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

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

The Pyrometer And Its Use
In the heat treatment of steel, it has become absolutely nece...

Silicon
Silicon prevents, to a large extent, defects such as gas bubb...

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

The Leeds And Northrup Potentiometer System
The potentiometer pyrometer system is both flexible and subst...

Phosphorus
Phosphorus is one of the impurities in steel, and it has been...

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

Suggestions For Handling High-speed Steels
The following suggestions for handling high-speed steels are ...

Detrimental Elements
Sulphur and phosphorus are two elements known to be detrimen...

The Care Of Carburizing Compounds
Of all the opportunities for practicing economy in the heat-t...

Standard Analysis
The selection of a standard analysis by the manufacturer is t...

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

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

Separating The Work From The Compound
During the pulling of the heat, the pots are dumped upon a ca...

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

Tensile Properties
Strength of a metal is usually expressed in the number of pou...

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

Heat Treatment Of Axles
Parts of this general type should be heat-treated to show the...

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



Instructions For Working High-speed Steel






Category: HIGH-SPEED STEEL

Owing to the wide variations in the composition of high-speed steels
by various makers, it is always advisable to follow the directions
of each when using his brand of steel. In the absence of specific
directions the following general suggestions from several makers
will be found helpful.

The Ludlum Steel Company recommend the following:

CUTTING-OFF.--To cut a piece from an annealed bar, cut off with
a hack saw, milling cutter or circular saw. Cut clear through the
bar; do not nick or break. To cut a piece from an unannealed bar,
cut right off with an abrasive saw; do not nick or break. If of
large cross-section, cut off hot with a chisel by first slowly
and uniformly heating the bar, at the point to be cut, to a good
lemon heat, 1,800 deg.-1,850 deg.F. and cut right off while hot; do not nick
or break. Allow the tool length and bar to cool before reheating
for forging.





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