COST REDUCED STEEL FOR HYDROGEN TECHNOLOGY WITH HIGH RESISTANCE TO HYDROGEN INDUCED EMBRITTLEMENT
A corrosion-resistant, warm or cold formable and weldable steel for use in hydrogen technology with high resistance to hydrogen-induced embrittlement has the following composition (by mass %): 0.01 to 0.4% carbon, <=3.0% silicon, 0.3 to 30% manganese, 10.5 to 30% chromium, 4 to 12.5% nickel, <= 1.0% molybdenum, <= 0.2% nitrogen, 0.5 to 8.0% aluminum, <= 4.0% copper, <= 0.1% boron, <= 1.0% tungsten, <= 3% cobalt, <= 0.5% tantalum, <= 2.0% of least one of the elements: niobium, titanium, vanadium, hafnium and zirconium, <= 0.3% of at least one of the elements yttrium, scandium, lanthanum, cerium and neodymium, the remainder being iron and smelting-related, steel companion elements.