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Instructions For Working High-speed Steel
Owing to the wide variations in the composition of high-speed...

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

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

Chrome-nickel Steel
Forging heat of chrome-nickel steel depends very largely on ...

The Forging Of Steel
So much depends upon the forging of steel that this operation...

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

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

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

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

Heat-treating Department
The heat-treating department occupies an L-shaped building. ...

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

Composition Of Transmission-gear Steel
If the nickel content of this steel is eliminated, and the pe...

Lathe And Planer Tools
FORGING.--Gently warm the steel to remove any chill, is parti...

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

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

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

Carbon In Tool Steel
Carbon tool steel, or tool steel as it is commonly called, us...

Drop Forging Dies
The kind of steel used in the die of course influences the he...

Application Of Liberty Engine Materials To The Automotive Industry
The success of the Liberty engine program was an engineer...

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



Properties Of Alloy Steels






Category: ALLOYS AND THEIR EFFECT UPON STEEL

The following table shows the percentages of carbon, manganese,
nickel, chromium and vanadium in typical steel alloys for engineering
purposes. It also gives the elastic limit, tensile strength, elongation
and reduction of area of the various alloys, all being given the same
heat treatment with a drawing temperature of 1,100 deg.F. (600 deg.C.). The
specimens were one inch rounds machined after heat treatment.

Tungsten is not shown in the table because it is seldom used in
engineering construction steels and then usually in combination
with chromium. Tungsten is used principally for the magnets of
magnetos, to some extent in the manufacture of hacksaws, and for
special tool steels.

TABLE I.--PROPERTIES OF ALLOY STEELS
------------------------------------------------------------------------------
Manganese,/ Chromium,/ ElasticTensile ElongationReduction
Carbon, per /Nickel, per /Vanadium,limit, Strength,in 2 in., of area,
per cent per cent per cent lb. perlb. per per cent per cent
cent cent sq. in.sq. in.
----------------------------------------------------------------------
0.27 0.55 49,000 80,000 30 65
0.27 0.47 0.26 66,000 98,000 25 52
0.36 0.42 58,000 90,000 27 60
0.34 0.87 0.13 82,500 103,000 22 57
0.45 0.50 65,000 96,000 22 52
0.43 0.60 0.32 96,000 122,000 21 52
0.47 0.90 0.15 102,000 127,500 23 58
0.30 0.60 3.40 75,000 105,000 25 67
0.33 0.63 3.60 0.25 118,000 142,000 17 57
0.30 0.49 3.60 1.70 119,000 149,500 21 60
0.25 0.47 3.47 1.60 0.15 139,000 170,000 18 53
0.25 0.50 2.00 1.00 102,000 124,000 25 70
0.38 0.30 2.08 1.16 120,000 134,000 20 57
0.42 0.22 2.14 1.27 0.26 145,000 161,500 16 53
0.36 0.61 1.46 0.64 117,600 132,500 16 58
0.36 0.50 1.30 0.75 0.16 140,000 157,500 17 54
0.30 0.50 0.80 90,000 105,000 20 50
0.23 0.58 0.82 0.17 106,000 124,000 21 66
0.26 0.48 0.92 0.20 112,000 137,000 20 61
0.35 0.64 1.03 0.22 132,500 149,500 16 54
0.50 0.92 1.02 0.20 170,000 186,000 15 45
------------------------------------------------------------------------------





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