It is an air hardening material.
S7 tool steel heat treat.
A rule of thumb is that liquid quenched steels may be tempered once air hardening steel require a double temper and high speed steels should have a triple temper.
As an air hardening grade s7 is stable for heat treatment and its combination of high machinability and dimensional stability makes it ideal for a variety of different tool and.
S7 shock resisting tool steel.
Heat to 1200 1250f hold two hours cool in still air.
It can be quenched in air exhibiting minimal distortion on hardening.
Heat to 25 50f below tempering temperature hold two hours cool in still air.
S7 also has medium hot work characteristics making it a versatile tool steel for both cold and warm shock applications as well as plastic molds that require high hardness.
Often made into chisels rivets and punches s7 tool steel can handle repeated impact without fracturing.
Without it critical industrial tools like punches forms blanks or shears could not successfully perform their repetitive work.
The heat treater s role.
A simplified guide to heat treating tool steels.
Air hardening and versatile enough for use in both cold and hot work tooling make s7 suitable for a wide range of applications that require shock resistance size stability and.
All steels must be.
S7 tool steel is an air hardening or oil hardening tool steel that is characterized by its shock resistance excellent toughness high compression strength and medium wear resistance.
S7 tool steel is a shock resistant grade containing high impact properties.
S7 is easy to machine in the annealed condition and can be readily heat treated.
Welding use hot work tool steel filler material 4140 or 4150 type filler material may be satisfactory for small repairs or welds away from working surface of tool.
S7 tool steel grade shapes sizes and technical information from tool steel service inc.
The combination of strength and high toughness makes it a candidate for a wide variety of tooling applications.
These rods and discs are decarb free for a uniform surface that will consistently accept heat treating.
Proper heat treatment is vital to tool steel performance.
S7 a2 d2 and the high speed steels require multiple tempering cycles.
Its charpy a test that measures the impact strength is over 200 ft lb.
S7 tool steel is a shock resisting grade with superior impact properties combined with high toughness machinability and size stability during heat treating.
