Gränges is a global leader in aluminium rolling and recycling in selected niches. We’re committed to creating circular and sustainable aluminium solutions in partnership with our customers and suppliers - for a better future.
Gränges is a global leader in aluminium rolling and recycling. We help customers grow and transition to climate neutrality. Our products enable efficient climate control in transportation and buildings, electrification and battery components, recyclable packaging, and more.
Gränges Endure is our product brand for aluminium solutions that combine the highest technical and sustainability performance.
Gränges’ ambition is to create circular and sustainable aluminium solutions for a better future. Sustainability, alongside people and safety, is a key driver of the company’s long-term competitiveness and value creation. These elements are at the core of Gränges’ business and strategy, emphasizing their central role in differentiating the company within the industry.
Investor Relations Director
Anna Hedenberg
anna.hedenberg@granges.com +46 76 869 96 48
Working at Gränges means being surrounded by proud, talented and motivated colleagues – in a safe work environment. Our success is based on extensive industrial craftsmanship and highly employees.
Today 3,500 employees make up Gränges Group in three regions: Americas, Asia and Europe. Gränges is a global company with local presence. Are you joining the team?
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VP Communication & Investor Relations
Sara Lander Hyléen
sara.hyleen@granges.com +46 709 16 16 41
– Lower weight, higher performance
Weight reduction will be 15 per cent when heatexchangers adopt two-piece folded tube. Total costsaving will be 5–20 per cent for a two-piece folded tube heat exchanger.
The tube wall thickness can be reduced up to 20 per cent when compared to that of a traditional extruded tube, providing a larger free flow area for the refrigerant, thus reducing refrigerant side pressure drop. Small hydraulic diameter, along with the micro-channel flow characteristics, provide for excellent heat transfer on the refrigerant side.
Because Gränges tube stock materials can have built-in corrosion protection mechanisms, such as brown-band and protective multi-layers, there is no need for additional Zn coating, resulting not only in a longer time to failure, but also improved heat exchanger integrity throughout the whole lifetime. A Folded Tube heat exchanger with Gränges MULTICLAD® system can be leak-free after 100 days of SWAAT testing (ASTM G85-A3).
Microchannel folded tube is produced by precise roll forming of an aluminum tube stock material. One kind is two-piece folded tube, which outside tube and inner fin are formed separately and then assembled to be a whole tube. Another is one-piece folded tube formed by one single aluminumstrip. Folded tube can be used as refrigerant tube in brazed aluminum heat exchangers such as condensers and evaporators for automotive, as well as air conditioning and refrigeration applications. Combining Folded Tube technology with Gränges’ portfolio of tube stock materials enable high reliability, light weight, cost reduction and improved performance.
Parameter
Two-piece
One-piece
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