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Steel Making

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

The Packing Department
In Fig. 56 is shown the packing pots where the work is packe...

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

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

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...

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

Preventing Decarbonization Of Tool Steel
It is especially important to prevent decarbonization in such...

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

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

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

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

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

Affinity Of Nickel Steel For Carbon
The carbon- and nickel-steel gears are carburized separately...

Molybdenum
Molybdenum steels have been made commercially for twenty-five...

Annealing
There is no mystery or secret about the proper annealing of d...

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

Furnace Data
In order to give definite information concerning furnaces, fu...

Surface Carburizing
Carburizing, commonly called case-hardening, is the art of pr...

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



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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