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Ironmaking and steelmaking activities are excellent examples of chemical processes taken beyond the textbooks and laboratory and implemented in industry on a grand scale. The New Zealand Steel plant at Glenbrook is unusual in that the huge blast furnaces that dominate the processes at most steel works around the world are not present. This has eventuated because of the nature of the ore mined locally and used in the process. Early pioneering experiments failed to successfully smelt iron from New…

The Origin of ScaleDuring slab reheating and hot rolling, oxides form on the surface of the steel. During hot rolling there are three forms of rolled in scale that are not normally removed during pickling.

Primary or Furnace Scale: This scale forms on the slab in the reheat furnace by reaction between the surface of the steel with combustion gasses that include excess air, water vapour and carbon dioxide. Extended time in reheat furnaces due to delays contribute to abnormally thick scale layers…

The Acid Regeneration Plant ReactorReactor ContructionA reactor is a vessel where a controlled chemical reaction can take place. The acid regeneration plant reactor is a vertical cylindrical mild steel shell with a coned bottom and shallow dished roof. The reactor vessel is 14 metres high and 3 metres wide. The sides and bottom are refractory lined due to the high temperatures reached inside the reactor. Burners are mounted tangentially to create a vortex.

 

Chemical Reaction Inside the Reacto…

New Zealand Steel and it's employees are proud to be supporting the community.

These are some of the projects that we have supported through community sponsorships. While sponsorship is the largest area of financial assistance we provide for the community, we also make donations to a range of causes including schools, community special events and charitable organisations.

New Zealand Steel has guidelines and criteria in place for community donations and sponsorships to ensure quality and transparency in the way that we support community organisations.

Applications are considered by the Company's Donations & Sponsorships Committee for approval.

> Contact us if you would like to apply.

Creating a Safer Work EnvironmentAt New Zealand Steel, we are committed to providing a safe workplace for our employees as we move towards our goal of Zero Harm. The basic principles under which we operate are:

Working safely is a condition of employment.
Employee involvement is essential.
Management is accountable for safety performance.
All injuries can be prevented.
Training employees to work safely is essential.
All operating exposures can be safeguarded.
Every new employee undertakes a rig…

New Zealand Steel has demonstrated its commitment to the environment by implementing a formal Environmental Management System, providing a structured process to monitor and improve its environmental performance.

This in turn has many benefits for the environment, the community and the company's reputation as a responsible commercial organisation.

In New Zealand, the Resource Management Act places requirements on companies to manage the effects they have on the physical and natural environ…

Reporting an Environmental Incident

NZ Steel has an established environmental feedback process, in summary:

Phone the NZ Steel Environment Team or External Affairs Officer (09-375 8111, 24 hours)
Details of each event and location is recorded in NZ Steel's electronic incident database
Within 24 hours, where appropriate, the initiator's property is visited and samples taken.
Written follow up on the outcome of investigations and any proposed remedial actions.
Where appropriate remedia…

Tour InformationNew Zealand Steel conducts site tours for Schools and Universities; we are no longer able to offer plants tours for the general public. Please accept our apologies for any inconvenience.

If you have a particular interest in a plant or area on site, please let us know at the time of your enquiry.

New Zealand Steel is a 24/7 operational site; the safety of visitors and our employees is our top priority. There may be unforeseen changes in our operational areas which could restrict…