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Carburizing Low-carbon Sleeves
Low-carbon sleeves are carburized and pushed on malleable-ir...

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

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

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

Temperature For Annealing
Theoretically, annealing should be accomplished at a tempera...

Steel Can Be Worked Cold
As noted above, steel can be worked cold, as in the case of ...

Rate Of Absorption
According to Guillet, the absorption of carbon is favored by ...

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

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

Knowing What Takes Place
How are we to know if we have given a piece of steel the ver...

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

Nickel-chromium
A combination of the characteristics of nickel and the charac...

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

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

Typical Oil-fired Furnaces
Several types of standard oil-fired furnaces are shown herew...

Hardening Carbon Steel For Tools
For years the toolmaker had full sway in regard to make of st...

Steel Before The 1850's
In spite of a rapid increase in the use of machines and the ...

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

Hardening High-speed Steel
In forging use coke for fuel in the forge. Heat steel slowly ...

A Satisfactory Luting Mixture
A mixture of fireclay and sand will be found very satisfactor...



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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