High-temperature alloy

  • 06-Dec-2010 04:27 EST


Federal-Mogul develops advanced high-temperature alloy (HTA) materials that help to ensure reliable long-term exhaust sealing, even on demanding powertrain applications with fluctuating high temperatures and dynamic mechanical loads. The HTA technology—already proven in the heavy-duty diesel sector, says the company—is now applicable to light-duty diesel and gasoline engines as automakers' strategies to reduce emissions pushes exhaust temperatures beyond 1000°C (1832°F). Even at higher temperatures, the microhardness, creep resistance, and dynamic sealing of the HTA materials offer an alternative to the industry standard "301 full hard" stainless steel, which loses mechanical strength beyond 427°C (801°F) and can crack or otherwise experience a loss of sealing ability. HTA gaskets are available with specifications matched to the individual thermal and mechanical requirements of a range of applications, including turbochargers, downpipes, exhaust manifolds, and exhaust gas recirculation.

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