ULTRA-HIGH STRENGTH REBAR

摘要

A high mechanical strength reinforcement, hot rolled steel, in particular, rebar suitable for construction in areas prone to seismic activity, comprising iron, at most 0.4 weight percent carbon, at most about 0.4 weight percent vanadium and/or niobium, at most about 1.6 weight percent of manganese, at most about 0.5 weight percent of silicon, and the usual residual elements of scrap steel. A method of reinforcing a dwelling from damage resulting from seismic activity, the method comprising providing, as a component of the dwelling, at least one high strength, hot rolled steel rebar with high mechanical strength which meets the requirements of construction, in particular, rebar suitable for construction in areas prone to seismic activity, comprising iron, at most 0.4 weight percent carbon, at most about 0.4 weight percent vanadium and/or niobium, at most about 1.6 weight percent of manganese, at most about 0.5 weight percent of silicon, and the usual residual elements of scrap steel.

主权项

1. A reinforcement steel consisting essentially of, in addition to iron:
carbon: between 0.2 and 0.4 weight percent; manganese: between 1.0 and 1.6 weight percent; silicon: between 0.1 and 0.5 weight percent; copper: between 0.1 and 0.5 weight percent; vanadium: between 0.1 and 0.4 weight percent; chromium: between 0.01 and 0.5 weight percent; nickel: between 0.01 and 0.5 weight percent; molybdenum: trace to 0.1 weight percent; niobium: trace to 0.1 weight percent; phosphor: trace to 0.1 weight percent; sulfur: trace to 0.1 weight percent;wherein:
when vanadium is present at 0.1 to less than 0.3 weight percent, -no intentionally added niobium is present; when vanadium is present at 0.3 to at most about 0.35 weight percent, less than 0.05 weight percent intentionally added niobium is present; and the usual residual elements of scrap steel.