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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.

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

(The following values are average and should be considered as representative of the grade.)
Elongation Reduction
of area
Rockwell C
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...

Size range in inches + 0Minus 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"

Technical Data     |    Round     |    Square     |    Hexagon     |    Flat     |    C 1045/C 1141 TG&P Rounds     |    12L14     |    4140/42 Alloy     |    Stressproof®     |    e.t.d 150® Alloy Round Bar