CHROMIUM-MOLYBDENUM STEEL PLATE HAVING EXCELLENT CREEP STRENGTH AND METHOD FOR MANUFACTURING SAME
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Representative
Stefan Markus Zech
Application number
EP19888281A1
Kind
A1
Document number
3889302
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CHROMIUM-MOLYBDENUM STEEL PLATE HAVING EXCELLENT CREEP STRENGTH AND METHOD FOR MANUFACTURING SAME

3889302 - EP19888281A1 - EPO

Application Nov 29, 2019 - Publication Oct 06, 2021

Hyun-Je SUNG Dae-Woo KIM

Abstract

Provided are a chromium-molybdenum steel plate having excellent creep strength and a method for manufacturing same. The chromium-molybdenum steel plate of the present invention comprises, by weight%, 0.11-0.15% of C, 0.10% or less of Si (exclusive of 0%), 0.3-0.6% of Mn, 0.010% or less of S (exclusive of 0%), 0.015% or less of P (exclusive of 0%), 2.0-2.5% of Cr, 0.9-1.1% of Mo, 0.65-1.0% of V, 0.25% or less of Ni (exclusive of 0%), 0.20% or less of Cu (exclusive of 0%), 0.07% or less of Nb (exclusive of 0%), 0.03% or less of Ti (exclusive of 0%), 0.015% or less of N (exclusive of 0%), 0.025% or less of Al (exclusive of 0%), 0.002% or less of B (exclusive of 0%), and the remainder of Fe and unavoidable impurities.

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