Tool Steel Products SF-2000 LQ40 and SF-2050
New Pre-Hardened Special Steel to Produce Flawless Surfaces
North American special steel producer Finkl Steel, a subsidiary of the Schmolz + Bickenbach Group introduces the new tool steel products SF-2000 LQ40 and SF-2050 which are characterized by excellent polishability and as-cast uniform hardness.
Plastic products for the automotive industry, such as head lamps and windshields, must be as clear as glass and true to form to fulfill their function reliably. A permanently flawless mold frame made of steel is required to produce these products. With their newest product developments SF-2000 LQ40 and SF-2050 Finkl Steel offers an optimal solution. These new grades of tool steel are characterized by an excellent microstructure and homogeneity in their mechanical properties. The extremely low sulphur content and selected micro-alloys provide excellent machinability and polishability. The hardness as-cast is already 40 HRC. Additional heat treatment is unnecessary, which contributes to the material's processability and form stability – important requirements for economic production.
SF-2000 LQ40 is produced using an electro-slag remelting process (E.S.R.) that improves the grade. This makes it suitable for large-size applications requiring a flawless surface quality, including molds for lenses as well as other applications requiring highly polished surfaces. Both materials can also be used for long-run molds as well as injection molds for abrasive and fiber-reinforced plastics. The steel comes in blocks up to 2,130 mm x 1,245 mm. Users profit from comparable short lead times, longer tool life and, ultimately, from more competitive manufacture of sophisticated mold parts.
Finkl Steel A. Finkl & Sons Co.
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