Crucial roof construction work at the Brazil stadium that will host the 2014 FIFA World Cup Final was completed successfully and on time, due to fast delivery of duplex stainless steels by Sandvik Materials Technology.
Hightex GmbH, a renowned designer of roofing and façade membranes based in Bernau am Chiemsee, Germany, required duplex materials for a specific part of the roof of the iconic Estadio Jornalista Mario Filho stadium in Maracana, Brazil. The venue, just outside Rio de Janeiro, will also host the opening and closing ceremonies of the 2016 Summer Olympics.
With a tight construction deadline to meet, Hightex opted for hollow bars made from Sanmac 2205 duplex stainless steel, chosen for the manufacturer’s good price and fast delivery.
The grade is a machinability-improved version of Sandvik SAF 2205TM. The latter material accounts for more than 80% of applications of duplex stainless steel grades and is characterized by excellent machinability, high mechanical strength and good weldability.
Mr Vladimir Renner purchasing manager at Hightex said that “We wanted to find a supplier of duplex stainless steel that could deliver quickly but also at a competitive price. We selected Sandvik on that basis and they were able to deliver on time as promised.”
Sanmac 2205 was used for the construction of the 60 cupolas, due in part to its capacity to handle pressures of 460 kN which provides the roof with a safety margin greater than 2. The grade’s superior welding properties enabled strong welding to another stainless steel, while other elements included glass fabric material coated with Teflon for the roof itself.
Mr Dennis Ruh Dusseldorf based Regional Product Manager of Sandvik Materials Technology said that “We were the only supplier able to deliver within six weeks. Sandvik is very proud to have provided its support, delivery and quality control to the Maracanã Stadium roof construction project. With the project completed successfully within schedule, visitors to the stadium can now enjoy the excitement of this year’s 2014 FIFA World Cup Final and look forward to the Summer Olympics in 2016.”
Source – Strategic Research Institute