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L6 Tool Steel Technical Data
-
Carbon:
.65 / .75
-
Manganese:
.25 / .80
-
Silicon:
.50 max.
-
Tungsten:
--
-
Molybdenum:
.50 max.
-
Chromium:
.60 / 1.20
-
Vanadium:
.30 max.
-
Nickel:
1.25 / 2.00
- Forging:
- Start
forging at: 1800-2000°F (982-1093°C)
- Do not
forge below: 1550°F (843°C)
- Normalizing:
- Annealing:
- Temperature:
1400-1450°F (760-788°C)
- Rate of
cooling, max. per hour: 40°F (22°C)
- Typical
annealed hardness, Brinell: 183-255
- Hardening:
- Rate of
heating: Slowly
- Hardening
temperature: 1450-1550°F (788-843°C)
- Time at
temperature, minutes: 10-30
- Quenching
medium: O
- Tempering:
- Tempering
temperature: 350-1000°F (177-538°C)
- Approx.
tempered hardness, Rockwell C: 45-62
- Wear
Resistance: Medium
- Toughness:
Very High
- Resistance
to Softening Effect of Elevated Temperature: Low
- Depth of
Hardening: Medium
- Machinability:
Medium
- Grindability:
High
- Distortion
in Heat Treating: Low
- Safety in
Hardening: Medium
- Resistance
to Decarburization: High
| Specific
Gravity |
0.284 lb/in³ |
| Hardness,
Rockwell C |
62 |
| Modulus
of Elasticity |
30000 ksi |
| Charpy
Impact |
1 ft-lb |
| Machinability |
75 % |
| CTE,
linear 20°C |
6.56 µin/in-°F |
| CTE,
linear 500°C |
7.98 µin/in-°F |
| Thermal
Conductivity |
240 BTU-in/hr-ft²-°F |
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