• Goel Steel Company

Hot Work Tool Steels

Goel Steel Company, an ISO 9001: 2008 certified company, offers a range of Hot Work Tool Steels. These are used for forging, forming, shearing, pressure die casting and punching, which maintain their wear resistance, mechanical properties, etc., at these elevated temperatures. Alloying elements like chromium, cobalt, molybdenum, tungsten, vanadium and nickel help in achieving properties required for hot work tool steels. One of the demanding uses of hot work steel is in the area of pressure die casting, where EFS (extra fine structure) and ESR (electro slag refining quality steels are used extensively.

The following properties of the tool steels are of important consideration:

• Ductility
• High hot yield strength
• Lower thermal expansion coefficient
• High Charpy impact value
• High thermal conductivity
• Good weldability

The main problems encountered in a PDS die are heat checks, erosion and crack. Right selection of tool steels can help minimise these problems and optimize die life. Another important use of hot work tool steels is in the area of forgings, done at elevated temperatures by use of vertical presses and hammers. Press forging the pressure is applied fast unlike hammer forging where the drop of hammer die is sudden and very fast. In case of latter high toughness material is required to absorb this impact load while in press forgings high strength hot work tool steels are recommended. Normally forging hammer die material is supplied in pre-hardened condition of 360-410 BHN. Extrusion is another important application of hot work tool steels. Normally AISI H11 and H13 are most popular extrusion die materials. Goel Steel Company was established in the year 1973 with sole aim of serving tool rooms with quality tool steel at reasonable price and the company has achieved a fair degree of success with numerous satisfied customers.
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