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Steel Making

Preventing Cracks In Hardening
The blacksmith in the small shop, where equipment is usually ...

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

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

The Effect
The heating at 1,600 deg.F. gives the first heat treatment w...

The Influence Of Size
The size of the piece influences the physical properties obta...

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

Take Time For Hardening
Uneven heating and poor quenching has caused loss of many ve...

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

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

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

Heat Treatment Of Lathe Planer And Similar Tools
FIRE.--For these tools a good fire is one made of hard foundr...

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

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

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

High-carbon Machinery Steel
The carbon content of this steel is above 30 points and is ha...

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

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

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

Heat-treating Equipment And Methods For Mass Production
The heat-treating department of the Brown-Lipe-Chapin Company...



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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