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Gateway 4150 PH |
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| Prehardened Alloy |
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| Tool Steel |
Gateway 4150 PH |
is a
prehardened, high -quality alloy steel intended for all |
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mechanical uses where improved machinability, uniform hardness
and excellent flatness |
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are required, Product hardness range is 262-321 Brinell (28-32
HRC). |
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| Typical Chemistry |
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Carbon |
0.50 |
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Silicon |
0.25 |
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Manganese |
1.00 |
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Chromium |
0.90 |
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Phosphorous |
.035 max |
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Vanadium |
0.01 |
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Sulfur |
.040 max |
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Molybdenum |
0.15 |
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| Applications |
Suitable
for use in many applications including shafts, machinery spindles, gears,
and machinery parts. |
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Heat treating information is provided below for
material requested in the annealed condition. |
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| Stress Relief |
Heat slowly and uniformly to 900/1000 F and soak for two hours. Air
cool to furnace cool to room temperature. |
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| Annealing |
It is recommended that Gateway 4150 PH be annealed prior to
rehardening. Heat slowly and uniformly to 1550 F for two hours. |
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Cool slowly (50 F per
hour max) to 1200 F, and air cool. |
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| Heat Treating |
Gateway 4150 PH may be heat treated to higher levels of hardness
for higher strength. |
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Preheat to 1300/1350 F and hold for one hour. Heat to 1550/1575
F and soak one half hour when material
is up to temperature. |
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Oil quench below 200 F and temper immediately. |
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| Tempering |
Temper
one hour per inch of section thickness with a minimum of two hours to desired
hardness. |
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Representative hardness levels after tempering are
tabulated below. |
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Oil Quenched from 1600 F * Tempered 4 hours |
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(Section Size - 1" dia) |
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Tempering Temperature (F) |
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Hardness (HRC) |
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900 |
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36 |
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1000 |
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34 |
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1100 |
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29 |
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1200 |
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26 |
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1300 |
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23 |
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| Note: |
Variations
in section size, heating rate, soak time, quench rate and tempering will
cause deviations from the above values. |
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| Gateway Metals should be consulted
for specific applications. |
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