New Zealand or in short NZ is one of the countries working on steel and metal plates. New Zealand's manufacturing sector contributed $ 23 billion (12%) of the country's GDP in 2017 and directly employed 241,000 people, while manufactured goods accounted for 52% of the country's export value. The food and beverage sub-sector alone account for 32% of GDP and 71% of exports. 
New Zealand's small population, remote location, and high cost make it a disadvantage in export production. As a result, the bulk of production is destined for the domestic market, and the bulk of the exports produced are large raw materials (such as meat and dairy products), innovative high-value products, and products aimed at global niche markets. New Zealand Steel Limited owns Glenbrook Mill, a steel mill located 40 km south of Auckland in Glenbrook, New Zealand. The plant was built in 1968 and began producing steel in 1969. Currently, the factory produces 650,000 tons of steel per year for domestic use and export. Tiwai Point Aluminum Smelter near Southland Bluff is New Zealand's only aluminum smelter and is owned and operated by Aluminum New Zealand. The smelter was built in 1971 and uses Fiordland's 800 MW Manapouri power plant, which was built next to the smelter, to supply the necessary electricity. 
As New Zealand does not have significant bauxite reserves, all raw materials for the smelter are imported from abroad. An aluminum smelter at Aramaean, near Dunedin, was proposed under the "Think Big" scheme, but the proposal was dropped due to public opposition.
steel plate nz
New zealand or in short NZ is one of the manufacturing countries in the world working on the steel plate. Steel is an iron alloy that improves chemical and physical properties. Most of the steels were found to contain 0.2% to 2.15% carbon, but some steels also contain other elements such as tungsten, chromium, vanadium, and manganese. Steel has been used since ancient times, but until the invention of the Sommer process in the mid-19th century, it was inefficient and expensive to produce. 
Since then, steel has been mass-produced in various forms, including foil, sheet, and plate. Foil is a very thin metal plate that has been hammered or rolled flat. Metal foil can be made of any type of metal, although the most common foils are aluminum and gold. Aluminum foil is typically 0.03 mm thick, although any sheet metal less than 0.2 mm thick is considered aluminum foil. A metal sheet is any metal that is thicker than foil and larger than 6 mm (sheet thickness). Slabs are often used to build structures that do not have to be durable. It is also ribbed or beaded for extra strength without increasing weight. Corrugation is the metal that periodically scrapes to form combs, while diamond is the addition of diamond combs that add structure to the metal. 
Steel is an alloy of iron and carbon that contains less than 2% carbon, 1% manganese, and small amounts of silicon, phosphorus, sulfur, and oxygen. If the carbon content exceeds 2%, the resulting alloy is called cast iron and has different classes, properties, and uses. The price of these two alloys is lower than the price of iron.
metal sheets nz
Metal sheet products in NZ are changing into green steel products which is a better way to help the earth. Australia and NZ's new green steel industry can create tens of thousands of jobs in coal-dependent regions and secure their future by reducing the demand for carbon-intensive raw materials. 
That is the conclusion of a report by the Gratton Institute, affiliated with the University of Melbourne, which claims that Australia has the potential to become a green energy superpower. By assessing the growth capacity of cleaner production facilities, the institute concluded that green steel made from renewable hydrogen could be a multi-billion dollar export industry and employ 25,000 people in regions most affected by global greenhouse gas reduction measures, employees. Check it out, guaranteed. The steels can be classified according to different criteria such as chemical composition, production process, melting method, appearance, strength, crystal structure, oxygen separation process, and heat treatment. Some important divisions are introduced below. Types of steel based on chemical composition: All types of steel are divided into two broad categories based on chemical structure: simple carbon steel and alloy steel. 
Ordinary carbon steel contains carbon and small amounts of other common elements, while alloy steel is a combination of carbon steel and various alloying elements such as manganese, silicon, nickel, titanium, copper, chromium, and aluminum. Alloy elements are added to carbon steel in various proportions and combinations to add specific properties. This action results in changes in hardness, corrosion resistance, strength, and ductility. All types of alloy steel have more heat treatment than carbon steel types and are widely used in industry due to the advantages of good mechanical properties, easy machining, wide availability, etc.
steel sheets nz
steel sheets in NZ are popular because of their weather. 
Galvanized sheet is made of the cold-rolled sheet (oiled sheet), which is another type of steel sheet used to make galvanized sheet through a long process on the entire surface of the oiled sheet. In other words, in galvanized sheet, an electrochemical cell is formed between iron and zinc, where zinc replaces iron as anode and iron as a cathode. In galvanized sheet, even if the coating is damaged, it will not rust. Galvanized sheet is used in automotive, transportation, agricultural, paper and plumbing, billboards, heating pipes, refrigerated passages, kitchen cabinets, water pipes and other fittings, and all places that can corrode and damage iron. It is also used to form galvanized sheets in the form of louvered panels, such as in the construction of saddle roofs. Nickel-based superalloy: Its chemical composition includes chromium (10-20%), titanium, aluminum (above 8%), and cobalt (5-10%). Small amounts of boron, zirconium, and carbon are also used to create higher thermal stability. The In738 is the best-known class of nickel-based super aluminum, widely used in the manufacture of turbine blades. 
Iron-based superalloys: The most important property of these superalloys is their very high heat resistance, so a significant temperature rise does not affect their temperature. The use of iron in superalloy applications is very important because iron-based superalloys have the higher abrasion resistance and oxidation resistance and are therefore relatively inexpensive. Cobalt-based superalloy: The melting point is higher than for nickel-based superalloy, which is heat-resistant, oxidation-resistant and abrasion-resistant. High resistance to fatigue failure and suitable weldability are also other properties of these superalloys.
roofing sheets nz
Roofing sheets are other products used especially in NZ because this country is near the ocean and water causes much damage to the iron and steel products. 
Galvanized steel is one of the most popular and useful steels in the world due to its durability, efficiency, cost-effectiveness, and most importantly rust resistance. Despite these advantages, the demand for galvanized steel has obviously been low. Almost from the early 1990s, the use of steel to build cars became commonplace. However, due to the lack of demand for corrosion-resistant steel in the North American market, manufacturers in the steel industry have not considered producing galvanized steel. In fact, the use of galvanized steel and its benefits began in the late 1980s in Western markets; that is, just around the time the Japanese began importing cars from the United States with anti-corrosion features. Japan is a country with a coastal climate that causes steel to oxidize and rust a lot, and galvanized steel must be used when making cars for export to the country. Until then, North American-built vehicles were not as resistant to corrosion and rust in wet areas as would be a solution for repainting. 
Western automakers have gradually raised the bar and placed certain warranty obligations on their customers. This event also contributed to the use of galvanized steel for the manufacture of cars, although car manufacturers spent a lot of money and expenses on setting up production lines, car manufacturers started using galvanized steel, because they had to compete in the global market. "This important change led to the use of electro-galvanized wire."