What is an Alloy?

To be classified as an alloy, a range or minimum amount of alloying elements such as nickel, molybdenum, chromium, vanadium, etc. is specified or elements are added to obtain an alloying effect.
Alloy steel bars and plates are generally given some type of appropriate thermal processing such as annealing or quench and tempering. The addition of alloying elements increases the alloy bar’s or plate’s hardenability (note: alloying elements do not make the metal harder just by their existence in metal, but rather increase the depth to which the alloy bar or alloy plate can be hardened by appropriate heat treatment).
The proper alloy can also provide improved fatigue strength in addition to increased wear and toughness. Alloy metals have the potential to achieve superior combinations of properties not attainable with other metals.

About Alloy Steels

Alloy bars are typically Cold Drawn or Hot Rolled, but we also offer saw cut, decarb-free bars oversized to finish.  Alloy steels are annealed, preheat-treated or quenched and tempered. Heat treating attains required mechanical properties, typically at the expense of machinability.  Heat treated bars are often stress-relieved, and an alloy has the ability to increase hardenability through heat treating. This makes it possible to obtain desired mechanical properties in larger sections.

We offer these Alloy Steels

4140 Annealed, Preheat-treated (Bar, Plate)
4142 Preheat-treated (Bar, Plate, TG&P)
4150*
4340*
52100*
6150*
8620 (Round Bar)
ETD 150* (Elevated Temperature Drawing process)
*Grades available upon request