TABLE 1 STUD-WELDING PROCESS SELECTION CAPACITOR DISCHARGE STUD WELDING PARAMETERS STUD ARC WELDING GAP AND CONTACT METHODS DRAWN ARC METHOD STUD SHAPE STUD DIAMETER OR AREA STUD METAL BASE METAL BASE-METAL THICKNESS STRENGTH CRITERIA [...]... TABLE 1 STANDARD CAPACITOR DISCHARGE STUD FASTENER LOAD STRENGTHS STUD MATERIAL STUD SIZE MAXIMUM FASTENING TORQUE(A) n·m lbf · in ULTIMATE TENSILE LOAD kn lbf MAXIMUM SHEAR LOAD kn lbf TABLE 2 WELDING CAPABILITIES OF CAPACITOR DISCHARGE STUD FASTENERS BASE MATERIAL STUD MATERIAL MILD STEEL STAINLESS (TYPES 1008, STEEL 1010) (TYPES 304, 3 05) ALUMINUM (53 56, 6061 ) BRASS (7 0-3 0, 6 5- 3 5) ... FOR COUNTERBORE AND COUNTERSINK WELD FLASH CLEARANCE STUD BASE DIAMETER COUNTERBORE A B mm in mm in mm in 90° COUNTERSINK C mm in TABLE 5 RECOMMENDED BASE METAL THICKNESSES FOR STUD ARC WELDING STUD BASE DIAMETER STEEL BASE METAL FOR FULL STRENGTH(A) MINIMUM(B) ALUMINUM BASE METAL WITHOUT BACKUP MINIMUM WITH BACKUP(C) mm mm mm mm in in in in mm in TABLE 6 TYPICAL COMBINATIONS OF BASE AND STUD METALS... WITHOUT BACKUP MINIMUM WITH BACKUP(C) mm mm mm mm in in in in mm in TABLE 6 TYPICAL COMBINATIONS OF BASE AND STUD METALS FOR STUD ARC WELDING BASE METAL STUD METAL TABLE 7 MECHANICAL PROPERTIES OF LOW-CARBON STEEL STUD ARC WELDED FASTENERS STUD THREAD DIAMETER(A) MEAN EFFECTIVE THREAD AREA(B) YIELD TENSILE LOAD(C) ULTIMATE TENSILE LOAD YIELD TORQUE(D) mm2 in.2 kn kn j lbf lbf ULTIMATE TORQUE ft · j . cycl es m m in. m m in. STEEL AND STAINLESS STEEL ALUMINUM (A)