Feedscrew Materials


Built to Equal or Surpass O.E.M. Specifications

Material Options:

17-4 PH Stainless
An excellent combination of strength and corrosion resistance. Ideal for smaller screws where strength is critical.

4140 Alloy Steel
A good alloy steel for toughness, good torsional strength and good fatigue strength.

CPM 9V Tool Steel
A new generation tool steel with a high percentage of vanadium carbide developed for high wear (abrasive) applications.

CPM 420V Tool Steel
Crucible's CPM 420V is a new stainless tool steel best suited for corrosion-
resistance. CPM 420V is a higher performance upgrade for CPM 440V. Corrosion resistance is significantly better than CPM 440V. Wear resistance is about 25-50% better than CPM 440V, due to the higher vanadium carbide content of CPM 420V (9% vanadium vs. 5.5-6% in CPM 440V).

CPM S90V Tool Steel
Crucible's CPM S90V Tool Steel is a martensitic stainless steel to which vanadium and carbon have been added for exceptionally good wear resistance. CPM S90V offers substantial improvements in wear resistance over 440C and D2, and other high chromium steels, with corrosion resistance equal to or better than 440C. CPM S90Vs high vanadium content favors the formation of hard vanadium carbides instead of chromium carbides for wear resistance, leaving more free chromium available to provide corrosion resistance.

Crucible's CRU-WEAR is an excellent combination of high wear resistance, compressive strength and exceptional toughness. Ideal for applications that require higher wear resistance than D2.

D2 Tool Steel
A high carbon/high chrome tool steel with good wear resistance, but low on torque strength.

H13 Tool Steel
A good high strength pre-hardened tool steel which is machined, thru-hardened, and ground dimensionally, then nitride hardened for 72 hours for better wear resistance. H13 is tough and can handle pressure and torque.

A corrosive resistant steel.

Lescowear Tool Steel
A versatile medum chromium air-hardening tool steel.

Nitralloy 135m
Material is machined, then nitrided. This material has a shorter life, and should only be used when low cost is the only consideration.

Hard Facing Options

Stellite #12, and Colmonoy #56, 83 and 86

Surface Treatment Options

Nitriding, Armoloy, Full Carbide Encapsulation, Flight Following Carbide Encapsulation, Titanium Nitriding (TiN), Titanium Aluminum Nitriding (TiAN), Chromium Nitriding, and Industrial Hard Chrome Plating

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