| abstract |
A high purity, low interstitial ferritic stainless steel which in the as-welded condition exhibits a combination of improved resistance to intergranular corrosion, good resistance to general corrosion and improved impact resistance. The steel broadly contains by weight from about 20.0 percent to about 35.0 percent chromium, from about 0.75 percent to about 1.20 percent molybdenum, from about 0.10 percent to about 0.30 percent silicon, up to about 0.020 percent phosphorous, up to about 0.020 percent sulfur, up to about 0.0030 percent carbon, from about 0.0050 percent to about 0.0125 percent nitrogen and columbium from about 13 to about 29 times the nitrogen content. |