Injection and Extrusion Barrel Materials

Tool Steel Barrels

For Injection, Extrusion, Thermoset and Blow Molding Applications                                                            

MATERIAL OPTIONS:

D2 Tool Steel - Our most popular D2 Tool Steel sleeve has been very successful in most molding applications including moderate concentrations of glass or mineral filled materials. One of the most wear resistant of the conventional tool steels, it is alloyed with 12% chromium and 1% vanadium which form very hard carbides. This high percentage of chromium gives it mild corrosion resisting properties in the hardened condition. D2 Tool Steel is thru-hardened to maximize its wear life.

CPM^® 10V™ Tool Steel - Crucible's CPM^® 10V Tool Steel has proven itself for most difficult molding applications such as continuous use of glass, mineral, ceramic, calcium, and metal filled plastic materials. This extremely wear resistant tool steel is manufactured by the particle metallurgy process which makes it possible to alloy a high percentage (9.75%) of vanadium, which forms the hardest of the tool steel carbides.

CPM® 15V™ Tool Steel - Crucible's CPM® 15V™ Tool Steel is in the family of high vanadium, highly abrasion resistant CPM® tool steels. It contains more hard vanadium carbides (14.5%) in its microstructure than CPM® 10V, to provide even higher wear resistance. CPM® 15V™ is intended for applications requiring exceptional wear resistance and where CPM® 10V is successful, but even longer life is desired.

CPM® 420V™ Stainless Steel - Crucible's CPM® 420V is a new stainless steel tool steel best suited for corrosion resistant applications. CPM® 420V is a higher performance upgrade for CPM® 440V. Corrosion resistance is significantly better than CPM® 440V, and wear resistance is about 25-50% better, 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 CPM S90V 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 S90V’s 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.

Bimetallic Barrels

For Injection, Extrusion, Thermoset and Blow Molding Applications

MATERIAL OPTIONS:

Super Wear Tungsten Carbide Bimetallic Inlays- Our super wear-resistant bimetallic liner is a high tungsten-carbide content alloy with a matrix of a chromium-boron-nickel alloy. Tungsten carbide provides the primary wear resistance with the high chromium boride-content matrix alloy providing additional wear and corrosion resistance. This has a macro hardness of Rockwell C62-68; however, over 80% volume of this alloy is occupied by tungsten carbides and chromium borides which show a micro hardness of over DPH 4000 (over Rc 70). It is the highest wear- and corrosion-resistant alloy available for bimetallic barrels. This is recommended for use where extremely abrasive and moderately corrosive conditions are encountered, or in custom shops where a machine is used to process several different kinds of material.

Standard Wear Nickel Boron Bimetallic - Our standard wear resistant bimetallic liner is a nickel-boron based iron with a high hardness, martensitic structure in cementite matrix. It has excellent abrasion resistance and a low friction coefficient (0.07) for prevention of screw galling. It provides a service life of at least four times that of nitrided barrels, and a hardness range of Rockwell C58-65 (70°F). Recommended for use when abrasive materials are being processed.

Corrosion Resistant Bimetallic - Our corrosion resistant bimetallic liner is a cobalt-nickel based alloy with high chromium and boron content for excellent corrosion resistance against hydrochloric and other acids. It has a dual-phase microstructure with complex borides that provide excellent wear resistance: over 10 times the service life of nitrided barrels in severely corrosive atmospheres. It has a typical hardness range of Rockwell C50-55. Recommended for use where severe corrosive conditions are encountered.