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Another high strength material made by Niagara LaSalle's patented "e.t.d."® (elevated temperature drawing) process. Eliminates heat treating and secondary operations such as straightening, finish grinding, cleaning, and inspections. "e.t.d." 150® can be roll threaded, knurled and plated. Suitable for induction hardening. "e.t.d." 150® is also electro-magnetically tested using induced eddy currents.
| Carbon |
0.40 Min.
|
| Manganese |
0.70/1.10 |
| Silicon |
0.15/0.35 |
| Chromium |
0.80/1.20 |
| Molybdenum |
0.15/0.25 |
|
| Tensile Strength |
**150,000
psi |
| Yield
Strength (.2% offset) |
130,000 psi |
| Elongation |
10% (Mean) |
| Reduction of Area |
37% (Mean) |
| Machinability |
75% of 1212 |
| Rockwell C Hardness |
** 32 Min. |
| Brinell
Hardness |
** 302 Min. |
* "e.t.d."
150® contains additives for improving machinability. These may be
Tellurium, Selenium, Sulphur (.06 max), or others, separately or in
combination.
**In the event of disagreement between hardness and tensile
strength, the tensile strength shall govern. |
| MICRO-STRUCTURE |
Ferritic fine grain
and fine pearlite. Fine grain size 5-8. |
| SIZE RANGE |
7/16" rounds through
3-1/2" |
TOLERANCES
(Tolerances, in decimals of an inch,
provide for undersize variation only.) |
| Rounds |
|
| 7/16" to 1-1/2" incl. |
0.005" |
| Over 1-1/2" to 2-1/2" incl.
|
0.006" |
| Over 2-1/2" to 3-1/2" incl.
|
0.007" |
|
| LENGTH |
11'/13' |
| FINISH |
- Standard "as drawn" finish is
smooth, accurate and dark in color.
- Ground and Polished finish provides
close tolerances, high accuracies and bright surface. Rounds only.
|
| EXAMPLE OF USE |
Parts you are now heat
treating from Rc 30 to Rc 36. |
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