TYPICAL
ANALYSIS:
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C.
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Si.
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Cr.
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Mo
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V.
|
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0.38%
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1.00%
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5.00%
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1.30%
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1.00%
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BS4659
BH13 combines a very good red-hardness with toughness
and covers a wide variety of applications. It may be water cooled
in service and gives high temperature strength and wear resistance.
Forging:
Heat slowly and uniformly to 700°C. Forge within a range of
1050/1150°C reheating if necessary, since forging must not be
carried out below 850°C. Cool slowly, preferably in a furnace
since this is an air hardening steel.
Annealing:
Heat uniformly to 850/880°C, soak thoroughly and furnace cool.
Stress
Relieving: After rough machining the tools must be
stress relieved, heat to 650/700°C and hold for 2 hours then
furnace cool.
Hardening:
Pre heat to 750/850°C and soak thoroughly, then increase rapidly
to the hardening temperature of 1000/1020° in a controlled atmosphere
or neutral salt bath. Cool in air. This steel is suitable for
vacuum hardening.
Tempering:
Heat uniformly and thoroughly at the selected tempering temperatures,
usually to a tempering range of 550/650°C depending on the hardness
requirement. Hold for at least two hours per inch of total thickness
and cool in air. Double tempering is strongly recommended. For
your guidance refer to our colour
charts for forging, hardening and tempering.
For price and availability
contact our friendly and helpful staff.
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