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Process Data set: Hydro REDUXA 4.0, Foundry Alloy with more than 8% Si (en) en

Key Data Set Information
Location NO
Geographical representativeness description The Hydro REDUXA 4.0, Foundry Alloy with more than 8% Si covered in this EPD has all of Europe as its main market where most is used for the automotive market.
Reference year 2025
Name
Hydro REDUXA 4.0, Foundry Alloy with more than 8% Si
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 sheet shown below. 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 Foundry Alloy are used for many different applications where these sub modules will vary to the extent that making an average scenario is nonsensical. Module D covers the potential benefits from recycling of REDUXA foundry alloys with more than 8% Si, 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 Foundry Alloys contain alloying material to achieve specific end user properties. The various alloys are designated a 5 digit code following the EN standard EN 1676:2020 “Aluminium and aluminium alloys - Alloyed ingots for remelting – Specifications”. Products covered are variants within 43xxx, 44xxx, 46xxx, 47xxx, and 48xxx. https://www.hydro.com/en/global/aluminium/products/casthouse-products/foundry-alloys/
Classification
Class name : Hierarchy level
  • EPDNorge: Construction / 34056599-c67c-4b90-92de-6e4f35e3f8c2 (missing translation)
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 primary production plants and casthouses. 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 PFA 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. 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. 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. 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)
Biogenic carbon content
  • Carbon content (biogenic): 0.0 kg
  • Carbon content (biogenic) - packaging: 0.0 kg
Time representativeness
Data set valid until 2030
Time representativeness description 2025-03-28 - 2030-03-28
Technological representativeness
Technology description including background system Typical technical properties for the alloys covered by this EPD vary due to the range of alloying elements added.

Indicators of life cycle

IndicatorDirectionUnit Production
A1-A3
 Transport
A4
 De-construction
C1
 Transport
C2
 Waste processing
C3
 Disposal
C4
 Recycling Potential
D
Input
  • 57.8
  • 0.0355
  • 0
  • 0.0023
  • 0.228
  • 0.00215
  • -22.7
Input
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Input
  • 57.8
  • 0.0355
  • 0
  • 0.0023
  • 0.228
  • 0.00215
  • -22.7
Input
  • 16.8
  • 0.173
  • 0
  • 0.0111
  • 0.51
  • 0.00319
  • -31.9
Input
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Input
  • 16.8
  • 0.173
  • 0
  • 0.0111
  • 0.51
  • 0.00319
  • -31.9
Input
  • 0.00428
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Input
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Input
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Input
  • 0.389
  • 0.000276
  • 0
  • 0.0000185
  • 0.000815
  • -0.000257
  • -0.118
Output
  • 1.58
  • 0.00204
  • 0
  • 0.000133
  • 0.0198
  • 0.000255
  • -1.26
Output
  • 4.91
  • 0.127
  • 0
  • 0.00938
  • 1.62
  • 0.54
  • -1.73
Output
  • 0.0000479
  • 6.83E-7
  • 0
  • 4.31E-8
  • 0.00000233
  • 2.68E-8
  • -0.000159
Output
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Output
  • 0
  • 0
  • 0
  • 0
  • 0.915
  • 0
  • 0
Output
  • 0
  • 0
  • 0
  • 0
  • 0.0254
  • 0
  • 0
Output
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
Output
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0
  • 0

IndicatorUnit Production
A1-A3
 Transport
A4
 De-construction
C1
 Transport
C2
 Waste processing
C3
 Disposal
C4
 Recycling Potential
D
Abiotic depletion potential - fossil resources (ADPF)
  • 52.1
  • 2.66
  • 0
  • 0.134
  • 1.44
  • 0.0209
  • -64
Abiotic depletion potential - non-fossil resources (ADPE)
  • 0.00000598
  • 4.13E-7
  • 0
  • 3.09E-8
  • 0.00000604
  • 3.08E-9
  • 0.0000814
Acidification potential, Accumulated Exceedance (AP)
  • 0.0242
  • 0.000713
  • 0
  • 0.0000198
  • 0.00078
  • 0.00000553
  • -0.0314
Global Warming Potential - biogenic (GWP-biogenic)
  • 0.054
  • 0.0000989
  • 0
  • 0.00000658
  • 0.00275
  • 0.0000421
  • -0.0128
Global Warming Potential - fossil fuels (GWP-fossil)
  • 4.74
  • 0.15
  • 0
  • 0.0095
  • 0.242
  • 0.00108
  • -5.19
Global Warming Potential - total (GWP-total)
  • 4.81
  • 0.15
  • 0
  • 0.00951
  • 0.244
  • 0.00113
  • -5.3
Global Warming Potential - land use and land use change (GWP-luluc)
  • 0.0188
  • 0.0000483
  • 0
  • 0.00000315
  • 0.000105
  • 2.38E-7
  • -0.0942
  • 4.756
  • 0.1499
  • 0
  • 0.009503
  • 0.2412
  • 0.001088
  • -5.287
Eutrophication potential - freshwater (EP-freshwater)
  • 0.0000885
  • 0.00000115
  • 0
  • 7.41E-8
  • 0.00000658
  • 1.06E-8
  • -0.000186
Eutrophication potential - marine (EP-marine)
  • 0.00443
  • 0.000152
  • 0
  • 0.00000463
  • 0.000092
  • 0.00000239
  • -0.00438
Eutrophication potential - terrestrial (EP-terrestrial)
  • 0.05
  • 0.00169
  • 0
  • 0.0000513
  • 0.00112
  • 0.0000238
  • -0.0479
Photochemical Ozone Creation Potential (POCP)
  • 0.0205
  • 0.000792
  • 0
  • 0.0000329
  • 0.000379
  • 0.00000854
  • -0.0187
Depletion potential of the stratospheric ozone layer (ODP)
  • 7.54E-8
  • 3.47E-9
  • 0
  • 1.89E-10
  • 2.13E-9
  • 2.9E-11
  • -6.09E-8
Water (user) deprivation potential (WDP)
  • -0.31
  • 0.0082
  • 0
  • 0.000555
  • 0.0163
  • -0.000202
  • -0.705

IndicatorUnit Production
A1-A3
 Transport
A4
 De-construction
C1
 Transport
C2
 Waste processing
C3
 Disposal
C4
 Recycling Potential
D
1This impact category deals mainly with the eventual impact of low dose ionizing radiation on human health of the nuclear fuel cycle. It does not consider effects due to possible nuclear accidents, occupational exposure nor due to radioactive waste disposal in underground facilities. Potential ionizing radiation from the soil, from radon and from some construction materials is also not measured by this indicator.
2The results of this environmental impact indicator shall be used with care as the uncertainties on these results are high or as there is limited experiences with the indicator.
Potential Human exposure efficiency relative to U235 (IRP) 1
  • 0.0794
  • 0.000992
  • 0
  • 0.0000617
  • 0.00232
  • 0.0000441
  • -0.212
Potential incidence of disease due to PM emissions (PM) 2
  • 2.73E-7
  • 9.78E-9
  • 0
  • 6.96E-10
  • 1.41E-8
  • 1.18E-10
  • -4E-7
Potential Soil quality index (SQP) 2
  • 24.7
  • 1.11
  • 0
  • 0.0807
  • 1.45
  • 0.0363
  • -2.28
Potential Comparative Toxic Unit for humans - non-cancer effects (HTP-nc) 2
  • 2.05E-8
  • 1.18E-9
  • 0
  • 8.4E-11
  • 5.27E-9
  • 4.7E-11
  • 1.96E-8
Potential Comparative Toxic Unit for humans - cancer effects (HTP-c) 2
  • 7.95E-8
  • 9.44E-10
  • 0
  • 6.7E-11
  • 1.29E-9
  • 6E-12
  • -1.42E-8
Potential Comparative Toxic Unit for ecosystems (ETP-fw) 2
  • 3.81
  • 0.12
  • 0
  • 0.00719
  • 0.535
  • 0.00168
  • 0.433