Process Data set: Hydro Aluminium Extrusion Ingot, Henderson Plant (en) en
Process information
| Key Data Set Information | |
| Location | NO |
| Geographical representativeness description | The Hydro Aluminium Metal Extrusion Ingot from the Henderson plant covered in this EPD has US as its main market. The main portion goes to automotive & transportation, building and construction, general engineering, and consumer goods. |
| Reference year | 2025 |
| Name |
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| Use advice for data set | Cradle to gate with options. The following stages have been declared: A1-A4, C1-C4, and D. Further specified in the flow sheets shown in the previous section, except for Module D which is outside the system under scrutiny. Primary liquid production incorporates bauxite mining, alumina production and electrolysis including the use of anodes. Sub module A5 and all modules under B are not declared in this EPD as the extrusion ingot are used for many different applications where these sub modules will vary to the extent that making an average scenario is meaningless. Module D covers the potential benefits from recycling of extrusion ingot from the Henderson Plant after end of useful life. Module D covers all necessary processes from C3 until the aluminium is back on the market and can be compared to the environmental performance of an average market aluminium ingot. The module is further specified in the section LCA: Scenarios and additional technical information |
| Technical purpose of product or process | Extrusion Ingots contain alloying materials to achieve specific end user properties. The various alloys are designated a 4 digit code following the international alloy designation system (see REGISTERED INTERNATIONAL DESIGNATION (aluminum.org)). Most of the Extrusion Ingots made by Hydro Aluminium Metal belongs to the 6000-alloy family that contain Mg and Si as main alloying elements, but in addition alloys belonging to the 1000, 3000 and 5000 alloy groups are produced. All these contain low levels of alloying elements (<2.5%) and are covered by this EPD. Compositions of some common 6000 alloys are shown in table 1. All products are produced according to AA:2018. https://www.hydro.com/en/aluminium/products/casthouse-products/extrusion-ingots/ Table 1 Chemistry of selected alloys within the 6000-alloy family. This EPD covers all the alloys described in the table, as well as 6110, 6101, 6105, 6005, 6463, and others, where the differences in environmental impacts between the various alloys are negligible (<1%) in the final products because of small variations in the amounts of alloying elements between the different groups. |
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Class name
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Hierarchy level
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| General comment on data set | The data quality for the foreground system is very good with specific data for the year 2024 for all inputs and outputs from the recycling plant and the casthouse. The data quality is good for all the main material input which is primary aluminium, cold metal and post-consumer scrap from specific suppliers. As Hydro has ownership in a total value chain from mining of bauxite to production of aluminium sheet ingots, all stages from A1 to A4 are covered by specific data. Data for the background system are mainly from ecoinvent 3.10 (Wernet et al. 2016, ecoinvent 2024) as implemented in the software SimaPro, version 9.6 (Pré 2024). Some data for background systems have also been collected and implemented in the model as part of the project. The allocation is made in accordance with the provisions of EN 15804+A2, but there are also results given for the so-called “cut-off approach” as given in ISO 21930. Infrastructure of the plant, incoming energy, water and waste production in-house is allocated equally among all products through mass allocation. Allocation between aluminium hydroxide and aluminium oxide in the production of alumina for primary metal added in the process are done through economic allocation. The potential environmental impacts from production of primary aluminium are not transferred to post-consumer recycled aluminium. Only the recycling process and transportation of the material is allocated to the post-consumer scrap used for the aluminium at the casthouse producing Hydro Extrusion Ingot. Fig. 3 shows the incoming materials to Hydro plants and main production processes relevant for modules A1-A4. At the far left of the figure, where post-consumer scrap and external cold metal is entering the process (from module A1), there are several different suppliers of both post-consumer scrap and cold metal. The names of these are not disclosed here for reasons of confidentiality. Figure 4 shows the processes included in the end-of-life stages for the aluminium product, where the demolition stage is assumed to be negligible. All major raw materials and all the essential energy is included. Detailed production process for raw materials and both renewable and non-renewable energy flows that are included with very small amounts (<1%) are not included. When applying the cut-off criteria for this EPD, mass and energy flows have been gathered for the entire production system and all processes in the foreground system including A1 to A4. Cut-off has only been applied to module C1 where it is assumed that renewable and non renewable energy and material use is less than 1% of total use of materials, that none of these are hazardous and does not contribute to significant environmental impacts. The total exclusion of mass and energy flows is well below 5% per module and for the system in total. |
| Copyright | Yes |
| Owner of data set | |
| Quantitative reference | |
| Reference flow(s) |
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| Biogenic carbon content |
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| Time representativeness | |
| Data set valid until | 2030 |
| Time representativeness description | 2025-04-23 - 2030-04-23 |
| Technological representativeness | |
| Technology description including background system | Typical technical properties for the alloys covered by this EPD are shown in table 2. |
Modelling and validation
| Subtype | specific dataset | ||||
| LCA methodology report | |||||
| Data sources, treatment and representativeness | |||||
| Documentation of data quality management | |||||
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| Compliance Declarations | |||||
| Compliance |
Compliance system name
EN 15804+A2
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
| Compliance |
Compliance system name
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Approval of overall compliance
Fully compliant |
Nomenclature compliance
Fully compliant |
Methodological compliance
Fully compliant |
Review compliance
Fully compliant |
Documentation compliance
Fully compliant |
Quality compliance
Fully compliant |
Administrative information
| Data generator | |
| Data set generator / modeller |
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| Data entry by | |
| Time stamp (last saved) | 2026-07-21T12:30:45 |
| Data set format(s) | |
| Publication and ownership | |
| UUID | 327091ae-045a-4c35-a4df-ff85a8d863a8 |
| Date of last revision | 2026-05-04T11:27:24.7055513Z |
| Data set version | 00.02.001 |
| Registration authority | |
| Registration number | NEPD-9793-9755 |
| Owner of data set | |
| Copyright | Yes |
| License type | Free of charge for all users and uses |
| Access and use restrictions | None |
Environmental indicators
Indicators of life cycle