Low-Molybdenum, High-Strength Low-Alloy 80 ksi Steel Plates Formed by Temperature-Controlled Rolling Without Accelerated Cooling

摘要

Steel alloy, and plate formed from a low-molybdenum, high-strength, low-alloy steel, said steel alloy consisting essentially of, in wt. %: C: 0.05-0.07; Mn: 1.5-1.7; Ti: 0.01-0.025; Al: 0.02-0.04; Nb: 0.075-0.1; P: ≦0.01; S: ≦0.003; Mo: 0.1-0.2; and the remainder Fe and inevitable impurities. The plate is produced by rolling from a slab without the use of accelerated cooling.