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The Electric Process
The fourth method of manufacturing steel is by the electric f...

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

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

Piston Pin
The piston pin on an aviation engine must possess maximum res...

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

Silicon
SILICON is a very widespread element (symbol Si), being an es...

Leeds And Northrup Optical Pyrometer
The principles of this very popular method of measuring tempe...

Annealing
There is no mystery or secret about the proper annealing of d...

Air-hardening Steels
These steels are recommended for boring, turning and planing...

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

Flange Shields For Furnaces
Such portable flame shields as the one illustrated in Fig. 1...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

The Influence Of Size
The size of the piece influences the physical properties obta...

Annealing
ANNEALING can be done by heating to temperatures ranging from...

For Milling Cutters And Formed Tools
FORGING.--Forge as before.--ANNEALING.--Place the steel in a ...

Pyrometers
Armor plate makers sometimes use the copper ball or Siemens' ...

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

Properties Of Steel
Steels are known by certain tests. Early tests were more or l...

Case-hardening Treatments For Various Steels
Plain water, salt water and linseed oil are the three most co...



Carbon In Tool Steel






Category: HARDENING CARBON STEEL FOR TOOLS

Carbon tool steel, or tool steel as it is commonly called, usually
contains from 80 to 125 points (or from 0.80 to 1.25 per cent)
of carbon, and none of the alloys which go to make up the high
speed steels. This was formerly known also as crucible or cast
steel, or crucible cast steel, from the way in which it was made.
This was before the days of steel castings. The advent of these
caused so much confusion that the term was soon dropped. When we
say tool steel, we nearly always refer to carbon-tool steel,
high-speed steel being usually designated by that name.

For many purposes carbon-steel cutters are still found best, although
where a large amount of material is to be removed at a rapid rate,
it has given way to high-speed steels.





Next: Carbon Steels For Different Tools

Previous: Take Time For Hardening



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