Steel Alloy

摘要

A steel alloy comprising: from 0.8 to 1.2 wt% carbon from 0.1 to 0.8 wt% manganese from 0.5 to 2.5 wt% chromium from 0.3 to 0.8 wt% vanadium optionally one or more of from 0 to 1.0 wt% silicon from 0 to 0.3 wt% molybdenum from 0 to 0.5 wt% copper from 0 to 3..5 wt% nickel from 0 to 0.1 wt% aluminium from 0 to 0.05 wt% phosphorus from 0 to 0..05 wt% sulphur from 0 to 0..1 wt% titanium from 0 to 0..1 wt% niobium from 0 to 0..1 wt% tantalum from 0 to 0..1 wt% tungsten from 0 to 0..1 wt% boron from 0 to 0..1 wt% nitrogen from 0 to 0.1 wt% oxygen from 0 to 0.1 wt% calcium from 0 to 0.1 wt% cobalt and the balance iron, together with unavoidable impurities.