Serica™ Tightly controlled low surface waviness SericaTM is a premium hot-dip galvanised surface finish, providing finely balanced surface characteristics that result in a minimized waviness of the metallic coated surface. The guaranteed low waviness after forming of less than 0.40 μm enables an excellent paint result, even when thinner or fewer paint layers are used, and allows a lower total cost of ownership for large, exposed panels like hoods, doors, fenders and bodysides. Serica™ is available on formable and bake-hardenable grades in widths up to 1850mm. Surface aspects Zinc layer Pure Zinc (GI) Coating weight Coating thickness double sided single sided 90-140 g/m2 7-10 μm Oiling The material surface is oiled with preservative oil. Other types of oils are available upon request. The amount of supplied oil ranges from 0.5 g/m2 to 2.0 g/m2. Other oiling levels are available upon request. Roughness Ra (cut-off 2.5mm) Surface quality Serica is the highest possible surface quality for hot-dip galvanised steels, exceeding standard, exposed surface quality (MC). 0.9-1.4 μm Peak count RPc > 75 cm-1 Waviness Wa0,8 after forming* < 0.40 μm * At a biaxial strain of 5% Grades and dimensions Product group Product subgroup Product EN 10346 VDA 239-100 DX54 DX56 DX57 DX57 HyperForm DX54D DX56D DX57D CR3 CR4 CR5 Phosphorus Alloyed Interstitial Free IF180 IF220 IF260 HX180YD HX220YD HX260YD CR180IF CR210IF CR240IF Bake-hardening BH180 BH220 BH260 HX180BD HX220BD HX260BD CR180BH CR220BH CR260BH Steel for forming High-strength steel Grey = development width (mm) 1950 1850 1650 1230 1.00 0.75 0.70 0.62 0.65 0.45 900 thickness (mm) BH180 DX56 Future capability for entire range The available dimensions can differ between grades. Please refer to Tata Steel or your local sales representative for final confirmation on dimensional capability. Our material experts are there to support the deployment of our products in your specific application area. For more information E: [email protected] www.tatasteeleurope.com Tata Steel Automotive PO Box 10000 1970 CA IJmuiden The Netherlands E: [email protected] www.tatasteelautomotive.com CT0515:AM:250:ENG:1014 While care has been taken to ensure that the information contained in this brochure is accurate, neither Tata Steel Europe Limited nor its subsidiaries accept responsibility or liability for errors or information which is found to be misleading. Tata Steel Europe Limited is registered under number 05957565 with registered office at 30 Millbank, London, SW1P 4WY. Copyright 2014 Tata Steel Europe Limited