The Hot Dip Galvanizers Association of Southern Africa

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Introduction:

The Hot Dip Galvanizers Association of Southern Africa was founded in 1965 and its membership represents the majority of the available hot dip galvanizing capacity of Southern Africa.

The Vision:

To position the Hot Dip Galvanizers Association of Southern Africa, comprising all its Members and other interested parties, as a professional organization serving the interests of all parties dependant upon the hot dip galvanizing industry.

Mission Statement:

To develop and expand the demand for hot dip galvanizing, identify and develop new market opportunities for the benefit of Members and other stakeholders.

Strategic Objective:

To convince users and specifiers to use hot dip galvanized steel in preference to other coatings and alternative materials, where suitable. This is carried out in three ways:

1. Through the use of general promotion activities.

2. Through focused technical marketing support.

3. Through training and education programmes.

Delivery Activities:

• Promoting the use of hot dip galvanizing for cost effective corrosion protection in applications where its use is appropriate.

• Providing technical assistance and advice for specifiers, fabricators and end users while also recommending alternative protective methods where appropriate.

• Identifying and investigating potential new applications for hot dip galvanizing.

• Participating in development projects on behalf of industry by providing assistance in the form of technical consulting, practical recommendations and assistance with the preparation of design specifications.

• Providing assistance with quality control during fabrication and hot dip galvanizing.

• Disseminating technical knowledge by providing a consulting and training service as well as the publication of technical literature.

• Providing training and education for member companies to ensure a high standard of quality and service throughout the hot dip galvanizing industry.

HOT DIP GALVANIZERS ASSOCIATION SOUTHERN AFRICA

Science Park  Northway  off Marlboro  Kelvin Sandton

P.O. Box 1482 Kelvin 2054

Telephone: (011) 802 5145
Fax: (011) 804 3484
Email: hdgasa@icon.co.za
Web: www.hdgasa.org.za

PROMOTING THE BENEFITS OF HOT DIP GALVANIZING

Reliability

The hot dip galvanized coating is formed by a metallurgical reaction between suitably cleaned steel and molten zinc. This results in the formation of a series of iron/zinc alloys which are overcoated with relatively pure zinc. The process entails total immersion of components in both pretreatment chemicals and molten zinc. This ensures uniform protection and coating reliability even on surfaces which would be inaccessible for coating by other methods.

Dependability

Ease of inspection and dependability in service are beneficial features of a hot dip galvanized coating. The cathodic protection of steel by zinc ensures that corrosion of the underlying steel cannot occur as long as zinc is present. Even at discontinuities on the coating, corrosion creep under the surrounding zinc is not possible.

Predictability

The durability of a hot dip galvanized coating is determined by the degree of corrosion of zinc in a specific environment and the thickness of the coating. Corrosion of zinc is normally uniform, thus durability of a hot dip galvanized coating is predictable in most applications.

PUBLICATIONS AVAILABLE FORM THE ASSOCIATION

• Association Journal - Hot Dip Galvanizing Today.

• Steel Protection by Hot Dip Galvanizing and Duplex Systems.

• Practical Guidelines for the inspection and Repair of Hot Dip Galvanized Coatings.

• Specification for the Performance Requirements of Duplex Coating Systems.

• Code of Practice for Surface Preparation and Application of Organic Coatings Applied to New Unweathered Hot Dip Galvanized Steel.

• Guidelines for the Use of Hot Dip Galvanized Products in the Mining industry.

• Wall Chart - Design for Hot Dip Galvanizing.

• Directory for Specifiers and Buyers

• Guidelines for Buried Hot Dip Galvanized Conveyance Piping.

• Guidelines for the Use of Hot Dip Galvanized Piping for Water Conveyance.