A superceding data set exists.
Process information
| Key Data Set Information | |||
| Location | DE | ||
| Geographical representativeness description | The data set represents the country specific situation in Germany, focusing on the main technologies, the region specific characteristics and / or import statistics. | ||
| Reference year | 2022 | ||
| Name |
Base name
; Quantitative product or process properties
Galvanized steel profile (blast furnace route, low scrap content); Steel sections; Steel sections
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| Use advice for data set | This data set refers to the production of 1kg hot-rolled steel section produced via the blast furnace route in Germany. The density is 7850 kg/m³. The data set can be linearly scaled (by mass) for the estimation of other densities. Companies, associations, and literature data were used for the modeling. The data set is not suitable for representing steel production from other countries of origin. The data set includes corrosion protection by electrolytic galvanizing. Estimates and assumptions: The amount of cooling scrap used was assumed to be 0.2 kg of scrap per kg of steel produced. An economic allocation was assumed for blast furnace slag. The coating thickness of the galvanizing was assumed to be 15µm. Overall, a very good representativeness for steel sections produced in Germany can be assumed. | ||
| Technical purpose of product or process | "Steel profiles are mainly used for load-bearing applications, e.g. in floor-, wall-, roof-, or ceiling constructions or as installation or assembly elements. Electrolytically galvanized components are usually used in non-weathered interior applications. For outdoor applications, additional protective measures (e.g. thick-film galvanizing, powder coating or similar) are usually required." | ||
| Classification number | 4.1.03 | ||
| Classification |
Class name
:
Hierarchy level
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| General comment on data set | This data set has been modeled according to the European Standard EN 15804+A2 for Sustainable Building. Results are depicted in modules that allow the structured expression of results over the entire life cycle. | ||
| Uncertainty margins | 10 | ||
| Description | Product system almost completely covered. Good technological, temporal and geographic representativeness. | ||
| Copyright | Yes | ||
| Owner of data set | |||
| Quantitative reference | |||
| Reference flow(s) |
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| Time representativeness | |||
| Data set valid until | 2024 | ||
| Time representativeness description | Annual average | ||
| Technological representativeness | |||
| Technology description including background system | Steel production (from pig iron) is carried out in the converter using the oxygen top-blowing process (Linz-Donawitz process). In the oxygen top-blowing process, air or pure oxygen is blown onto the melt in the converter by a blowing lance. The oxygen in the pig iron leads to rapid oxidation of the accompanying elements. Scrap is added to cool the reaction mixture, which is recycled in this way. Steel production is followed by multi-stage shaping and electrolytic galvanizing. Description of the life cycle stages modeled: Modules A1-A3: For the single ore used, a mix of origins from Australia, Brazil and Canada were used. For the coal used, a mix of the countries of origin Canada and Australia was applied. All energy sources were calculated using a German background system. Crude steel production is followed by a multi-stage hot rolling process for shaping and electrolytic galvanizing. The emissions from the process and the upstream chains of the primary products (esp. iron ore) dominate the life cycle assessment. Module A4: A truck transport to the construction site at a distance of 100 kilometers was considered. The transport distance can be adjusted at the building level if necessary. Module A5: manual installation (unloaded). In the disposal phase, mechanical dismantling is accounted for in module C1 for steel products (excavator). Collection waste is neglected. It is assumed that all metals reach the end of their waste life directly after dismantling. That is, loads for reprocessing and credits for substitution of primary materials are reported in Module D. The transport in module C2 to the reprocessing plant is done by truck (50km). The loads for sorting, remelting, slag treatment, landfilling of residual materials, treatment of filter dusts and dross treatment are included in module D. Credits are awarded for the net scrap quantity (recovered quantity minus secondary material contained, if any, minus treatment waste) for the average mix of materials present (from different alloys). | ||
| Pictogram of technology | |||
Modelling and validation
| Subtype | generic dataset | ||||||||
| Data sources, treatment and representativeness | |||||||||
| Data source(s) used for this data set | |||||||||
| Completeness | |||||||||
| Validation | |||||||||
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| Compliance Declarations | |||||||||
| Compliance |
Compliance system name
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Approval of overall compliance
Fully compliant |
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) | 2022-12-06T10:24:41+01:00 |
| Data set format(s) | |
| Data entry by | |
| Publication and ownership | |
| UUID | 8b1ac41c-10ab-453f-a761-edf1a603aea6 |
| Data set version | 20.23.051 |
| Preceding Data set version | |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | The license conditions as stated on https://www.oekobaudat.de/apply. |
Environmental indicators
Indicators of life cycle