Method of producing clad steel plate having good low-temperature toughness

Abstract From the Canadian patent

A method of producing clad steel plate comprises the steps of preparing an assembly slab by superposing a stainless-steel or nickel alloy cladding material onto base metal consisting, by weight, of 0.020 to 0.06% carbon 0.05% or less silicon, 1.0 to 1.8% manganese 0.03% or less, phosphorus, 0.005% or less sulfur 0.08 to 0.15% niobium, 0.005 to 0.03% titanium 0.05% or less aluminum, 0.002 to, 0.006% nitrogen and one or two elements selected from, among a group consisting of 0.05 to 1.0% nickel 0.05 to, 1.0% copper, 0.05 to 0.5% chromium 0.05 to 0.3% molybdenum, and 0.001 to 0.005% calcium with the balance being iron, and unavoidable impurities and welding its periphery;, heating the slab to …