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Annealing Of Rifle Components At Springfield Armory
In general, all forgings of the components of the arms manufa...

Chromium
Chromium when alloyed with steel, has the characteristic func...

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

Piston Pin
The piston pin on an aviation engine must possess maximum res...

Sulphur
Sulphur is another impurity and high sulphur is even a greate...

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

Carburizing By Gas
The process of carburizing by gas, briefly mentioned on page ...

Optical System And Electrical Circuit Of The Leeds & Northrup Optical Pyrometer
For extremely high temperature, the optical pyrometer is lar...

Annealing Of High-speed Steel
For annealing high-speed steel, some makers recommend using g...

Tool Or Crucible Steel
Crucible steel can be annealed either in muffled furnace or b...

Steel For Chisels And Punches
The highest grades of carbon or tempering steels are to be re...

Heating Of Manganese Steel
Another form of heat-treating furnace is that which is used ...

The Thermo-couple
With the application of the thermo-couple, the measurement of...

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

Application To The Automotive Industry
The information given on the various parts of the Liberty eng...

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

Annealing In Bone
Steel and cast iron may both be annealed in granulated bone. ...

Hardening Operation
Hardening a gear is accomplished as follows: The gear is tak...

Liberty Motor Connecting Rods
The requirements for materials for the Liberty motor connecti...

Corrosion
This steel like any other steel when distorted by cold worki...



Non-shrinking Oil-hardening Steels






Category: ALLOYS AND THEIR EFFECT UPON STEEL

Certain steels have a very low rate of expansion and contraction
in hardening and are very desirable for test plugs, gages, punches
and dies, for milling cutters, taps, reamers, hard steel bushings
and similar work.

It is recommended that for forging these steels it be heated slowly
and uniformly to a bright red, but not in a direct flame or blast.
Harden at a dull red heat, about 1,300 deg.F. A clean coal or coke
fire, or a good muffle-gas furnace will give best results. Fish
oil is good for quenching although in some cases warm water will
give excellent results. The steel should be kept moving in the bath
until perfectly cold. Heated and cooled in this way the steel is
very tough, takes a good cutting edge and has very little expansion
or contraction which makes it desirable for long taps where the
accuracy of lead is important.

The composition of these steels is as follows:

Per cent
Manganese 1.40 to 1.60
Carbon 0.80 to 0.90
Vanadium 0.20 to 0.25





Next: Effect Of A Small Amount Of Copper In Medium-carbon Steel

Previous: Properties Of Alloy Steels



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