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 (electric arc furnace route, high scrap content); Steel sections
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| Use advice for data set | This data set refers to the production of 1kg of hot-rolled steel section manufactured via the electric arc furnace route in Germany. The density is 7850 kg/m³. The data set can be linearly scaled (by mass) for 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: An economic allocation was assumed for slag produced. The layer 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 sections are mainly used for load-bearing applications, e.g. in floor-, wall-, roof-, or ceiling constructions or as an installation or assembly element. 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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| Material properties of the reference flow |
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| Time representativeness | |
| Data set valid until | 2024 |
| Time representativeness description | Annual average |
| Technological representativeness | |
| Technology description including background system | The main input material for the arc furnaces is ferrous metal scrap, which includes scrap within steel mills (e.g., scrap), scrap from steel product manufacturers (e.g., vehicle builders), and consumer scrap (e.g., end-of-life products). In the process, slag is formed from lime to collect unwanted components in the steel. Accordingly, lime is an additive, just as coal (carbon) is a reducing agent. Oxygen lances and/or oxygen burners are used to assist in early stages of melting. Steelmaking is followed by multi-stage shaping and electrolytic galvanizing. Description of life cycle stages modeled: Modules A1-A3: 1.05 kg of scrap is used to produce 1 kg of steel section (this results in negative net scrap and thus loads in Module D). All energy sources were calculated using a German background system. The crude steel production is followed by a multi-stage hot rolling process for shaping and electrolytic galvanizing. The upstream chain of the electrical energy used and the galvanizing process dominate the life cycle assessment . Module A4: A truck transport to the building 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 ( load-free). 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. This means that the loads for reprocessing and credits for substitution of primary material 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 losses) for the average material mix (of different alloys) present. In the disposal phase, a mechanical dismantling is accounted for in module C1 for steel products (dredger). For all other metals, manual dismantling is performed ( load-free). 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 less secondary material contained, if any, less treatment losses) for the average material mix (of different alloys) present. |
| 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) | 2022-12-06T10:25:09+01:00 |
| Data set format(s) | |
| Data entry by | |
| Publication and ownership | |
| UUID | ae5396d9-2952-4eae-b216-17d56758ece0 |
| Data set version | 20.23.050 |
| 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