Hot Dip Galvanising

Home/Hot Dip Galvanising

Specifier Galvanising Checklist


The achievement of a quality hot dip galvanized coating, for general and architectural use, is dependent on many issues, some controllable and some not. This checklist addresses the issues that can be controlled by the designer and those controllable by the galvanizer. LEAD TIMES In the case of large contracts, the galvanizer

Specifier Galvanising Checklist2018-06-18T10:42:48+02:00

Discolouration of Galvanised Steel


Staining and Discolouration of Galvanised Steel Galvanized steelwork can be subject to staining and discolouration which can sometimes be mistaken for failure of the coating and rusting of the base steel. There are numerous reasons why such staining may take place and there are summaries below. Surface Contamination One of the

Discolouration of Galvanised Steel2018-01-25T12:26:03+01:00

Distortion & Warping During Galvanising


Distortion & Warping During Galvanising In practice, cases of distortion during hot dip galvanizing are relatively infrequent. There are a number of important criteria that designers should keep in mind. Causes Distortion occurs due to the relief of locked-in stresses within a steel section or fabrication. At room temperature, the steel

Distortion & Warping During Galvanising2018-01-25T12:02:18+01:00

Protecting Threads During Galvanising


Protecting Threads During Galvanising When galvanizing a steel article, it may be desirable to prevent a coating from forming in certain areas which will have special functions such as: A threaded component on a fabrication Drilled holes Surfaces which will be subject to welding after galvanizing There are several different methods

Protecting Threads During Galvanising2018-01-25T11:47:02+01:00

Renovation of Hot Dip Galvanised Steel


Renovation of Hot Dip Galvanised Steel The galvanized coating applied by immersion in a bath containing molten zinc not only provides a high level of corrosion protection but is also very robust, such that it will normally withstand handling and erection. However, the coating may occasionally be subject to small areas

Renovation of Hot Dip Galvanised Steel2018-01-25T11:48:28+01:00

Hot Dip Galvanised Castings


Hot Dip Galvanised Castings Galvanizing of castings is covered by EN ISO 1461:2009. Hot dip galvanizing of cast iron provides excellent protection from corrosion and the coating is applied by immersion in molten zinc at 450°C forming a tough, adherent coating which is bonded to the base metal by series of

Hot Dip Galvanised Castings2018-01-25T11:34:43+01:00

Welding Galvanised Steel


Welding Before and After Hot Dip Galvanizing A proportion of steelwork that is hot dip galvanized is subject to fabrication by welding prior to dipping. The welding process can affect galvanizing in terms of coating quality, distortion and creating an increased potential for cracking in isolated instances. By taking suitable actions

Welding Galvanised Steel2018-01-19T11:14:25+01:00

Variations in Galvanising Surface Colour


Variations in Galvanising Surface Colour Dark, grey or light grey - it`s all galvanised. Protection is equal - and often better - with dark grey coatings than with light grey. When rimmed or aluminium killed steels are hot dip galvanised, compact zinc-iron alloy layers are formed and covered by zinc, which

Variations in Galvanising Surface Colour2018-01-25T12:37:10+01:00

Size and Weight of Steel Work for Galvanizing


Size and Weight of Steel Work for Galvanizing Hot dip galvanising is a process in which articles are immersed in various baths. Most hot dip galvanising is contracted out to specialist firms, which may also be responsible for the transport and handling of the material. Although bath sizes have increased over

Size and Weight of Steel Work for Galvanizing2017-12-11T16:56:50+01:00

Galvanised Containers and Tubular Fabrications


Galvanised Containers and Tubular Fabrications Processes in the galvanising plant, such as degreasing, pickling, rinsing, fluxing and actual hot dip galvanising itself involve immersion in baths. It is important therefore that the liquid in the bath can reach into every corner and crevice - even with hollow components. In got dip

Galvanised Containers and Tubular Fabrications2018-01-25T12:56:29+01:00
Go to Top