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Viscount 44 Steel Bar Stock

Viscount 44 is is a fully heat-treated H-13 hot work steel with carefully controlled and evenly dispersed sulphide additives. It is 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 is thus possible to bypass the risk of heat treatment involved in tool building.

Pre-hardening gives Viscount 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, Viscount 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 Viscount 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.

The demands for high strength, increased wear resistance and greater toughness in certain engineering and maintenance applications has resulted in Viscount 44 use in providing outstanding service in countless applications. Its high strength, toughness and exceptional wearing qualities are maintained even when exposed to a temperature as high as 1000F. This makes Viscount 44 highly adaptable to a wide range of engineering and maintenance applications.

The hardness range of Viscount 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 M-3, T-15, 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.

Viscount 44®  Bars

Technical Data

Stock # Thickness Inches Width Inches Length Inches  Price
MBS-8542 1.00" 1.00" 144"  $702.12
MBS-8541 2.00" 2.00" 144"  $4,194.97
MBS-8540 2.50" 2.50" 144"  $5,457.54

 

 

 

 

 

Prices are subject to change due to fluctuating market conditions.

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Kmac Distribution • 3821 Clay Ave. SW • Wyoming, MI 49548

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