C17500/C17510 offers a combination of high electrical and thermal conductivity with good strength compared to most copper based alloys. C17500 alloy is the mirror image of alloy C17510 in terms of its properties and characteristics.
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C17500 Beryllium Copper isn’t just another alloy – it’s the gold standard where failure isn’t an option. When your springs must snap back a million times, your connectors can’t arc under 30.000 volts, and your tools need to survive molten metal splashes, this 2% beryllium marvel delivers. Trusted in F-35 fighter jets and Mars rovers because physics doesn’t negotiate.
TECH SPECS THAT DEFY LIMITS (UNS C17500 / DIN 2.1247)
| Property | C17500 (Age-Hardened) | Stainless Steel 17-4PH | Aluminum 7075 |
|---|---|---|---|
| Tensile Strength | 1.150–1.450 MPa | 1.100 MPa | 570 MPa |
| Conductivity (IACS) | 22–28% | 3% | 30% |
| Fatigue Endurance | 10⁸ cycles @ 500 MPa | 10⁸ cycles @ 400 MPa | 10⁸ cycles @ 200 MPa |
| Thermal Limit | 425°C | 300°C | 175°C |
| Machinability | 70% (Free-cutting brass = 100%) | 45% | 80% |
| Corrosion Resistance | Excellent (ASTM B858) | Good | Poor |
5 REASONS C17500 DOMINATES CRITICAL APPLICATIONS
Strength × Conductivity Unlocked
“Delivers spring force like tool steel while carrying 5X more current than stainless. Perfect for missile guidance springs conducting 100A.”
Sparks Fly? Not Here
“Non-sparking even in hydrogen-rich environments. Essential for oil rig tools where a single spark costs $1B.”
Fatigue? What Fatigue?
“Survives 500M compression cycles in fuel injector valves. Outlasts the vehicle by decades.”
Machinists Love It
“Cuts like butter pre-hardening, then transforms into titanium-grade strength after aging. No warping, no tool chatter.”
Corrosion Warrior
“Laughs off salt spray, acids, and sweat. Passes 1.000-hour salt fog tests (ASTM B117) without pitting.”
HOW WE ENGINEER PERFECTION
1 Vacuum Induction Melting
“Beryllium vapor locked in zero-oxygen chambers (<10 ppm impurities). Safer than traditional powder metallurgy.”
2 Hot Rolling Precision
“Forged at 790°C into strips with ±0.01mm thickness control – crucial for EMI shielding foils.”
3 Solution Annealing
“Quenched at 790°C to trap beryllium in solution – creating a ‘ticking strength bomb’.”
4 Age Hardening Alchemy
“Heated to 320°C for 3 hours: beryllium atoms precipitate into nano-armor, boosting strength 300%.”
WHERE IT POWERS THE EXTREME
| Industry | Critical Applications | Why C17500 Wins |
|---|---|---|
| Aerospace | Landing gear bearings, radar waveguides | Handles -55°C to 260°C swings without losing spring force |
| Defense | Trigger mechanisms, torpedo safeties | Non-magnetic & EMP-proof |
| Oil & Gas | Downhole tool springs, blowout preventers | Non-sparking in methane-rich environments |
| Medical | Surgical laser components, MRI contacts | Biocompatible (ISO 13485 certified) |
| Robotics | Cobot torque sensors, wafer handling arms | Zero hysteresis after 10M cycles |
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