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Steel Making

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

Compensating Leads
By the use of compensating leads, formed of the same materia...

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

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

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

Uses Of The Various Tempers Of Carbon Tool Steel
DIE TEMPER.--No. 3: All kinds of dies for deep stamping, pres...

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

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...

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

Silicon
SILICON is a very widespread element (symbol Si), being an es...

Preventing Carburizing By Copper-plating
Copper-plating has been found effective and must have a thick...

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

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

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

Tempering Round Dies
A number of circular dies of carbon tool steel for use in too...

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

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

Quenching Tool Steel
To secure proper hardness, the cooling of quenching of steel ...



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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