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.
S7 tool steel heat treat.
S7 d2 and a2 tool steels are usually always through hardened in vacuum furnaces to preserve clean smooth surface profiles.
The heat treater s role.
It is an air hardening material.
All steels must be.
It can be quenched in air exhibiting minimal distortion on hardening.
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.
Without it critical industrial tools like punches forms blanks or shears could not successfully perform their repetitive work.
Heat to 25 50f below tempering temperature hold two hours cool in still air.
S7 tool steel is a shock resistant grade containing high impact properties.
These rods and discs are decarb free for a uniform surface that will consistently accept heat treating.
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.
The combination of strength and high toughness makes it a candidate for a wide variety of tooling applications.
Heat to 1200 1250f hold two hours cool in still air.
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.
S7 tool steel grade shapes sizes and technical information from tool steel service inc.
S7 shock resisting tool steel is an air or oil hardening tool steel that is characterized by very high impact toughness.
S7 shock resisting tool steel.
Its charpy a test that measures the impact strength is over 200 ft lb.
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 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.
An oversized diameter allows for finishing to your exact requirements.
Proper heat treatment is vital to tool steel performance.
S7 a2 d2 and the high speed steels require multiple tempering cycles.
S7 tool steel is a shock resisting grade with superior impact properties combined with high toughness machinability and size stability during heat treating.
