Content with coating

18 December 2015
You may notice, some products after hot-dip galvanization (HDG) coating, even in the same facility, using the same process, may look different from others. It can be noticed that some of the products will be much brighter and others much darker. There is nothing wrong with the product nor with the coating and any difference will depend on the product steel. Variation in coating thickness and the content of silicon in steel may cause different appearances on the finished product.
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18 December 2015
A typical calculating lifetime of Hot-Dip Galvanising coating is set to 20 years on average, but this is based on many variables like humidity, temperature, environmental impact etc. If you require to calculate coating lifetime for your localization, please ask a question to Galvanising Association or visit their website for more details. For more details please refer to: Finishes (Plating) Galvanizing is durable Corrosion Rates in UK & Ireland - Corrosion Map
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25 August 2015
Self Colour / Black Finish Finish Specification S/C Self Colour Bare / Blackened (Black Oxide) Lightly Oiled products are supplied in a black finish with a light covering of oil Hot Dip Galvanised (HDG) Finish Specification HDG Hot Dip Galvanised EN ISO 10684 EN 1461 BS 7371-6 heavy coating deposits of molten zinc (40-180 microns) suitable for long term corrosion protection; a thicker coating deposit gives a longer life expectancy; it is most suitable for structural steelwork; the coating will affect the thread fit and assembly of fasteners due to the non-uniformity of the coating and the average coating thickness of 50-80 microns; in general the fullnuts are tapped oversize after the plating to allow for this but in some cases the bolt threads are undersize prior to coating; high temperature may affect the metallurgical properties of high tensile metals, i.
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