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Steel Making

Quenching The Work
In some operations case-hardened work is quenched from the bo...

Quality And Structure
The quality of high-speed steel is dependent to a very great ...

Process Of Carburizing
Carburizing imparts a shell of high-carbon content to a low-...

Crucible Steel
Crucible steel is still made by melting material in a clay or...

Hardness Testing
The word hardness is used to express various properties of me...

Connecting Rods
The material used for all connecting rods on the Liberty engi...

Carbon-steel Forgings
Low-stressed, carbon-steel forgings include such parts as car...

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

The Theory Of Tempering
Steel that has been hardened is generally harder and more br...

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

Heat Treatment Of Steel
Heat treatment consists in heating and cooling metal at defin...

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

High Speed Steel
For centuries the secret art of making tool steel was handed ...

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

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Calibration Of Pyrometer With Common Salt
An easy and convenient method for standardization and one whi...

Effects Of Proper Annealing
Proper annealing of low-carbon steels causes a complete solu...

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

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

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



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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