Description:
Vulcan 910-AH is an air harden tool steel electrode which produces a shockresistant weld deposit that is dense, porous-free, and heat treatable. Deposits take a high polish. When a cushioning layer is required, Vulcan 400-CG or 450-DD is recommended.

Typical Applications:
Die cast dies, cold shears, header dies, chisel, punch, and moil points for air hammer tools; blanking and bending dies, trimmer dies, forming dies, extrusion dies, coining dies, and sledge hammer faces.

Procedures:
Remove all cracks and heat checks by grinding or by some other suitable method. Clean area of all oxides and foreign matter. Use an anti-spatter paint on areas that are not to be welded. Preheat unit to a maximum of 600 degrees F if it is in the AISI "S" series tool steels. Be sure unit does not exceed 600 degrees during any phase of the welding process. On other base metals, pre-heat and post-heat accordingly. Deposit stringer beads. Peening is advisable. After welding, cool in still air to 150 degrees F. Temper at 600 degrees F at one hour per inch of thickness.

Hardness: 52 to 57 RC