... -20 C:0.1,sI:2.B :0.9 Cr:0.5,Fe:4. Low hardness and toughness, corrosion ... repairHRC22-25 C:0.1 Si :3 B :1 Cr:1 Fe: 6Cast iron, steel parts, glass mould repair ... of edgesHRC 35-40 C:0.3 Si:3 Cr:8 Fe:5Hardness modest, applicable to the axis, ... so on repairHRC 50-55 C:0.5 Si:3 Cr:12 Fe 5 Used in general valve, seal face, oil ... 60 C:0.9 Si:1 B:3.2 Cr:16 Fe: 5 company profile Nuclear 857 manufactory is ...