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DeCarb
Free Tool Steel Plate
AISI
H-13
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Description
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H-13
is a 5% chromium hot work tool steel designed for applications that
require extreme toughness combined with good red-hardness. H-13
will allow an extra margin of safety in tools subject to heavy hammer
blows, and those containing deep recesses or sharp corners. Although
H-13 was designed as a hot work steel, it has solved many cold work
applications where extra toughness could be gained with some sacrifice
of wear resistance.
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| Typical
Applications |
- Aluminum
Extrusion Dies
- Die
Casting Dies
- Heavy
Duty Compression Tools
- Forming
Punches
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- Hot
Forging Dies
- Shear
Blades
- Plastic
Mold Dies
- Bolt
Dies
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| Chemical
Composition |
- Carbon:
.32 / .45
- Manganese:
.20 / .50
- Silicon:
.80 / 1.20
- Tungsten:
--
- Molybdenum:
1.10 / 1.75
- Chromium:
4.75 / 5.50
- Vanadium:
.80 / 1.20
- Cobalt:
--
- Nickel:
.30
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| Heat
Treatment Data |
- Forging:
(note
a)
-
Start forging at: 1950-2100°F (1066-1149°C)
- Do
not forge below: 1650°F (899°C)
- Normalizing:
(note
b)
- Annealing:
(note
c)
-
Temperature: 1550-1650°F (843-899°C)
- Rate
of cooling, max. per hour: 40°F (22°C)
- Typical
annealed hardness, Brinell: 192-229
- Hardening:
- Rate
of heating: Moderately from preheat
- Preheat
Temperature: 1500°F (816°C)
- Hardening
temperature: 1825-1900°F (996-1038°C)
- Time
at temperature, minutes: 15-40 (note
j)
- Quenching
medium: A (note
i)
- Tempering:
- Tempering
temperature: 1000-1200°F (note
k)
(538-649°C)
- Approx.
tempered hardness, Rockwell C: 38-53
- Wear
Resistance: Medium
- Toughness:
Very
high
- Resistance
to Softening Effect of Elevated Temperature:
High
- Depth
of Hardening: Deep
- Machinability:
Medium
to high
- Grindability:
Medium to high
- Distortion
in Heat Treating: Very low
- Safety
in Hardening: Highest
- Resistance
to Decarburization: Medium to high
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