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Dedicated metallurgical machinery parts including rolling-mill rolls · Calculation Rules

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  • Warnings methodology_not_reviewed Authored methodology is candidate guidance and still requires methodology review.

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CPC 3.0:44320 · exact

Source

Calculation Rules

rule_idApplies toFormula or ruleInputsOutputsource_ids
direct_cohort_normalizationall inventory rowsDivide each attributable native quantity by the sum of calibrated accepted net part masses of the same configuration and period; raw fields are retained in collection and quality tables.Qattr; Dnet; cp_massper 1 kg reference flow

Data Quality Requirements

requirement_idApplies toRequirementEvidence
complete_bomactual configurationCover all actual exchanges; separate make/buy/accessories/fills/test charges; gaps explicitactual BOM/routes/suppliers
scrap_statesteel wasteActual post-industrial steel scrap untreated within factory and transferred without further treatment; retain own composition/moisture/stocks/paired internal returns and receiving treatment interface, no generic recycling proxy.actual scrap tickets/composition/state/receiver evidence
mass_periodcohortSame configuration/period/acceptance, calibrated mass/stocks; no cross-family meancalibration/period ledger
balance_uncertaintyphysical balancesOwn water fraction/density/assay/reactions/paired returns; compare combined uncertaintymeasurement/sampling/reaction/allocation evidence
cohort_rawcohortNaccepted, Dnet and Qattr share configuration/period. Dnet sums calibrated accepted net masses; M=Dnet/Naccepted, q_item=Qattr/Naccepted, q_ref=Qattr/Dnet. Qattr includes rejects/rework/factory tests; Dnet excludes packing/rejects/consumed trial charge. Preserve each native numerator unit.calibration/actual-period ledgers
species_samplingemissionsPost-control species concentration times matched same-period gas/liquid flow and duration with T/P/wet-dry/unit corrections; fugitives independently measured. Unknown residual not air release, capture not destruction; each metal/chemical/water term uses own assay/water fraction/density/stocks/reactions/paired returns.actual concentration/flow/period/state records
contained_assayphysical balancesEach input/product/scrap/sludge/liquid/release uses own measured gross mass times own assay and wet/dry basis; gross alloy/sludge is not contained metal. Every water term uses own water fraction and density at actual temperature, including product retention/reaction/evaporation/discharge/beginning-end stocks; internal returns pair/cancel.term-specific measurement/assay/moisture/stocks
solvent_fatessolvent recordsRecord recovered return/product retention/captured liquid or media/demonstrated destruction/wastewater separately. Recovered/retained/captured and wastewater/media are non-air fates; capture not destruction. Investigate unknown residual, never turn it into air release.actual material/sampling/abatement records
utility_residualenergyReconcile common-period imports plus actual generation minus exports/storage changes against fabrication/finish/integration/test/dispatch loads; shared row ONLY unassigned residual. Investigate negative residual against period/units/combined uncertainty without clipping.calibrated subprocess/site meters
heat_returnthermal interfaceGross heat equals measured supply kg times own MJ/kg minus independently measured return kg times return own MJ/kg, with common datum and actual T/P. Gross supply deducts return once; already-net bill never deducts again. Physical steam/condensate mass separate from heat; supplier boiler fuel not onsite combustion.separate supply/return metering/thermodynamic state/invoice
cohortall inventory rowsSame configuration/common period Qattr includes attributable reject/rework/test; Naccepted counts accepted complete parts; Dnet sums calibrated accepted net masses including actual supplied installed part components/retained fills/accessories, excluding packing/rejects/consumed test charge. M=Dnet/Naccepted; q_item=Qattr/Naccepted; q_ref=Qattr/Dnet. Preserve each numerator native unit and explicit conversion; no mixed configurations.calibrated net mass/supplied list/acceptance/cohort raw-period records
provider_gapslinksEach actual upstream/treatment matches state/geography/period; unverified not complete footprintdirect records/substitution disclosure

9. Validation Rules

rule_idApplies toRulesource_ids
identitydatasetConfirm dedicated part interface and host function for converter, ladle, ingot mould, casting machine or metal rolling mill, model/revision, delivered configuration and activated architecture. Every actual exchange needs matching identity/property/unit/provider; absent, zero and unknown remain distinct.
denominatorall inventory rowsAll inventory uses the same accepted cohort and common period. Verify calibrated accepted net mass and N; reject and packaging mass excluded. Check q_item=Q/N then normalization by same mean M; mixed configurations are invalid.
double_countmake_buyReconcile complete bought modules versus own materials and operations, retained fills/accessories versus factory consumption, paired internal transfers and external inputs. Count each actual burden once.
water_closephysical water recordsFor each term use its own measured water fraction, density and wet/dry basis: fresh and input moisture plus reaction water and beginning stocks minus final stocks, retained product, discharge and evaporation; internal returns cancel paired. Investigate measured closure against combined sampling/meter/allocation uncertainty; no universal tolerance.
species_closematerial and chemical recordsClose each contained metal/chemical separately using each input, product, scrap, sludge, liquid and release own matched assay and dry/wet basis, reaction stoichiometry and stocks. Gross mass is not contained element. No all-inventory mass rule applies to energy or transport.
solvent_closesolvent recordsDistinguish retained solvent, recovered return, captured liquid/media, demonstrated destruction, wastewater/non-air residual and actual species air release. Capture is not destruction; an unexplained residual must be investigated, not assigned to air.
utility_closeenergy recordsReconcile purchased imports, actual on-site generation, exports and storage changes with assigned fabrication/finish/integration/test/dispatch loads in the same period and units. Shared row ONLY unassigned residual; investigate negative residual against period, unit and combined measurement uncertainty without clipping.
steam_closesteam and condensateUse supply kg times supply own MJ/kg and return kg times return own MJ/kg at measured pressure/temperature relative to common zero. If gross supply, subtract return once; if already-net invoice, do not subtract again. Keep physical steam/condensate mass balance independent from energy.
species_emissionsair releasesValidate every emitted species and compartment independently. Fuel carbon balance cannot alone establish CO or NOx. NO2 mass is not NOx reported as NO2 equivalent; keep reporting conventions and actual species identities distinct.

10. Published Dataset Profile

FieldValue
dataset_roleprimary_dataset
downstream_usesecondary_dataset; background_dataset; process; lifecyclemodel
allowed_useActual configuration factory foreground production and models with explicit completed upstream links
excluded_useCross-family functional equivalence, default customer processing service, default weight/manufacturing factors, complete footprint with missing providers
required_metadataSection3 qualifiers, raw-period denominator, actual architecture/make-buy/boundary
required_quality_disclosurecollection coverage, provider/identity/recipe gaps, allocation/combined uncertainty, all conditions/exclusions
update_triggermodel/architecture/recipe/supply state/geography/measurement/factory-test/treatment changes

11. Data Sources

Source idTypeReferenceUsed for
danieli-converterhandbookNew converter commissioned for AG der Dillinger Hüttenwerke; undated actual body; original snapshot2026-10-02UTC; https://www.danieli-corus.com/news/new-converter-commissioned-for-ag-der-dillinger-huttenwerke/Product architecture/category boundary; not factory recipe or quantitative default
primetals-copperhandbookContinuous caster mold copper repair and coatings; undated actual body; original snapshot2026-10-02UTC; https://www.primetals.com/en/portfolio/solutions/continuous-casting/continuous-caster-mold-copper-repair-and-coatings/Product architecture/category boundary; not factory recipe or quantitative default
ues-cast-rollhandbookCast Steel Roll; ©2020 actual footer; https://www.uniones.com/wp-content/uploads/3-chrome_bur.pdfProduct architecture/category boundary; not factory recipe or quantitative default
ues-forged-rollhandbookForged roll cold mill work roll SHSS-II; ©2020 actual footer; https://www.uniones.com/wp-content/uploads/shss-ii.pdfProduct architecture/category boundary; not factory recipe or quantitative default
jr-ingot-partshandbookMS ingot mould and base plate products; undated actual body; original snapshot2026-10-02UTC; https://www.jrgroup.co.in/jr-ispat/ms-ingot-mould-ispat-productsProduct architecture/category boundary; not factory recipe or quantitative default
simplex-foundryhandbookSimplex Castings Annual Report 2018-19; Annual Report2018-19 actual cover and body; https://www.simplexcastings.com/public/asset/docs/investor/financials/ar/Simplex-Annual-Report-2018-19.pdfProduct architecture/category boundary; not factory recipe or quantitative default
primetals-rollerhandbookEco Fast Roller; undated actual body; original snapshot2026-10-02UTC; https://www.primetals.com/en/portfolio/solutions/continuous-casting/eco-fast-roller/Product architecture/category boundary; not factory recipe or quantitative default
primetals-roll-manufacturinghandbookContinuous caster roll manufacturing and reconditioning; undated actual body; original snapshot2026-10-02UTC; https://www.primetals.com/en/portfolio/solutions/continuous-casting/continuous-caster-roll-manufacturing-and-reconditioning/Product architecture/category boundary; not factory recipe or quantitative default
inducto-ladlehandbookLadle Slide Gate System 1QC and 2QC; undated actual body; original snapshot2026-10-02UTC; https://www.inductoconcastindia.com/ladle-slide-gate-system-1qc-%26-2qc.phpProduct architecture/category boundary; not factory recipe or quantitative default
foseco-flowhandbookMelt shop refractories and flow control; undated actual body; original snapshot2026-10-02UTC; https://www.foseco.com/en/products/refractory-linings-and-flow-controlProduct architecture/category boundary; not factory recipe or quantitative default
foseco-nozzleshandbookStoppers and nozzles for iron and steel foundries; undated actual body; original snapshot2026-10-02UTC; https://www.foseco.com/en/products/refractory-linings-and-flow-control/stoppers-and-nozzles-for-iron-and-steel-foundriesProduct architecture/category boundary; not factory recipe or quantitative default
jrc-smithery-foundryhandbookBest Available Techniques (BAT) Reference Document for the Smitheries and Foundries Industry; 2024 final BREF; https://bureau-industrial-transformation.jrc.ec.europa.eu/sites/default/files/2024-12/SF_BREF_2024-bref.pdfProduct architecture/category boundary; not factory recipe or quantitative default
jrc-metalworkinghandbookBest Environmental Management Practice in the Fabricated Metal Products sector; EUR 30025 EN, 2020; https://publications.jrc.ec.europa.eu/repository/bitstream/JRC119281/jrc119281_jrc_bemp_fabricated_metal_product_manufacturing_report.pdfProduct architecture/category boundary; not factory recipe or quantitative default
un-cpc-44320official_guidanceCentral Product Classification Version3.0 Explanatory Notes; Version3.0 30 June2025; https://unstats.un.org/unsd/classifications/Econ/Download/In%20Text/CPC_Ver_3.0_Exp_Notes_30Jun2025.pdfProduct architecture/category boundary; not factory recipe or quantitative default

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