C17200 Beryllium Copper: High-Strength Conductive Alloy
ASTM B194/B196 · Updated: 2026-05-25
C17200 beryllium copper (1.8-2.0% Be, 0.2% Co) is a precipitation-hardening alloy that uniquely combines high electrical conductivity (22% IACS) with strength comparable to high-strength steel (1,035 MPa yield after aging). Solution-annealed and cold-worked before aging at 315-350°C for 1-3 hours precipitates beryllium-rich phases that produce the remarkable strength-conductivity combination. Used for non-sparking safety tools (explosive environments), injection mold cores (high thermal conductivity for faster cycle times), electrical switch contacts, and undersea fiber optic repeater housings. Non-magnetic—essential for MRI and electronic test equipment. Note: beryllium dust and fumes are toxic—machining requires proper ventilation and PPE.
Quick Facts
| Category | Copper Alloy |
| Standard | ASTM B194/B196 |
| Density | 8.25 g/cm³ |
| Yield Strength | 1,035 MPa (150 ksi) aged |
| Tensile Strength | 1,310 MPa (190 ksi) aged |
Global Equivalents & Cross-Reference
| Alternative Standard / Grade | Action |
|---|---|
| EN CuBe2 | Compare |
| CW101C | Compare |
| JIS C1720 | Compare |
| QBe2 | Compare |
| ISO CuBe2 | Compare |
Related Materials
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Calculate the weight based on this material's density: 8.25 g/cm³
Frequently Asked Questions
Is beryllium copper safe to machine?
The solid metal is safe to handle. The hazard is from beryllium-containing dust during grinding, sanding, or high-speed machining without coolant, and fumes from welding or melting. With proper engineering controls (coolant, ventilation, HEPA-filtered vacuum) and PPE, C17200 is routinely and safely machined. OSHA PEL for beryllium is 0.2 μg/m³ 8-hour TWA. Always consult the Safety Data Sheet and implement a beryllium exposure control program.