7/8-9X4 1/2 ASTM A193 ASME B16.5 B-7 B7 Stud Continuous Thread Plain (Pack Qty 50) BC-8772B7

B7 studs are best suited for use in temperatures between 300° - 400° C Bolts shall be made from a grade B7 alloy which conforms to the following chemical composition requirements Carbon: 0.37-0.49%; Manganese: 0.65-1.10%; Phosphorus: 0.035% maximum; Sulfur: 0.040% maximum; Silicon: 0.15-0.35% ; Chromium: 0.75-1.20% ; Molybde