S1 SHOCK RESISTING TOOL STEEL

 

 

APPLICATIONS

Typical uses are hand and pneumatic chisels, heavy duty punches, screwdriver bits, shear blades, boilermakers tools, swaging dies, pharmaceutical punches and dies and cold mandrels.

 

ANNEALING

To prevent excessive scaling or decarburisation pack in sealed container with a suitably inert material.  Heat to 790°C / 820°C, hold until uniform then slow cool at not faster than 25°C per hour to 650°C followed by air cooling.  Properly annealed S1 should have a maximum hardness of 235 HB.