SPECIAL STEELS ANY STEEL. ANY TIME ESR PREMIUM FOR HIGHLY-STRESSED MOULDS, CAVITIES AND DIES ENGLISCH

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1 SPECIAL STEELS ANY STEEL. ANY TIME. ENGLISCH ESR PREMIUM FOR HIGHLY-STRESSED MOULDS, CAVITIES AND DIES

2 STEEL OF THE HIGHEST QUALITY FOR HIGHEST DEMANDS FROM STEELMAKING PROCESS TO HOT WORKING The standard properties of the hot-working steel ESR Premium are set by combining the melting process with a secondary refi ning treatment (vacuum degassing, argon fl ushing). Casting of the ingots takes place by bottom pouring making sure no oxides, which are formed at the head of the ingot, can get into the melt. The solidifi ed ingot is remelted and the droplets are cleaned through a slag. This process is known as electroslag remelting (ESR). The ESR-ingot is formed to the required dimensions by a targeted thermo-mechanical treatment. The result of this special controlled heat treatment combined with a high degree of deformation is a homogeneous and extra fi ne microstructure (EFS). All process steps form the basis for the outstanding properties of ESR Premium in practical use. APPLICATIONS Due to the excellent toughness and polishability, ESR Premium can be used for both hot-working applications and for polymer pro cessing. The hardness of the material can be increased up to over 50 HRC, maintaining its ductility. This opens up areas of application for GRP-moulding tools. These tools require good wear resistance and good toughness. If a higher wear resistance is required, ESR Premium can also be surface hardened, nitrided and PVD-coated. Additional advantages are the good machinability and hardenability of ESR Premium. Compared to standard materials users do not need special tools or machining parameters. The heat treatment of ESR Premium is similar to the standard material

3 BEST PROPERTIES A WIDE RANGE OF PRODUCTS PROPERTIES OF ESR PREMIUM Excellent material properties obtained by a remelting process and targeted thermo-mechanical treatment. STANDARD STOCK SIZES Stock material of ESR Premium is available in different dimensions. In order to meet customers requirements, over 100 band- / block saws and 10 milling centres are available to pre machine the material. Chemical analysis According to DIN EN ISO 4957:2018 with S 0,005 %; P 0,020 % Degree of purity K1 10 according to DIN Toughness AV [SBP] > 250 J according to SEP 1314 Degree of segregation Premium quality according to SEP 1614 Ultrasonic test QC 4 according to DIN EN Polishability Texturing properties very good very good Available dimensions: Width: from 700 mm to mm Thickness: from 100 mm to 604 mm Length: from mm to mm Border dimensions for milling operations (rough dimensions): 2-sides: from 10 x 400 x 800 mm to x 800 x 300 mm 4-sides: from 10 x 10 x 800 mm to x 300 x 300 mm 6-sides: from 20 x 20 x 10 mm to 800 x 800 x 240 mm 4 5

4 HARDENING AND TEMPERING IF IT MAY BE MORE MATERIAL AND HEAT TREATMENT FROM ONE PROVIDER Due to the alloying composition, our hot-working steel ESR Premium shows excellent hardenability. The carbon content ensures a good hardness increase. Chrome and molybdenum allow for large cross sections to be through hardened. During the tempering process vanadium and molybdenum form fi nely dispersed carbides. This leads to a secondary hardening of the material. INCREASED WORKING LIFE THROUGH SURFACE TECHNOLOGY Due to a combination of high quality hot-working steel with the best possible heat treatment, using plasma nitriding or hybrid coating on your tool, helps to reach the maximum performance. Whether you need longer toollife or better demouldability, we offer the appropriate solution for your application. Our Coating & Hardening division has decade-long experience with the vacuum heat treatment of steel. At our facility, 9 vacuum hardening furnaces and 14 protective gas tempering furnaces are available. With this equipment the ideal heat treatment for your moulds, cavities and dies can be performed. Your advantage: Material and heat treatment from one provider. Please feel free to contact us for additional information on heat treatment. PVD-Beschichtung coating Nitrided Nitrierzone Grundwerkstoff Base material Finish your material with innovative coating through PVD hybrid-technology, insuring the h ighest wear resistance. 6 7

5 SPECIAL STEELS COATING & HARDENING STEEL FOUNDRY CASTING PRODUCTS Our Plants Plant Ründeroth Hammerweg Engelskirchen Plant Weiershagen Weiershagener Str Wiehl Plant Dieringhausen Stahlstr Gummersbach Plant Herford Engerstr Herford Plant Gummersbach Kaiserstr Gummersbach we-2/2019 Dörrenberg Edelstahl GmbH P. O. Box Engelskirchen Phone: Fax: specialsteels@doerrenberg.de