| e.t.d 150® Cold Finished Alloy Round Bar |
e.t.d. 150 is produced from 4100 series alloy steel and combines
high strength with good machinability. e.t.d. stands for
Elevated Temperature Drawing which is a controlled process
that produces steel with a higher tensile and yield strength
than steel produced from normal cold drawing methods.e.t.d
150 has a150,000 psi (min) tensile strength and a Rockwell
C (Rc)Hardness of 32 (min). This eliminates the need for
heat treating and secondary operations such as cleaning,
straightening and finish grinding.The machinability is excellent, 75 % of 1212 screw stock with an average surface
cutting speed of 125 feet per minute. Warpage and distortion
during machining is minimized andthe mechanical properties
of each bar are uniform from thesurface to the center. It
is suitable for induction hardening and can be roll threaded,
knurled and plated. Welding is difficult,but is possible using
common welding methods.
e.t.d 150 is a registered trademark of the Niagara Lasalle Corporation.
CHEMICAL ANALYSIS
| Carbon |
Manganese |
Phosphorus |
Sulphur |
Silicon |
Chromium |
Molybdenum |
| .40 min |
1.35/1.65 |
.70/1.10 |
040 max |
.15/.35 |
.801/1.20 |
.15/.25 |
MECHANICAL PROPERTIES
| (The following values are average and should be considered as representative of the grade.) |
Tensile
Strength
(PSI) |
Yield
Strength
(PSI) |
Elongation |
Reduction
of area |
Brinell
Hardness |
Rockwell C
Hardness |
| 150,000 min |
130,000 min |
10% (Mean) |
37% (Mean) |
302 min |
32 min |
Size Range is 1/2" dia thru 3 1/2" dia. Stock lengths are 12 ft. long, also available cut to size...
DIAMETER TOLERANCES
| Size range in inches | + 0 | Minus in Inches |
| 1/2" to 1 1/2" incl. | | 0.005" |
| Over 1 1/2" to 1 1/2" incl. | | 0.006" |
| Over 2 1/2" to 3 1/2" incl. | | 0.007" |
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