*Always consult your Heat Treater*
*Information Provided is General*

Viscount 44 (VIC-44), available upon request, is a fully heat-treated H-13 hot work steel with carefully controlled and evenly dispersed sulphide additives. It’s the same analysis type as H-13, but the free-machining sulphides improve the machine ability to the point where die work at a hardness of Rockwell C 42-46 is practical. It’s thus possible to bypass the risk of heat treatment involved in tool building. Pre-hardening gives VIC-44 a tremendous advantage when used for hot work dies because of the constant danger of size change or distortion during heat treatment. Also, costly finishing operations after heat treatment are eliminated.

This versatile H-13 hot work steel is an excellent and practical choice for die casting dies. It can be used for cores, cavities, perishable details, ejector core pins – any number of machined parts. Using pre-hardened, VIC-44 for extrusion tools makes it possible to produce dies, backers, bolsters, dummy blocks, etc. in a very few hours, so that extremely short delivery schedules can be met. In addition, the use of pre-hardened VIC-44 for extrusion dies insures clean metal at the bearing surfaces free from any possible decarburization, carburization, scale, sub-scale or other deleterious conditions sometimes encountered when finished dies are heat treated.

Other tooling applications include die inserts, shear blades, upsetter dies for brass and stainless fitting, piercing punches, plastic mold cavities (where polishability is not important) and many other component items.

The demands for high strength, increased wear resistance and greater toughness in certain engineering and maintenance applications has resulted in VIC-44’s use in providing outstanding service in countless applications, such as spindles, arbors, shafts, axles, bolts, brake dies, forming rolls and other machine tool parts. Its high strength, toughness and exceptional wearing qualities are maintained even when exposed to a temperature as high as 1000°F. This makes VIC-44 highly adaptable to a wide range of engineering and maintenance applications.

The hardness range of VIC-44, Rockwell C 42-46, makes its machining considerably more difficult than the machining of annealed tool steels. In most cases, for example, it will be necessary to decrease metal removal rates by about 30%, preferably by decreasing the cutting speed. Carbide tools are most popular but high-speed steels are widely used especially for drills, die sinking cutters, and taps. If high-speed steels are to be used, the super high speeds, such as M3-2, T15, or M-42 are recommended although M-2 or M-1 are practical for short runs particularly if a nitride case can be applied. As with all heavy duty machining, machine tool rigidity and uniform positive feed rates are essential. Due to its numerous and varied applications, VIC-44 is often referred to as “The Grade of 1000 Uses”.

Hardening happens between 1725°F.

VIC-44 is an oversized material, available upon request.


  •  Up to 1″ + .007 up to .018

  • 1″up to 6″ + .015 up to .0406

  • 6″ and up + .0625 up to .250

 Vic-44 Material In Stock


 Round Dimensions

  • 1/2″ up to 3″

  • Non standard sizes quoted upon request.

 VIC-44 Typical Analysis













 · Slight variations from typical analysis shown may occur in order to  maintain the desired graphitizing potential.