Weld Mold® 935
Weld Mold 935 is a carbon manganese type Oil hardening tool steel. 935 may be completely heat-treated according to oil hardening heat treatment procedures. Deposits are fine grained and lend themselves very well to producing fine edged configurations after machining.
Applications
Used primarily for repairing oil hardening dies and tools including types 0-1 thru 0-6. Examples include cold working units such as blanking dies, forming dies, cutting dies, and shears, and other cutting edges.
Procedure
Prepare area to be welded by grinding out cracks and other defects. Remove all oxides and other contaminates. Preheat oil hardening tool steel units from 275º F to 450º F depending on their size, and maintain temperature during welding. Use a lower preheat temperature for small units that are subject to heat input from the arc. On materials other than oil hardening, preheat to specified temperature according to the base metal. Deposit short stringer beads. Peen each deposit rapidly when forgeable. After welding, cool unit to 150º F in still air, then temper at 450º F for one hour per inch of thickness.
SMAW - DC+ Hold A Short Arc
GMAW - DC+ 75% Ar 25% CO2 or 92%Ar/8% CO2
GTAW - DC - 100%Ar
Technical Data
- Available Processes: SMAW, GMAW and GTAW
- Hardness: Rockwell C 57-60, as welded
- Heat Treatment: Use O-1 Procedure
- Class: AISI O-1
