Cu-CONTAINING LOW ALLOY STEEL EXCELLENT IN TOUGHNESS OF WELD HEAT AFFECTED ZONE, AND METHOD FOR MANUFACTURING THE SAME

A Cu-containing low alloy steel includes a chemical composition containing, in % by mass, C: 0.01 to 0.06%, Si: 0.05 to 0.40%, Mn: 0.20 to 0.70%, Ni: 1.20 to 2.50%, Cr: 0.50 to 1.00%, Cu: 0.80 to 1.50%, Mo: 0.20 to 0.60%, Al: 0.010 to 0.050% and Nb: 0.020 to 0.080% and N: 0.005 to 0.020%, and as req...

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Bibliographische Detailangaben
Hauptverfasser:	SASAKI, Gen, HASHI, Kunihiko, HONMA, Yuta
Format:	Patent
Sprache:	eng
Schlagworte:	ALLOYS CHEMISTRY FERROUS OR NON-FERROUS ALLOYS GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUSMETALS OR ALLOYS MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING OR OTHERTREATMENTS METALLURGY METALLURGY OF IRON MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A Cu-containing low alloy steel includes a chemical composition containing, in % by mass, C: 0.01 to 0.06%, Si: 0.05 to 0.40%, Mn: 0.20 to 0.70%, Ni: 1.20 to 2.50%, Cr: 0.50 to 1.00%, Cu: 0.80 to 1.50%, Mo: 0.20 to 0.60%, Al: 0.010 to 0.050% and Nb: 0.020 to 0.080% and N: 0.005 to 0.020%, and as required, Ca: 0.010% or less, the balance consisting of Fe and unavoidable impurities.