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

The Effect Of Tempering On Water-quenched Gages
The following information has been supplied by Automatic and ...

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

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

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

Gas Consumption For Carburizing
Although the advantages offered by the gas-fired furnace for ...

Highly Stressed Parts
The highly stressed parts on the Liberty engine consisted of ...

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

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

Hints For Tool Steel Users
Do not hesitate to ask for information from the maker as to t...

Sulphur
SULPHUR is another element (symbol S) which is always found i...

Heat Treatment Of Punches And Dies Shears Taps Etc
HEATING.--The degree to which tools of the above classes shou...

Quality And Structure
The quality of high-speed steel is dependent to a very great ...

Annealing Work
With the exception of several of the higher types of alloy s...

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

Brown Automatic Signaling Pyrometer
In large heat-treating plants it has been customary to mainta...

An Automatic Temperature Control Pyrometer
Automatic temperature control instruments are similar to the ...

Cyanide Bath For Tool Steels
All high-carbon tool steels are heated in a cyanide bath. Wi...

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...



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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Previous: Sulphur



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