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Steel Making

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

Fatigue Tests
It has been known for fifty years that a beam or rod would fa...

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

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

Hardening
The forgings can be hardened by cooling in still air or quen...

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

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

Introduction Of Carbon
The matter to which these notes are primarily directed is the...

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

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

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

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

High-chromium Or Rust-proof Steel
High-chromium, or what is called stainless steel containing f...

Temperatures To Use
As soon as the temperature of the steel reaches 100 deg.C. (...

Phosphorus
PHOSPHORUS is an element (symbol P) which enters the metal fr...

Placing Of Pyrometers
When installing a pyrometer, care should be taken that it re...

Shrinking And Enlarging Work
Steel can be shrunk or enlarged by proper heating and cooling...

Heat Treatment Of Gear Blanks
This section is based on a paper read before the American Gea...

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

Hardening High-speed Steels
We will now take up the matter of hardening high-speed steels...



Alloying Elements






Category: COMPOSITION AND PROPERTIES OF STEEL

Commercial steels of even the simplest types
are therefore primarily alloys of iron and carbon. Impurities and
their remedies are always present: sulphur, phosphorus, silicon
and manganese--to say nothing of oxygen, nitrogen and carbon oxide
gases, about which we know very little. It has been found that other
metals, if added to well-made steel, produce definite improvements
in certain directions, and these alloy steels have found much
use in the last ten years. Alloy steels, in addition to the
above-mentioned elements, may commonly contain one or more of the
following, in varying amounts: Nickel (Ni), Chromium (Cr), Vanadium
(Va), Tungsten (W), Molybdenum (Mo). These steels will be discussed
at more length in Chapters III and IV.





Next: Properties Of Steel

Previous: Manganese



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