1117 will respond to any carburizing method and subsequent heat treatment. Case hardening results in a hard case and relatively soft core. Carburize at 1650° -1700° F, oil or water quenching and tempering at 300° F. For a hard case and tough core, the following heat treatment is suggested: Carburize at 1650° -1700° F for approximately 8 hours, cool in oven and reheat to 1400°-1450° F. Quench in water and draw at 300°-350° F. Carburizing depth typically .060-.070".
Mechanical Properties
Condition Tensile Strength (PSI) Yield Strength (PSI) Reduction of Area Elongation in 2" Brinell Hardness 1" Rd, cold drawn 80,000 70,000 50 16 156
Chemical Composition Carbon 0.14 - 0.2 Manganese 1 - 1.3 Phosphorus 0.04 max Sulphur 0.08 - 0.13 General Information Physical Data Density (lb / cu. in.) 0.283 Mechanical Data Form Round Bar Condition Cold Drawn Temper 68 Tensile Strength 69 Yield Strength 58 Elongation 21 Reduction of Area 52 Rockwell B87 Brinnell 137 Form Round Bar Condition Hot Rolled Temper 68 Tensile Strength 62 Yield Strength 34 Elongation 27 Reduction of Area 47 Rockwell B78 Brinnell 131
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