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Steel Making

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Pickling The Forgings
The forgings were then pickled in a hot solution of either ni...

Rate Of Cooling
At the option of the manufacturer, the above treatment of gea...

Mushet And Bessemer
That Mushet was "used" by Ebbw Vale against Bessemer is, perh...

Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...

Gears
The material used for all gears on the Liberty engine was sel...

Impact Tests
Impact tests are of considerable importance as an indication ...

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

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

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

Hardening
The forgings can be hardened by cooling in still air or quen...

Bessemer Process
The bessemer process consists of charging molten pig iron int...

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

Ebbw Vale And The Bessemer Process
After his British Association address in August 1856, Besseme...

Using Illuminating Gas
The choice of a carburizing furnace depends greatly on the fa...



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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