0Cr20Al6RE heating resistance wires

Features:

The core advantage of 0Cr20Al6RE is the significant improvement in oxidation resistance brought by “Reactive Element Effect”(REE). The addition of trace rare earth elements (typically 0.05-0.15%) creates the renowned REE: enhanced oxide scale adhesion and inhibition of harmful impurity diffusion. The result is that at high temperatures of 1200-1300℃, its oxidation resistance life is typically 1.5 to 2 times that of standard 0Cr25Al5, making it particularly suitable for conditions with frequent start-stop cycles (thermal cycling). Standard Fe-Cr-Al alloys tend to experience rapid grain coarsening after long-term high-temperature use, leading to embrittlement and even fracture. Fine oxide particles formed by rare earth elements (such as La₂O₃, CeO₂) are dispersed at grain boundaries, acting as Zener Pinning agents that effectively inhibit grain growth at high temperatures. This allows 0Cr20Al6RE to maintain better toughness and strength after prolonged high-temperature operation, reducing the risk of accidental fracture due to coarse grains. Although the addition of rare earths makes it slightly more expensive than standard 0Cr25Al5 (approx. 10-20% higher), the extension of service life (especially thermal cycling life) often offsets the increased material cost. For critical heating equipment requiring long life and high reliability, the reduction in replacement frequency and maintenance costs results in a lower Total Cost of Ownership (TCO). Compared to expensive nickel-chromium alloys or niobium-containing alloys (0Cr21Al6Nb), it still offers a significant price advantage.

Specifications:

Bright and soft annealed finish: 0.05 - 1.6mm; Acid-pickled or oxidation finish: 1.0 -12.0mm; Rods: 6.0-150.0mm
Flat wire: width from 0.2 - 6.0mm and thickness from 0.08 - 1.0mm; Wide strip: width from 5.0 - 300mm and thickness from 0.05 - 4.0mm