S-5
Chemical
Analysis: |
|
|
Tempering Temp.
º(F) |
Hardness Rc |
|
Carbon
|
.50/.65
|
|
As-quenched |
65.0 |
| Manganese |
.60/1.00 |
|
300 |
63.0 |
| Phosphorus |
.030
Max. |
|
400 |
61.0 |
| Sulfur |
.030
Max. |
|
500 |
60.5 |
| Silicon |
.175/2.25 |
|
600 |
59.0 |
| Chromium |
.035
Max. |
|
700 |
57.5 |
| Vanadium |
.035
Max. |
|
800 |
53.0 |
| Tungsten |
------- |
|
900 |
51.0 |
| Molybdenum |
------- |
|
1000 |
49.0 |
| Cobalt |
------- |
|
1100 |
47.0 |
|
|
|
1200 |
40.5 |
|
|
|
1300 |
33.5 |
Uses:
Shear blades, Veneer knife, punches, dies, pneumatic
tools, chisels, beading tools, caulking tools.
Forging/Rolling:
Heat slowly to 1850° F
- 1950° F and hold for uniformity. Do not forge or
roll below 1650° F, cool slowly from the forging or rolling
temperature. Do not normalize.
Annealing:
Heat slowly to 1400° F,
and hold for 1 hour per inch of thickness. Cool slowly to 1000°
F; air cool to room temperature. Expect Brinell hardness
229 max.
Hardening:
Heat to 1600° F and
hold for uniformity, not to exceed 1/2 hour per inch of thickness.
Quench into 150° F oil.
Tempering:
Temper immediately after quenching, before part has
cooled to below 150° F. Parts should be held a minimum of
2 hours per inch of greatest thickness. A single temper is sufficient.
Tempering temperatures should be between 400°
F - 650° F. The above tempering table may be used
as a guide. However, since 1/2" dia. specimens were used
for this test, it may be found that heavier sections are several points
lower.
© Copyright 1999 Diamond Metals Corporation.
All Rights Reserved.
|
