132:
243:. Commercial operations began in 1968, with imported feed coil being used to produce steel for domestic and Pacific Island markets. The company pioneered the direct reduction process for reducing iron oxide (ironsand) into metallic iron. This culminated in the commissioning in 1970 of iron and steelmaking facilities to produce billets for domestic and export markets. Expansion continued with the commissioning of a pipe plant in 1972 and a prepainting line in 1982. Total output at this time averaged 300,000 tonnes a year.
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facility. The process used in the converter is the second unusual piece of equipment: oxygen is blown on both top and bottom of the converter (Klöckner Oxygen Blown Maxhütte process, or KOBM converter), whereas oxygen is only blasted at the top of the converter in most steelmaking plants.
273:. In 1992, BHP took up a controlling interest with an 81% shareholding by acquiring the shares of Fisher & Paykel and Steel & Tube. The company was initially renamed BHP New Zealand Steel Limited, then in 2002 was renamed New Zealand Steel when BHP Steel was listed on the
291:
announced that the New
Zealand Government would provide funding of up to $ 140 million for an initiative to halve the consumption of coal at the Glenbrook plant and reduce carbon emissions. The project involves installation of an
234:
New
Zealand Steel Limited was incorporated by the New Zealand Government in 1965. In 1967, construction started on a mill at Glenbrook. Glenbrook was chosen as the site due to the area's proximity to the Waikato North Head
170:
of steel a year, which is either used domestically or exported. Over 90% of New
Zealand's steel requirements are produced at Glenbrook, while the remaining volume is produced by Pacific Steel, a steel recycling facility in
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230:
began investigating smelting from the ironsands. In 1959, The New
Zealand Government established the NZ Steel Investigating Company under the Iron and Steel Industry Act 1959 as a vehicle for the investigations.
246:
The steel company ran at a loss during the 1970s, until 1981 when a more optimised, commercially viable method for extracting iron was implemented, leading to an expansion of the
Glenbrook facilities.
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183:. Coal and lime trains arrive daily. Steel products are also transported daily. The mill employs 1,150 full-time staff and 200 semi-permanent contractors.
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316:. Approximately, 1.2 million tonnes of ironsand ore are delivered to the mill annually. The area is estimated to contain over a billion tonnes.
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214:. From the late 19th century to the 1950s, there were many unsuccessful attempts to smelt steel from the ironsands. A prize offered by the
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was never claimed, mostly due to problems encountered by people attempting to process the iron sand, such as a viscous slag of
194:. Because ironsand is a low grade ore with many contaminants, the mill's primary plants' operations and equipment are unusual.
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257:, the mill was upgraded. In 1987, New Zealand Steel was acquired by Equiticorp. Equiticorp was bankrupted in the New Zealand
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166:. The mill was constructed in 1968 and began producing steel products in 1969. Currently, the mill produces 650,000
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recovery and removal is done due to the high vanadium content of the ironsand ore. The sand also contains
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261:. In 1989 New Zealand Steel was acquired by Helenus Corporation, which consisted of
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594:"'Iron and steel - The steel industry', Te Ara - the Encyclopedia of New Zealand"
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that forms and blocks equipment when heat is applied to the sand. In 1954, the
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638:"chemical composition of ironsands Te Ara - the Encyclopedia of New Zealand"
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the ore to metallic iron. This process is unusual as most mills use
363:. Oxidation of the molten metal and contaminants is achieved by a
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The west coast beaches of the North Island of New
Zealand between
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to replace coal as the heat source for recycling scrap metal.
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New
Zealand Steel is notable due to its unique utilization of
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Glenbrook's iron plant contains four multiple hearth
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482:Evolving Auckland: The City's Engineering Heritage
537:. New Zealand Steel Limited. 2011. Archived from
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444:"1. Iron – an abundant resource - Iron and steel"
393:. New Zealand Steel Limited. 2011. Archived from
228:Department of Scientific and Industrial Research
1427:Buildings and structures in the Auckland Region
561:"Govt announces major emissions reduction deal"
210:contain ironsand deposits rich in the mineral
1177:
686:
8:
1417:Companies listed on the New Zealand Exchange
61:Glenbrook Steel Mill location in New Zealand
35:Glenbrook Steel Mill from the mill's lookout
507:"Iron and steel - Attempts to extract iron"
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431:. The New Zealand Institute of Chemistry.
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919:Cockatoo Docks & Engineering Company
511:Te Ara - the Encyclopedia of New Zealand
425:John Green and Jeremy Batchelor (2008).
484:. Wily Publications. pp. 245–261.
377:
882:(17% LNG phase, 8% domestic gas phase)
505:Templeton, Fleur (28 September 2010).
179:, which was formerly a branch line to
175:, Auckland. The mill is served by the
7:
332:, and two melters. The rotary kilns
16:Steel mill in Glenbrook, New Zealand
1369:Franklin District Council (defunct)
476:(2011). "Steel from Ironsand". In
448:Te Ara Encyclopedia of New Zealand
14:
636:Templeton, Fleur (12 June 2006).
592:Templeton, Fleur (12 June 2006).
442:Templeton, Fleur (12 June 2006).
391:"Glenbrook Steel Site Operations"
143:Glenbrook Steel Mill's iron plant
135:Glenbrook Steel Mill from the air
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573:from the original on 22 May 2023
304:The ironsand ore is mined at an
177:Mission Bush Branch railway line
52:
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158:located 40 kilometres south of
1412:Steel companies of New Zealand
1116:BHP Group Limited v Impiombato
1110:Ok Tedi environmental disaster
275:Australian Securities Exchange
216:Taranaki Provincial Government
1:
535:"New Zealand Steel - History"
854:Kambalda Nickel Concentrator
904:Australian Iron & Steel
340:for the reduction process.
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1300:Facilities and attractions
1432:Franklin Local Board Area
1325:Glenbrook Vintage Railway
1194:Franklin Local Board Area
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988:Yeelirrie uranium project
849:Kalgoorlie Nickel Smelter
783:Orebodies 18, 23 & 25
259:sharemarket crash of 1987
148:New Zealand Steel Limited
69:
40:
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1335:Manukau Heads Lighthouse
961:Ravensthorpe Nickel Mine
880:North West Shelf Venture
428:The Manufacture Of Steel
365:basic oxygen steelmaking
1320:Glenbrook Power Station
1131:BHP Mitsubishi Alliance
859:Kwinana Nickel Refinery
615:"The science of steel"
164:Glenbrook, New Zealand
144:
136:
1192:Waiuku Subdivision -
966:Richards Bay Minerals
142:
134:
1356:Franklin Local Board
1307:Āwhitu Regional Park
946:Newcastle Steelworks
875:Mount Newman railway
294:electric arc furnace
265:, Steel & Tube,
241:Huntly Power Station
152:Glenbrook Steel Mill
150:is the owner of the
24:Glenbrook Steel Mill
1250:Geographic features
844:Goldsworthy railway
747:Goonyella Riverside
617:. New Zealand Steel
541:on 26 February 2012
263:Fisher & Paykel
253:era of New Zealand
110: /
1137:between BHP &
1100:BHP Billiton Tower
977:Whyalla Steelworks
930:Ekati Diamond Mine
310:Waikato North Head
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1386:New Zealand Steel
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1039:James Balderstone
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864:Mad Dog oil field
566:Otago Daily Times
397:on 6 January 2014
255:industrialisation
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1351:Auckland Council
1313:Awhitu Wind Farm
1269:Karioitahi Beach
1257:Āwhitu Peninsula
1209:Populated places
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1105:Brookfield Place
1069:George McCulloch
1059:Andrew Mackenzie
870:Moranbah Airport
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1221:Glenbrook Beach
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1049:Marius Kloppers
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289:Chris Hipkins
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1291:Waiuku River
1114:
1034:Philip Aiken
1001:Acquisitions
951:Ok Tedi Mine
909:BHP Shipping
830:
767:Mount Arthur
641:. Retrieved
631:
621:18 September
619:. Retrieved
609:
597:. Retrieved
587:
575:. Retrieved
564:
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543:. Retrieved
539:the original
514:. Retrieved
510:
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481:
474:Ingram, John
451:. Retrieved
447:
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399:. Retrieved
395:the original
342:
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18:
1202:New Zealand
1008:Oz Minerals
778:Olympic Dam
762:Mount Keith
545:20 February
401:21 February
345:steelmaking
117: /
93:Coordinates
1401:Categories
1344:Government
1315:(proposed)
1139:Mitsubishi
1133:, a 50/50
1129:Assets of
1084:Colin Syme
794:Resolution
789:Peak Downs
372:References
156:steel mill
1216:Glenbrook
1013:Petrohawk
914:BlueScope
752:Jimblebar
741:Escondida
453:4 January
357:manganese
353:aluminium
279:BlueScope
251:Think Big
239:mine and
208:Whanganui
1198:Auckland
1151:Category
925:Comsteel
831:Atlantis
757:Leinster
735:Cerrejón
571:Archived
361:titanium
349:vanadium
326:furnaces
314:pipeline
267:ANZ Bank
237:ironsand
224:nitrides
220:carbides
188:ironsand
160:Auckland
105:174°44′E
86:Auckland
82:Location
972:South32
941:Lysaght
716:Current
480:(ed.).
347:plant,
343:In the
300:The ore
249:In the
198:History
190:as its
173:Ōtāhuhu
102:37°13′S
1262:Paorae
1241:Waiuku
1236:Pollok
1027:People
897:Former
885:VF2388
811:Yarrie
800:Saraji
730:Area C
709:Assets
643:2 June
599:2 June
577:24 May
516:30 May
488:
334:reduce
181:Waiuku
168:tonnes
1093:Other
984:(40%)
968:(37%)
932:(80%)
921:(38%)
866:(24%)
835:(44%)
823:Other
813:(85%)
807:(85%)
805:Yandi
796:(50%)
785:(85%)
774:(85%)
743:(58%)
737:(33%)
723:Mines
330:kilns
162:, in
74:Built
645:2024
623:2017
601:2024
579:2023
547:2012
518:2012
486:ISBN
455:2013
403:2012
359:and
269:and
222:and
206:and
154:, a
77:1968
1407:BHP
702:BHP
308:at
277:as
271:BHP
192:ore
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1196:,
833:PQ
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463:^
446:.
411:^
380:^
355:,
281:.
1185:e
1178:t
1171:v
694:e
687:t
680:v
647:.
625:.
603:.
581:.
549:.
520:.
494:.
457:.
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