While working on a sermon the pastor heard a knock at his office door. "Come in," he invited. A sad-looking man in threadbare clothes came in, pulling a large pig on a rope. "Can I talk to you for a minute?" asked the ma... Read more of Kids On Marriage at Free Jokes.caInformational Site Network Informational
Privacy
   Home - Steel Making - Categories - Manufacturing and the Economy of Machinery

Steel Making

Silicon
SILICON is a very widespread element (symbol Si), being an es...

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

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

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

Manganese
MANGANESE is a metal much like iron. Its chemical symbol is M...

Open Hearth Process
The open hearth furnace consists of a big brick room with a l...

The Modern Hardening Room
A hardening room of today means a very different place from ...

Nickel
Nickel may be considered as the toughest among the non-rare a...

Pyrometry And Pyrometers
A knowledge of the fundamental principles of pyrometry, or th...

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

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

Machineability
Reheating for machine ability was done at 100 deg. less than ...

Effect Of A Small Amount Of Copper In Medium-carbon Steel
This shows the result of tests by C. R. Hayward and A. B. Joh...

Correction By Zero Adjustment
Many pyrometers are supplied with a zero adjuster, by means ...

Effect Of Different Carburizing Material
[Illustrations: FIGS. 33 to 37.] Each of these different p...

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

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

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

Correction For Cold-junction Errors
The voltage generated by a thermo-couple of an electric pyrom...

Judging The Heat Of Steel
While the use of a pyrometer is of course the only way to hav...



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






Category: ALLOYS AND THEIR EFFECT UPON STEEL

This shows the result of tests by C. R. Hayward and A. B. Johnston
on two types of steel: one containing 0.30 per cent carbon, 0.012
per cent phosphorus, and 0.860 per cent copper, and the other 0.365
per cent carbon, 0.053 per cent phosphorus, and 0.030 per cent
copper. The accompanying chart in Fig. 13 shows that high-copper
steel has decided superiority in tensile strength, yield point and
ultimate strength, while the ductility is practically the same.
Hardness tests by both methods show high-copper steel to be harder
than low-copper, and the Charpy shock tests show high-copper steel
also superior to low-copper. The tests confirm those made by Stead,
showing that the behavior of copper steel resembles that of nickel
steel. The high-copper steels show finer grain than the low-copper.
The quenched and drawn specimens of high-copper steel were found
to be slightly more martensitic.





Next: High-chromium Or Rust-proof Steel

Previous: Non-shrinking Oil-hardening Steels



Add to del.icio.us Add to Reddit Add to Digg Add to Del.icio.us Add to Google Add to Twitter Add to Stumble Upon
Add to Informational Site Network
Report
Privacy
SHAREADD TO EBOOK


Viewed 5633