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Critical Points
One of the most important means of investigating the properti...

Oil-hardening Steel
Heat slowly and uniformly to 1,450 deg.F. and forge thorough...

Annealing Method
Forgings which are too hard to machine are put in pots with ...

Carburizing Low-carbon Sleeves
Low-carbon sleeves are carburized and pushed on malleable-ir...

Crankshaft
The crankshaft was the most highly stressed part of the entir...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Corrosion
This steel like any other steel when distorted by cold worki...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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

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

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

Tungsten
Tungsten, as an alloy in steel, has been known and used for a...

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

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

Machineability
Reheating for machine ability was done at 100 deg. less than ...

Hardening
Steel is hardened by quenching from above the upper critical....

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...

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

Drop Forging Dies
The kind of steel used in the die of course influences the he...

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...



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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