Sandvik introduces stronger, lighter Pressurfect™ tubing for gasoline direct injection (GDI)
Sandvik is introducing Pressurfect™, a new seamless stainless steel tube that meets growing demands from carmakers to handle higher fuel pressures in tomorrow's gasoline direct injection (GDI) engines.
New Pressurfect™ tube by Sandvik offers favorable mechanical strength and consistent quality that is far superior to conventional welded or carbon steel tube.
Two grades will be available: standard Pressurfect™, an austenitic chromium-nickel steel for fuel rails and fuel lines; and Pressurfect™ XP, a duplex (austenitic ferritic) stainless steel for demanding fuel rail applications.
Next-generation GDI engines
Faced with tougher emissions regulations in Europe, the US and China, the automotive industry is seeking new paths to achieve "sustainable mobility" and "clean power" from smaller combustion engines.
"Carmakers want to take risk off the table and ensure highly efficient performance in lighter weight engines with stronger, safer and lighter materials for tomorrow's GDI systems," said Jari Ponsiluoma, Sandvik global product manager for Pressurfect™.
Sandvik sought to develop a strong, corrosion-resistant material with zero risk of stress corrosion cracking. Another driving factor was growing use of corrosive ethanol blends at higher pressure in fuel systems.
The market for GDI engines continues to grow. China recently specified GDI as one of the power-train technologies of the future. At least 500,000+ GDI-powered vehicles are currently on the road, many using Sandvik stainless tube.