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Steel Making

Refining The Grain
This is remedied by reheating the piece to a temperature slig...

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

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

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

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

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

Classifications Of Steel
Among makers and sellers, carbon tool-steels are classed by g...

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

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

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

Protective Screens For Furnaces
Workmen needlessly exposed to the flames, heat and glare from...

Sulphur
SULPHUR is another element (symbol S) which is always found i...

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

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

Manganese
Manganese adds considerably to the tensile strength of steel,...

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

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

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

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

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



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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