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Steel Making

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

Annealing Work
With the exception of several of the higher types of alloy s...

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

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

Pyrometers For Molten Metal
Pyrometers for molten metal are connected to portable thermoc...

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

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

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

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

The Quenching Tank
The quenching tank is an important feature of apparatus in c...

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

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

Protectors For Thermo-couples
Thermo-couples must be protected from the danger of mechanica...

Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...

Complete Calibration Of Pyrometers
For the complete calibration of a thermo-couple of unknown e...

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

Martien was probably never a serious contender for the honor ...

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

High Speed Steel


For centuries the secret art of making tool steel was handed down
from father to son. The manufacture of tool steel is still an art
which, by the aid of science, has lost much of its secrecy; yet
tool steel is today made by practical men skilled as melters,
hammer-men, and rollers, each knowing his art. These practical
men willingly accept guidance from the chemist and metallurgists.

A knowledge of conditions existing today in the manufacture of
high-speed steel is essential to steel treaters. It is well for
the manufacturer to have steel treaters understand some of his
troubles and difficulties, so that they will better comprehend the
necessity of certain trade customs and practices, and, realizing
the manufacturer's desire to cooperate with them, will reciprocate.

The manufacturer of high-speed steel knows and appreciates the
troubles and difficulties that may sometimes arise in the heat-treating
of his product. His aim is to make a uniform steel that will best
meet the requirements of the average machine shop on general work,
and at the same time allow the widest variation in heat treatment
to give desired results.

High speed steel is one of the most complex alloys known. A
representative steel contains approximately 24 per cent of alloying
metals, namely, tungsten, chromium, vanadium, silicon, manganese,
and in addition there is often found cobalt, molybdenum, uranium,
nickel, tin, copper and arsenic.

Next: Standard Analysis

Previous: Tempering Colors On Carbon Steels

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