Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium
Patent
1978-01-10
1979-05-22
Steiner, Arthur J.
Specialized metallurgical processes, compositions for use therei
Processes
Free metal or alloy reductant contains magnesium
75125, 75128G, 75128N, 75128Z, 75128T, 75128W, 148 37, C22C 3806, C22C 3848, C22C 3850
Patent
active
041557522
ABSTRACT:
Described herein is a ferritic chrome-molybdenum-nickel steel, containing specified amounts of niobium, zirconium and aluminum, of high chemical resistance against general and intercrystalline corrosion attack, as well as against pitting, crevice and stress corrosion in chloride-containing solutions. The described steel is useful for the fabrication of articles which must exhibit a 0.2-limit of at least 520 N/mm.sup.2 at room temperature; a notched bar impact strength of at least 40 J at 0.degree. C. and at least 70 J at 20.degree. C. in 3-mm U-notch impact specimens; and guaranteed for flat stock such as sheet or strip material up to at least 10 mm thickness and for bar material of at least 60 mm diameter, round of square.
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Brandis Helmut
Kiesheyer Heinrich
Lennartz Gustav
Oppenheim Rudolf
Thielmann Rainer
Steiner Arthur J.
Thyssen Edelstahlwerke AG
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