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IMOA, the International Molybdenum Association which representing the interests of molybdenum producers, converters, traders and end users, has launched three case studies which examine how the unique properties of molybdenum are making a contribution to sustainable development in the construction and power generation industries.
The first two studies examine the role of molybdenum in sustainable buildings. The Federal Building in San Francisco, USA, incorporates a computer-controlled sunscreen made from molybdenum-containing Type 316 stainless steel. Combined with natural ventilation, this greatly reduces the need for air conditioning, cutting the building’s energy consumption by two-thirds. The molybdenum in the stainless steel significantly increases its resistance to corrosion from the urban coastal environment and helps to guarantee a design life of 100 years.
The second study showcases the use of high-strength steel (HSS) in the roof of the Friends Arena in Stockholm, Sweden. HSS enables stronger and lighter structures than conventional steel, meaning that less steel was needed, saving resources, cost and energy in production and transportation. Molybdenum is a significant raw material in the highest grades of HSS and contributed to a 17% reduction in the quantity of steel used, a 17% reduction in greenhouse gas emissions over the lifecycle of the stadium and a 14.5% saving in the roof cost due to the reduced tonnage and costs of fabrication.
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Source: Steel Times International