niag lasalle

e.t.d.® 150®

A versatile specialty steel product that offers superior strength and peak performance

When parts require higher levels of strength, e.t.d.® 150®, a registered trademark of Niagara Lasalle, is the smart choice. Through our proprietary "elevated temperature drawing" process, Niagara LaSalle has created a bar that eliminates heat treating and secondary operations. e.t.d.® 150® bars can be roll threaded, knurled and plated and are also suitable for induction hardening.

Produced from AISI medium carbon 4100 series alloy steel, heats for this product are controlled to contain nitrogen in quantities normally associated with steel that's produced by the electric furnace process. A single additive is added to improve overall machinability and it is electro-magnetically tested using induced eddy current.

Choose e.t.d.® 150® for your parts and eliminate:

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  • Heat treating
  • Straightening
  • Finish grinding
  • Cleaning
  • Inspections

Our e.t.d.® 150® products provide manufacturers with a machinable material that has in-the-bar strength so your parts can provide real reliability and peak performance.

You can rely on Niagara LaSalle for all of your steel bar needs. To learn more about e.t.d.® 150® or any of our specialty products, please contact us.

Carbon 0.40 Min.
Manganese 0.70/1.10
Silicon 0.15/0.35
Chromium 0.80/1.20
Molybdenum 0.15/0.25
Mechanical Properties
Tensile Strength **150,000 psi
Yield Strength (.2% offset) 130,000 psi
Elongation 5% Min
Reduction of Area 20% Min
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 bainite/pearlite. Fine grain size 5-8.
SIZE RANGE 7/16" rounds through 3-1/2"
(Tolerances, in decimals of an inch, provide for undersize variation only.)
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'
  1. Standard "as drawn" finish is smooth, accurate and dark in color.
  2. 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.