Cost Reduced Steel for Hydrogen Technology with High Resistance to Hydrogen-Induced Embrittlement

Abstract

A corrosion-resistant, hot and cold formable and weldable steel for use in hydrogen-induced technology with high resistance to hydrogen embrittlement has the following composition: 0.01 to 0.4 percent by mass of carbon, ≦3.0 percent by mass of silicon, 0.3 to 30 percent by mass of manganese, 10.5 to 30 percent by mass of chromium, 4 to 12.5 percent by mass of nickel, ≦1.0 percent by mass of molybdenum, ≦0.2 percent by mass of nitrogen, 0.5 to 8.0 percent by mass of aluminum, ≦4.0 percent by mass of copper, ≦0.1 percent by mass of boron, ≦1.0 percent by mass of tungsten, ≦5.0 percent by mass of cobalt, ≦0.5 percent by mass of tantalum, ≦2.0 percent by mass of at least one of the elements: niobium, titanium, vanadium, hafnium and zirconium, ≦0.3 percent by mass of at least one of the elements: yttrium, scandium, lanthanum, cerium and neodymium, the remainder being iron and smelting-related steel companion elements.

Dependencies are inferred from the claim text.