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Making Steel Balls
Steel balls are made from rods or coils according to size, st...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

Manganese
Manganese adds considerably to the tensile strength of steel,...

Sulphur
SULPHUR is another element (symbol S) which is always found i...

Quenching The Work
In some operations case-hardened work is quenched from the bo...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

Steel Worked In Austenitic State
As a general rule steel should be worked when it is in the a...

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

Chromium
Chromium when alloyed with steel, has the characteristic func...

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

Molybdenum
Molybdenum steels have been made commercially for twenty-five...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

A Chromium-cobalt Steel
The Latrobe Steel Company make a high-speed steel without tun...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

Care In Annealing
Not only will benefits in machining be found by careful anne...

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...



Tool Or Crucible Steel






Category: ANNEALING

Crucible steel can be annealed either in muffled furnace or by
being packed. Packing is by far the most satisfactory method as it
prevents scaling, local hard spots, uneven annealing, or violent
changes in shape. It should be brought up slowly to just above
its calescent or hardening temperature. The operator must know
before setting his heats the temperature at which the different
carbon content steels are hardened. The higher the carbon contents
the lower is the hardening heat, but this should in no case be
less than 1,450 deg.F.





Next: Annealing Alloy Steel

Previous: Annealing Of High-speed Steel



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