20–40% of free-cutting brass (requires carbide tools with cooling).
Formability/Weldability: Excellent cold/hot workability (e.g., forging, extrusion). Compatible with TIG, laser, electron beam, and brazing techniques
Chemical composition (wt,%):
Be | Co | Ni | Al | Fe | Si | Cu |
0.2-0.6 | <0.3 | 1.4-2.2 | <0.2 | <0.1 | <0.2 | Rem. |
Physical and Mechanical property:
Temper | Tensile Strength | Hardness | Eletric Conductivity | ||
ksi | MPa | HV0.5 | HRB | %, IACS | |
TB00 Solid Solution Treatment |
33-35 | 240-380 | 88 | >50 | >20 |
TD04 Solid Solution Treatment & Cold Process Hardning |
65-80 | 450-550 | 107-148 | 60-80 | |
TF00 Precipitation Heat Treatment |
100-130 | 690-895 | 192-230 | 92-100 | >45 |
TH04 Precipitation Hardening |
110-140 | 760-965 | 200-260 | 95-102 | >48 |
Core Applications:
High precision electronic and electrical:
5G communication connectors, relay contacts, battery probes (high conductivity+arc erosion resistance).
Semiconductor electrode (thermal conductivity optimized heat dissipation efficiency).
High-end equipment manufacturing:
Aerospace structural components (such as engine parts, fatigue and creep resistance).
Automotive sensors/elastic components (such as suspension springs, high yield strength).
Special industrial scenarios:
Submarine cable repeater (highly resistant to seawater corrosion, with a lifespan of 40 years).
Explosion proof tools (non sparking characteristics, safe operation in flammable environments).
Mold and Thermal Management:
Injection mold inserts (with a thermal conductivity 40% higher than steel molds, shortening cooling cycles).
Die cast plunger head (heat-resistant fatigue life extension).