| Tags | Dieser Datensatz ist Bestandteil der ÖKOBAUDAT. |
Process information
| Key Data Set Information | |||
| Location | AT | ||
| Reference year | 2019 | ||
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| Use advice for data set | Scope: This EPD is based on a declared unit of 1 m² of average hot-dip galvanized steel strip with a surface weight of 9 kg/m² produced at the production site in Linz. System boundary: The life cycle assessment of average hot-dip galvanized steel strips produced by voestalpine refers to a cradle-to-gate analysis with options. The following lifecycle phases are taken into consideration in the analysis: Module A1-A3 | Production stage The product stage includes upstream burdens of purchased raw materials (coal, iron ore, pellets, etc.) and the corresponding transport to the production site in Linz. Material and energy flows needed for the coking plant, sintering plant, blast furnaces, steelmaking plant and rolling mill as well as during hot-dip galvanizing were recorded on site. Electricity is provided at Linz in a power station where furnace gases are used as fuel. Since more energy is used than is supplied by this company-owned power station, natural gas and electricity is additionally procured from Austrian networks. Scrap input in module A1-A3 is regarded as burden-free. Module A1-A3 also includes the production of the product packaging. Module C3 | Waste treatment Product flows that reach Module D for recycling leave the product system in C3. Environmental impacts resulting from the grinding and sorting of steel scrap are not included. Module C4 | Landfilling Module C4 declares the environmental impacts incurred by landfilling (5% of the product). Module D | Credits and loads beyond the system boundary The potential for substituting primary steel with a recycling scenario (95% of the product) is set forth in Module D. | ||
| Technical purpose of product or process | The application areas for hot-dip galvanized steel strips cover many sectors such as: - Household-appliance industry - House Technology - Roof/Cladding/Drainage - Section industry - Tube industry - Commercial vehicle industry - Automotive sub-suppliers - Automotive industry Hot-dip galvanized steel strips manufactured by voestalpine Stahl GmbH are produced with various zinc coatings, surface qualities and post-treatments such as oil, passivation or anti-fingerprinting. As a result, the product shows best processing characteristics (e.g. rolling, deep-drawing, etc.) and a high degree of corrosion protection. | ||
| Classification number | 4.1.04 | ||
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| General comment on data set | Hot-dip galvanized steel strips manufactured by voestalpine Stahl GmbH consist of steel strips produced in blast furnaces coated with a zinc or zinc-magnesium layer including client-specific post-treatment (e.g. anti-corrosive oiling). The average represents low-alloyed mild steel, press-hardened steels but also higher-strength IF steels.For the placing on the market of the product in the European Union/European Free Trade Association (EU/EFTA) (with the exception of Switzerland) /Regulation (EU) No. 305/2011 Construction Product Regulation (CPR)/ applies. The product needs a declaration of performance taking into consideration /EN 10025/, 2005, Hot rolled products of structural steels and the CE-marking. For the application and use the respective national provisions apply. In Austria, for example, it is the building regulations of the individual federal states as well as the technical stipulations based on these regulations. | ||
| Copyright | Yes | ||
| Owner of data set | |||
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| Data set valid until | 2024 | ||
| Technological representativeness | |||
| Technology description including background system | The starting material for the production of hot-dip galvanized steel strip at voestalpine is crude steel made in the primary route (blast furnace, LD steelmaking plant) at the Linz site. The molten crude steel is cast into slabs using a continuous casting method. After cooling, the slabs are reheated in pusher-type or walking beam furnaces to 1100 - 1250 °C and rolled to strips of 1.2 - 4 mm thickness in several rolling steps. A mill scale layer forms on the hot-rolled strip which is removed before further processing in the cold rolling mill (scale removal). This production step first proceeds through a mechanical loosening of the scale layer (levelling line). The steel strip is subsequently pickled with hydrochloric and sulphuric acid. After pickling, the strip is rinsed, dried, and oiled. The pickled hot strip is further processed in voestalpine's cold rolling mill. The steel strip can be rolled to thicknesses of between 0.4 and 4 mm. Heat treatment (batch or continuous annealing) is performed to restore the formability of the steel strip and to produce a material with certain material properties. Metallic coatings (zinc and zinc-magnesium) are used to protect the surface of the steel strip, which exhibit a protective cathodic effect for the steel strip. The declared product is galvanized in a hot-dip galvanizing process. Technical data: The data given in the Declaration of Performance apply. Declared unit: This environmental product declaration refers to a declared unit of 1 m² of hot-dip galvanized steel strip with an average surface weight of 9 kg/m² and a reference thickness of 1.13 mm. The LCA result for other thicknesses can be calculated by means of linear conversion of the surface weight. | ||
Modelling and validation
| Subtype | average dataset | ||||
| LCA methodology report | |||||
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Quality compliance
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| Compliance |
Compliance system name
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Approval of overall compliance
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Nomenclature compliance
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Methodological compliance
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Review compliance
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Documentation compliance
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Quality compliance
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Administrative information
| Data entry by | |
| Time stamp (last saved) | 2019-05-03T09:53:17.276 |
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| Publication and ownership | |
| UUID | 35ecb076-3f81-40ed-bd9c-8ffd208a070d |
| Data set version | 00.05.000 |
| Registration authority | |
| Registration number | EPD-VOE-20190048-IBC1-DE |
| Owner of data set | |
| Copyright | Yes |
Environmental indicators
Indicators of life cycle