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

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

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

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

S A E Heat Treatments
The Society of Automotive Engineers have adopted certain heat...

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

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

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

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

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

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

Testing And Inspection Of Heat Treatment
The hard parts of the gear must be so hard that a new mill f...

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

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

Blending The Compound
Essentially, this consists of the sturdy, power-driven separa...

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

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

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...

Double Annealing
Water annealing consists in heating the piece, allowing it to...

Heating
Although it is possible to work steels cold, to an extent de...



High Speed Steel






Category: 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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