OIL HARDENING FLAT TOOL STEEL STOCK / A-5 A5 / 2 Pieces @ 3/8" X 1" X 12"

Description: OIL HARDENING FLAT TOOL STEEL STOCK / A-5 A5 / 2 Pieces @ 3/8" X 1" X 12" S5, also known as S5 Shock-Resisting Tool Steel, is a medium carbon content tool steel. What makes this oil- hardening tool steel unique is it's silicon-manganese content. This blend creates a tool steel that exhibits the highest impact toughness of any "S" grade tool steel. S5 is an excellent choice where the properties of silicon- manganese steels are desired in combination with well-known advantages of oil-hardening steels. A reduced tendency to distort or crack in heat treatment is accordingly combined with high toughness in S5. In fact, S5 can be hardened to approx. 62 Rockwell C. This makes S5 and better choice for applications where a higher strength than S7 shock absorbing steel can provide. It should be noted that S5 is typically oil quenched, but in some instances where the parts are simple in geometry, water quenching may be appropriate as well. HEAT TREATING INSTRUCTIONS HARDENING CRITICAL TEMPERATURE: AC1: 1410°F (766°C) PREHEATING: HEAT AT A RATE NOT EXCEEDING 400°F PER HOUR (222°C PER HOUR). FOR COMPLEX AND LARGE TOOLS, HEAT TO 1150-1250°F (621-677°C) AND EQUALIZE. THEN HEAT TO 1300-1400°F (704-760°C) AND EQUALIZE. FOR SIMPLE GEOMETRIES, USE ONLY THE SECOND PREHEATING TEMPERATURE RANGE. AUSTENITIZING (HIGH HEAT): HEAT SLOWLY FROM THE PREHEAT. FOR OIL QUENCHING: 1600 - 1700°F (871 - 927°C) FOR WATER QUENCHING: 1550 - 1650°F (842 - 899°C) SOAK FOR 30 MINUTES FOR THE FIRST INCH (25.4 MM) OF THICKNESS, PLUS 15 MINUTES FOR EACH ADDITIONAL INCH (25.4 MM) OF THICKNESS. QUENCHING: OIL OR WATER TO 150-125°F (66-51°C). TEMPERING: TEMPER IMMEDIATELY AFTER QUENCHING. HOLD AT TEMPERATURE FOR 1 HOUR PER INCH (25.4 MM) OF THICKNESS, 2 HOURS MINIMUM, THEN AIR COOL TO AMBIENT TEMPERATURE. TO MINIMIZE INTERNAL STRESSES IN CROSS SECTIONS GREATER THAN 6 INCHES (152.4 MM) AND TO IMPROVE STABILITY IN TOOLS THAT WILL BE EDM’D AFTER HEAT TREATMENT, A SOAKING TIME OF 4 TO 6 HOURS AT THE TEMPERING TEMPERATURE IS STRONGLY RECOMMENDED. CRYOGENIC TREATMENT: SOME PREFER TO DO CRYOGENIC TREATMENT AS AN EXTENSION OF THE QUENCH FROM THE AUSTENITIZING TREATMENT. OTHERS PREFER TO CRYOGENICALLY TREAT AFTER TEMPERING. ANNEALING ANNEALING MUST BE PERFORMED AFTER HOT WORKING AND BEFORE RE-HARDENING. HEAT AT A RATE NOT EXCEEDING 400°F PER HOUR (222°C PER HOUR) TO 1425 - 1475°F (773 - 801°C), AND HOLD AT TEMPERATURE FOR 1 HOUR PER INCH (25.4MM) OF MAXIMUM THICKNESS; 2 HOURS MINIMUM. THEN COOL SLOWLY WITH THE FURNACE AT A RATE NOT EXCEEDING 50°F PER HOUR (28°C PER HOUR) TO 1000°F (538°C). CONTINUE COOLING TO AMBIENT TEMPERATURE IN THE FURNACE OR IN AIR. THE RESULTANT HARDNESS SHOULD BE A MAXIMUM OF 229 HBW. QUICK INQUIRY ]

Price: 24 USD

Location: Petersburg, Virginia

End Time: 2025-02-10T19:51:44.000Z

Shipping Cost: N/A USD