KEPAI NEW MATERIAL
Established in May 2017, Sichuan Kepai New Materials Co., Ltd. is a high-tech private company specializing in R&D, production and sales of high conductivity and high strength free cutting tellurium copper and other special copper alloys.
| Material Category | Conductivity (%IACS) | Tensile Strength (MPa) | Hardness (HB) | Primary Forming Methods | Key Industry Application |
|---|---|---|---|---|---|
| Pure Copper (C11000) | ≥100 | 200 - 250 | 40 - 60 | Cold Drawing, Rolling | Power Transmission, Electrical Busbars |
| Tin Bronze (C51900) | 13 - 15 | 450 - 600 | 110 - 180 | Casting, Stamping | Springs, Wear-resistant Parts |
| Tellurium Copper (C14500) | 93 - 98 | 250 - 350 | 65 - 90 | High-speed CNC Machining | EV Connectors, Plasma Nozzles |
| Beryllium Copper (C17200) | 20 - 25 | 1100 - 1380 | 350 - 450 | Heat Treatment, Forging | Aerospace Sensors, Oil & Gas Tools |
| CrZrCu (C18150) | 75 - 85 | 480 - 550 | 130 - 160 | Forging, Extrusion | Resistance Welding, High-Voltage EV |
Precipitation Phase Distribution
The ultimate limit of conductivity in copper alloys is governed by the fractional distribution of precipitation phases in the matrix. Current research focuses on minimizing electron scattering by refining precipitate size to the sub-10nm scale, ensuring high strength without compromising the mean free path of electrons.
AI-Driven Alloy Design (2026)
By 2026, ML models (GANs and Bayesian Optimization) will replace "trial-and-error" metallurgy. These algorithms analyze multi-dimensional datasets to predict the optimal elemental recipe that balances extreme thermal stability with electrical efficiency, accelerating the discovery of "Super-Copper."
Purity & Mass Production
Final product variance is increasingly sensitive to raw material purity. Our analysis shows that a 0.01% fluctuation in oxygen or lead content can lead to a 5% drop in IACS in high-performance alloys. Kepai's vacuum melting technology mitigates these "purity-drift" effects.
The high-voltage connector market for New Energy Vehicles (NEVs) has long been dominated by imported materials. However, recent latest certifications of domestic C18150 alloys show that Chinese manufacturers have achieved 99% parity with Japanese and German benchmarks in terms of stress relaxation resistance and high-temperature softening temperature (up to 500°C).
CITIC Securities and other leading consultancies predict a systemic elastic volume release in the high-strength, high-conductivity copper alloy industry as localized supply chains mature by 2026.
Aerospace Frontier: NASA GRCop-42
The pinnacle of copper technology is currently represented by GRCop-42, a copper-chromium-niobium alloy designed for Solid Rocket Engine Thrust Chamber Liners. This material offers:
- ✔ Excellent Creep Resistance at extreme temperatures.
- ✔ High thermal conductivity for regenerative cooling.
- ✔ Compatibility with Additive Manufacturing (3D Printing).
Future Propulsion Systems rely on Advanced Copper Logic
C17200 Beryllium Copper
Highest strength of all copper-beryllium alloys. UTS exceeding 1380 MPa.
Learn More →
C18150 Chromium Zirconium
Ideal for resistance welding and high-temperature electrical applications.
Learn More →
C14500 Tellurium Copper
High conductivity (93% IACS) with superior free-cutting properties for CNC.
Learn More →
Ready to Optimize Your Material Logic?
Consult with our engineers for high-strength, high-conductivity solutions tailored to your industry.
SEND INQUIRY NOW