
Yantai Refra Heat Resistant Alloys Co., Ltd. was established in 1991. As a Sino-French joint venture, dra wing on French management models and systems, the company has consistently adhered to Manoir's technical procedures and quality standards.
Specializing in centrifugal casting tubes and static casting fittings made of heat-resistant alloys, our products include cracking radiant coils, reformer tubes, DRI tubes, hearth rolls, and lehr rolls designed for the petrochemical, steel, and float glass industries.
The company has remained dedicated to the field of high-temperature heat resistant alloys. evolving through joint ventures, technology introduction, independent innovation, and brand revitalization into one of China's key enterprises in the high-temperature alloys industry.
Our products are extensively used in key industrial sectors such as petrochemicals, steel, and architecture.
By integrating advanced technology, modern equipment, and robust metallurgical R&D with decades of experience, Yantai Manoir provides highly reliable and cost-effective solutions to meet the demanding needs of our clients.

RÉFRALLOY 45A is a cast aluminum-added alloy containing 24% Chromium, 45% Nickel, 4% Aluminum, and trace elements. It was specifically developed to resist coke formation and carburization issues commonly encountered in steam- cracking processes for ethylene production It is characterized by the following features: - High resistance to carburization and oxidation - Excellent creep properties - Acceptable weldability, even in aged conditions - Self-protective Al₂O₃ oxide layer
By adding the Al element, a continuous and dense Al₂O₃ oxide film with high thermal stability can be automatically formed under high-temperature conditions. It has excellent resistance to high-temperature creep, high-temperature oxidation and corrosion, with a working temperature as high as 1200℃. It significantly improves the catalytic efficiency and capacity during the reduction process, reduces energy consumption and extends the service life of the furnace tube.
By adding the Al element, a continuous and dense Al₂O₃ oxide film with high thermal stability can be automatically formed under high-temperature conditions. It has excellent resistance to high-temperature creep, high-temperature oxidation and corrosion, with a working temperature as high as 1200℃. It significantly improves the catalytic efficiency and capacity during the reduction process, reduces energy consumption and extends the service life of the furnace tube.




中文
English