USES.
Hot shear blades, hot punches, header and gripper dies; used in bolt and rivet making. Also excellent for compression sets and in general for all hot work.
HEAT TREATMENT.
Will stand high hardening heats, similar to high speed steel, 1700 degrees Fahrenheit and then 2300 degrees Fahrenheit. Harden either in air or oil. Keep away from water. Draw to 500 degrees Fahrenheit.
TYPICAL ANALYSIS OF SPECIAL ALLOY STEEL.
| Carbon | . | 78 | % |
| Vanadium | . | 29 | % |
| Phosphorus | . | 014 | % |
| Sulphur | . | 016 | % |
| Manganese | . | 324 | % |
| Silicon | . | 296 | % |
| Iron (by deduction) | 98. | 28 | % |
USES.
Specially useful in tools subject to shock, such as hand and pneumatic chisels, boilermakers caulking tools and rivet sets. Also for cold upsetting dies, cold punches, shear blades and stamping dies. A special grade of this steel makes excellent taps.
HEAT TREATMENT.
Heat slowly to a low red, about 1400 degrees Fahrenheit, or if low carbon content to 1500 degrees Fahrenheit; being very careful not to over-heat. Quench in good clean tempered water; keeping tool constantly in motion. Draw from 250 degrees Fahrenheit to 400 degrees Fahrenheit.