用途：轧辊、热轧开坯辊、连铸辊堆焊轧辊堆焊焊丝牌号CMnSiCrMoWVSPNiHRC特点及主要用途KN2240.25-0.351.0-2.00.50-1.05.50-7.500.80-1.501.0-2.00.5-1.00.0100.01845-55用于热轧开坯辊堆焊KN224B0.25-0.551.0-2.00.50-1.05.50-7.500.80-1.501.0-2.00.5-1.00.0100.01553-60用于热轧开坯辊堆焊KN414N0.05-0.150.5-2.50.3-1.511.5-14.50.5-1.52.0-4.040-50埋弧焊丝用于连铸辊堆焊KN414N-O0.05-0.150.5-2.50.3-1.511.5-14.50.5-1.52.0-4.040-50自保护焊丝用于连铸辊堆焊)