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Steel Making

Carbon Steels For Different Tools
All users of tool steels should carefully study the different...

Effect Of A Small Amount Of Copper In Medium-carbon Steel
This shows the result of tests by C. R. Hayward and A. B. Joh...

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

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

Annealing To Relieve Internal Stresses
Work quenched from a high temperature and not afterward tempe...

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

Placing The Thermo-couples
The following illustrations from the Taylor Instrument Compan...

Making Steel Balls
Steel balls are made from rods or coils according to size, st...

A Chromium-cobalt Steel
The Latrobe Steel Company make a high-speed steel without tun...

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

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

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

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

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

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

Temperature Recording And Regulation
Each furnace is equipped with pyrometers, but the reading an...

Carburizing Material
The simplest carburizing substance is charcoal. It is also th...

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

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

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



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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