Metal Component Design ALUZINC

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aluzinc 17/9/08 10:23 Page 18ALUZINC ®is the versatilemetallicallycoated steel.Aluzinc’s metallic coating is a true alloy of aluminium and zinc and isadhered to the mild steel substrate by the hot dip galvanising process.Aluzinc components are finished components withreal “fit and forget” characteristics.Aluzinc adds sustainability i.e. a life between 5 & 20 times that of zincgalvanised steel. Aluzinc is often used in place of stainless steel.Aluzinc has an attractive surface of small spangles that stay brightthroughout its life and comes in a variety of steel substrates:STRUCTURAL GRADES /roofing and claddingDEEP DRAWING /gas metersREPETITIVE FORMING /ductingHIGH STRENGTH /silo legsAs with most corrosion resistant metals Aluzinc relies on a dry periodin the climatic cycle to replenish its oxide layer. There may betherefore some applications for which it is less effective, i.e. constantcorrosion cells, contact with more noble metals, strong basicatmospheres. Please check with SSAB Swedish Steel Ltd for advice.MAKE IT - FINISH IT - IN ALUZINC ®18
aluzinc 17/9/08 10:23 Page 19TechnicallyALUZINC ®Data sheet.BASE MATERIALCOATINGCOATING ANALYSISCOATING THICKNESSMild steel sheet to BS EN10326/10327-2004Hot dipped alloy coating (galvanising process)55% Aluminium. 43.4% Zinc. 1.6% Silicon (by weight)150 gm coating = 20 microns (equivalent to 275 gms coating of zinc galvanised)185 gm coating = 25 microns (equivalent to 350 gms coating of zinc galvanised)FINISHQUALITY STANDARDFIRE RATINGAGREMENTCERTIFICATEBright aluminium type, with predictably consistent small spangles. Stays brightthroughout life. Special anti-fingerprint coating available i.e. Aluzinc + Easyfilm ®Manufactured under ISO 9001 Quality Assurance Standard Certificate No.FQA0936907.Distributed under BS EN ISO 9002 Quality Assurance Standard. Certificate No.890916.British Board of Agrement Certificate No. 07/4493 for 20 year outdoor lifeNon-combustible BS476: Part 4; Class 0BBA Agrement certificate number 07/4493.CORROSIONRESISTANCEHEAT RESISTANCEEMISSIVITYUNSUITABLECOMBINATIONSSALT WATERCORROSIONLIFE EXPECTANCYFABRICATION“PAINTABILITY”DIMENSIONSTHICKNESSESWIDTHPACKAGINGDELIVERYEVOLUTIONBetween 6 and 20 times the corrosion resistance of zinc galvanisedin most applications. Aluzinc is particularly good compared to galvanisedin salt laden, acidic and polluted atmospheres.Excellent heat resistance – will not change appearance until beyond 315 0 c.Can be used to much higher temperatures if “greying” is irrelevant.Emissivity figure 0.16 – when new.Basic atmospheres. Contact with more noble metals or their salts.Please consult “Swedish Steel” if in doubt.An Aluzinc sheet has withstood fifteen years of constant salt spray atDungeness Power Station without red rust corrosion at any corner, edge or face.More than 30 years in most environments and beyond 100 yearsin the least corrosive atmospheres.Aluzinc is supplied in a variety of grades but even the mosthumble is a fully lockforming grade. High strength grades as well as deepdrawing grades are available.Aluzinc is very easy to paint. A particularly smooth surface is available.The pre-treatment is easier and more effective than zinc galvanised.Aluzinc + Easyfilm ® is pre-primed ready to paint (most paints).Coils 50 kilos – 10 tonnes. Sheets 1 metre –11 metres. Blanks – All Sizes.Slit coil available.0.4mm thick to 2.0mm thickStandards – 1250mm and 1000mm. Slit widths also available.Sheet and coil substantially packed on refundable pallets.Normal maximum 7 days.Dobel ZX profile version adds strength and aesthetics, fabricates exactly as a flat sheet.Reduces costs by using thinner sheet.MAKE IT - FINISH IT - IN ALUZINC ®19
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Metal Component Design ALUZINC

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