Aluminum Nodules Scrap consists of small pieces of aluminum produced through chopping, shredding or specialized wire-processing operations. In the recycling industry, these materials may also be called aluminum chops, straws or granules, depending on their origin, shape and commercial classification.
Under ReMA/ISRI scrap specifications, qualifying electrical-conductor aluminum chops are classified as Tall, while the separate Tank grade covers clean aluminum chops and straws meeting a different minimum aluminum-content requirement. Their value depends on verified metal content, particle size, cleanliness and buyer specifications.
Aluminum Nodules Scrap: Quick Facts
- Material category: Nonferrous aluminum scrap
- Material form: Chopped or shredded aluminum particles
- Typical source: Aluminum wire and cable processing
- ReMA/ISRI Tall: E.C. Aluminum Chops and Straws
- ReMA/ISRI Tank: Aluminum Chops and Straws
- Tall minimum aluminum content: 99.45%
- Tank minimum aluminum content: 99.00%
- Minimum particle-size requirement: Free of minus-20-mesh material under both specifications
- Principal contaminants: Iron, copper, insulation, wire screening, hair-wire and other foreign materials
- Typical buyers: Specialized nonferrous processors, aluminum recyclers and secondary aluminum consumers
What Are Aluminum Nodules?
Aluminum nodules are small metal pieces produced when aluminum-containing feedstock is chopped or shredded into shorter lengths. They are commonly associated with industrial wire and cable recycling operations.
Depending on the original material and processing equipment, the resulting particles may resemble short pieces of wire, small metallic granules or elongated fragments.
Clean aluminum chops can be recovered as secondary aluminum feedstock. However, particles containing copper, iron, insulation, fine dust or other foreign material may require additional processing before they qualify for a high-purity scrap grade.
Important distinction: Aluminum nodules are not automatically the same as aluminum turnings, borings, grindings or shredded mixed aluminum. These material streams are generated by different processes and may have different purchasing specifications.
ReMA/ISRI Aluminum Nodules Specifications: Tall and Tank
The Recycled Materials Association (ReMA) maintains the ISRI Specifications used as reference descriptions in commercial recycled-material transactions.
Two recognized aluminum specifications are relevant to materials commonly described as aluminum nodules.
Tall: E.C. Aluminum Chops and Straws
Tall applies to qualifying chopped or shredded electrical-conductor aluminum, commonly called E.C. aluminum.
The specification identifies 1350 and/or 1050 alloy material and requires a minimum aluminum content of 99.45%.
The material must meet specified cleanliness and particle-size requirements, including the exclusion of copper, iron, insulation, wire screening, hair-wire and other foreign contamination.
This grade is particularly relevant to appropriately processed electrical-conductor aluminum wire and cable.
Tank: Aluminum Chops and Straws
Tank covers clean aluminum chops and straws with a minimum aluminum content of 99%.
It has similar restrictions on foreign contamination and undersized particles but does not use the same specified E.C. alloy and 99.45% purity requirements as Tall.
Tank should therefore be treated as a separate commercial grade rather than another name for Tall.
Specification note: The exact receiving requirements and any agreed variations must be confirmed with the buyer. The trade codes do not establish a universal purchase price or guarantee that a shipment will be accepted without inspection.
Tall vs. Tank Aluminum Nodules: Key Differences
| Requirement | Tall | Tank |
|---|---|---|
| Material category | E.C. aluminum chops and straws | Aluminum chops and straws |
| Specified alloy | 1350 and/or 1050 | No equivalent E.C. alloy restriction stated |
| Minimum aluminum | 99.45% | 99.00% |
| Fine particles | No minus-20-mesh material | No minus-20-mesh material |
| Contamination | Specified foreign materials excluded | Specified foreign materials excluded |
The higher stated purity requirement for Tall does not automatically mean every Tall shipment will receive a higher price than every Tank shipment. Prices depend on buyer requirements, material condition and market circumstances.
What Does 99.45% Aluminum Content Mean?
The 99.45% requirement in the Tall specification refers to the minimum aluminum content of qualifying material. It is a composition requirement, not a guarantee that every visibly clean aluminum particle meets the specification.
A material stream containing insulation fragments, copper contamination or unsuitable aluminum alloys may fail the buyer's requirements even when the particles appear clean.
For commercial evaluation, processors may review production records, the original feedstock and representative material testing.
Important: Material content should not be estimated solely from color, particle shape or the fact that the source was an electrical cable.
Common Sources of Aluminum Nodules Scrap
Aluminum nodules are most closely associated with industrial operations that reduce aluminum wire or cable into smaller particles.
- Wire recycling facilities: Chopped aluminum conductor material produced during cable processing
- Cable manufacturers: Suitable clean conductor offcuts processed into short lengths
- Electrical equipment recyclers: Aluminum conductors recovered from qualifying equipment
- Metal separation facilities: Sorted aluminum fractions from controlled processing operations
- Industrial aluminum processors: Chopped material generated from identified aluminum feedstock
The source does not automatically determine the grade. Material originating from mixed-alloy wire, aluminum-steel reinforced conductors or insulated cable may require additional separation and testing.
How to Identify Aluminum Nodules Scrap
Accurate identification requires attention to both the metal composition and the physical condition of the material.
- Identify the feedstock: Determine whether the nodules originated from E.C. aluminum wire or another aluminum source.
- Confirm the processing method: Distinguish chopped conductor particles from machining turnings, grinding residues and mixed shredded metal.
- Check alloy information: Use material documentation or suitable analysis to establish composition where required.
- Inspect foreign metals: Look for copper, iron and other metal contamination.
- Check insulation separation: Identify plastic, rubber, paper and other residual cable materials.
- Assess particle size: Confirm whether the material contains prohibited fines.
- Check condition: Note oxidation, moisture or other contamination that may affect acceptance.
- Verify the buyer's specification: Obtain confirmation of Tall, Tank or another applicable purchasing category.
Identification tip: A magnet may help detect some ferrous contamination but cannot verify aluminum purity or eliminate the possibility of copper or nonmagnetic foreign materials.
What Contaminates Aluminum Nodules?
Copper Contamination
Copper can enter a chopped aluminum stream when mixed-conductor materials are processed together or separation equipment does not adequately isolate the metals.
Iron and Steel
Ferrous contamination may originate from reinforced conductors, steel attachments, equipment wear or mixed feedstock.
Insulation and Nonmetallic Material
Residual plastic, rubber, paper and insulation can reduce the recoverable aluminum fraction and affect processing requirements.
Hair-Wire and Wire Screening
Very fine wire fragments and screening material are excluded from the Tall and Tank specifications.
Undersized Fines
Both specifications require material to be free of particles passing through a 20-mesh screen. Fine particles should be assessed separately rather than automatically blended into a qualifying nodule shipment.
Moisture, Oil and Other Residues
Excess moisture or processing residues may create handling, storage and melting concerns. Buyers may establish additional condition requirements for these materials.
Aluminum Nodules vs. Turnings, Shavings and Grindings
Several aluminum scrap streams consist of small particles, but their commercial descriptions differ.
| Material | Typical Origin | Key Distinction |
|---|---|---|
| Aluminum nodules / chops | Chopping or shredding aluminum feedstock | May qualify as Tall or Tank |
| Aluminum turnings | Lathe and machining operations | Often curled or irregular machining chips |
| Aluminum shavings | Cutting and machining operations | May contain cutting-fluid residues |
| Aluminum grindings | Grinding and abrasive processes | Fine material that may contain abrasives |
Do not mix these streams without buyer approval. A fine machining or grinding fraction cannot automatically be classified as clean aluminum chops merely because it contains aluminum.
Aluminum Nodules Scrap Prices
Aluminum nodule prices depend on verified aluminum content, particle-size distribution, contamination, shipment consistency and the receiving buyer's processing requirements.
Material qualifying for Tall or Tank may receive different commercial terms from mixed aluminum, ordinary wire scrap, turnings or shavings.
What Determines the Buying Price?
- Aluminum purity: The verified metal content and applicable Tall or Tank requirement
- Feedstock alloy: E.C. aluminum versus other aluminum compositions
- Contamination: Iron, copper, insulation and other foreign materials
- Particle size: Compliance with the applicable fines restriction
- Moisture and condition: Storage condition and any additional buyer requirements
- Quantity: Consistent commercial lots may support different pricing arrangements
- Market conditions: Aluminum markets and secondary-metal demand
- Transportation: Location, packaging, loading and freight costs
Available Aluminum Nodules Scrap Prices
Review RecyclingMonster's available price records below only when they are specifically mapped to aluminum nodules or an agreed equivalent grade. Confirm the reporting date, grade, currency, location and weight unit.
price
For general aluminum market context, use RecyclingMonster Aluminum Scrap Prices. General aluminum averages are not Tall- or Tank-specific quotations.
A dedicated current nodule price should not be inferred from unrelated aluminum grades.
How to Sort and Prepare Aluminum Nodules for Recycling
Preparation should preserve the material's grade while limiting unnecessary handling and contamination.
- Separate feedstock: Keep identified E.C. aluminum chops separate from other aluminum particles where required.
- Prevent mixed-metal contamination: Avoid combining aluminum nodules with copper, steel or other scrap.
- Maintain insulation separation: Use appropriate industrial processing and quality controls.
- Control fines: Confirm the buyer's particle-size specification and manage undersized material separately.
- Keep material reasonably dry: Prevent rainwater and excessive moisture from entering storage containers.
- Control unrelated residues: Avoid excessive dirt, oil, plastics and shop-floor contamination.
- Document the material: Record feedstock type, alloy information, production lot and shipment weight.
- Confirm commercial terms: Obtain the buyer's grading, sampling, packaging and payment requirements before shipment.
Safety note: Small aluminum particles and fines can create dust and fire hazards under certain conditions. Do not burn, grind or melt aluminum nodules informally. Industrial preparation and storage should follow appropriate combustible-metal and workplace safety procedures.
How Are Aluminum Nodules Recycled?
Suitable aluminum nodules can be used as feedstock in secondary aluminum processing when the material meets the receiving facility's composition and cleanliness requirements.
A typical commercial recovery process may include:
- Receiving and inspection: Material is weighed and checked against the agreed specification.
- Sampling and composition checks: Aluminum content and contaminants are assessed where required.
- Separation: Unacceptable metals and nonmetallic contamination are removed.
- Particle-size control: Material is screened or otherwise evaluated for compliance with the agreed grade.
- Processing preparation: Material is prepared for the receiving facility's chosen recovery route.
- Controlled melting: Suitable feedstock is processed using appropriate industrial equipment.
- Alloy control: Recovered aluminum is managed to meet downstream chemical specifications.
- Product manufacturing: Secondary aluminum is used in suitable metal products.
Not every shipment follows all these steps, and aluminum nodules do not automatically become new electrical-conductor wire. The final use depends on composition, recovery quality and customer specifications.
Where Can You Sell Aluminum Nodules Scrap?
Aluminum nodules may be purchased by specialized nonferrous scrap processors, wire-recycling companies and secondary aluminum consumers.
Not every general scrap metal yard purchases aluminum chops as a separate grade. Facilities may require minimum quantities, known alloy composition or testing before accepting processed aluminum particles.
yards
Use the RecyclingMonster Scrap Materials Guide and Aluminum Scrap Price Database to research related material categories and potential market comparisons.
Always contact a potential buyer before delivery to confirm acceptance of Tall, Tank or another specified chopped aluminum grade.
Bulk Aluminum Nodules: Commercial Buying and Selling
Wire processors, cable recyclers and industrial aluminum recovery facilities may generate regular quantities of aluminum chops and nodules.
For bulk shipments, confirm:
- Acceptance under Tall, Tank or another written specification
- Original aluminum feedstock and alloy identification
- Required aluminum-content percentage
- Maximum permitted copper, iron and nonmetallic contamination
- Particle-size and fines restrictions
- Sampling, laboratory testing and rejection procedures
- Moisture and storage requirements
- Packaging, bulk containers and loading arrangements
- Minimum quantity and shipment frequency
- Pricing basis, deductions and settlement conditions
- Transportation responsibilities and insurance
- Payment terms and material documentation
Well-documented and consistently processed loads can help buyers evaluate the material efficiently. Higher purity or better sorting does not automatically guarantee a higher net return after preparation, testing and transportation costs.
Frequently Asked Questions About Aluminum Nodules
What are aluminum nodules?
They are small chopped or shredded aluminum particles, commonly produced during wire and cable processing. Qualifying material may be traded as aluminum chops and straws.
What is the ReMA/ISRI code for aluminum nodules?
Tall covers qualifying E.C. aluminum chops and straws, while Tank covers clean aluminum chops and straws under a different minimum aluminum-content requirement.
What is the difference between 99% and 99.45% aluminum nodules?
Tank requires at least 99% aluminum, while Tall requires at least 99.45% and specifies 1350 and/or 1050 electrical-conductor aluminum.
Are aluminum nodules the same as aluminum turnings?
No. Nodules or chops commonly come from wire-processing operations, while turnings are generated during machining. They may have different scrap specifications and contamination profiles.
How much are aluminum nodules worth per pound?
There is no universal buying price. The accepted grade, aluminum content, contamination, particle size, location and reporting date determine the relevant quotation.
Related Aluminum Scrap and Recycling Resources
Compare aluminum nodules with other aluminum scrap forms and explore RecyclingMonster's verified market resources.
Material information notice: Aluminum scrap classification, metal content, particle-size requirements, purchasing prices and recycler acceptance vary by buyer and location. ReMA/ISRI terminology is provided for educational reference. Final commercial grading and settlement terms depend on the applicable buyer-seller agreement.