Most sellers leave money on the table — not because aluminum prices are low, but because they don't know which grade they're holding. Tossing mixed aluminum into one bin and hoping for the best is the single most expensive mistake in scrap metal selling. If you're in Hamilton or anywhere across Ontario, understanding aluminum scrap grades isn't optional — it's the difference between a fair payout and a frustrating one.
This guide breaks down the main aluminum grades, what buyers actually pay for each, and how platforms like Canada's B2B scrap recycling marketplace are changing how sellers get competitive prices — without the guesswork.
Why Aluminum Grades Matter More Than You Think
Aluminum isn't one material. It's a family of alloys, each with different chemical compositions, strengths, and market values. A smelter paying top dollar for clean 6061 extrusion won't pay the same rate for painted automotive castings — and they shouldn't. The composition is different. The processing cost is different. The end product is different.
When you sort your aluminum before selling, you give buyers confidence. Documented, sorted loads attract stronger bids. Mixed, unidentified loads get discounted — sometimes heavily — because the buyer is absorbing the risk of unknown contamination. That risk comes directly out of your payout.
Understanding the grades also helps you track your inventory properly. Scrap metal inventory management isn't just a business concept — it's a practical tool that puts more money in your pocket at weigh-in. If you're generating aluminum scrap regularly, keeping grades separated from the start costs you almost nothing and can add up to meaningful dollars per load.
The Main Aluminum Scrap Grades — Ranked by Value
Industry buyers use a mix of ISRI codes and common trade names. Here's a practical breakdown of what you're likely to encounter and how each grade generally stacks up in value.
1. Bare Bright Aluminum Wire (Highest Value)
This is the cleanest, highest-conductivity aluminum wire — uncoated, unalloyed, no insulation. It's rare in pure form but commands top prices when you have it. If you're pulling electrical wire from a demolition job or industrial site, stripping it properly and identifying the bare aluminum core is worth your time.
2. 6061 / 6063 Extrusion (High Value)
Window frames, door frames, structural extrusions, ladder rungs — this is common 6000-series aluminum. It's clean, consistent, and widely traded. Buyers like it because the alloy is predictable. Separate it from painted or anodized pieces when you can. Clean, uncoated extrusion fetches noticeably better rates than coated material.
3. MLC / Litho Sheets (High Value)
Clean aluminum sheet and litho plate — used in printing, HVAC panels, signage backing. No corrosion, no paint, no laminate. This material is straightforward to process and gets competitive bids because of that consistency.
4. Cast Aluminum (Mid-High Value)
Engine blocks, transmission cases, pump housings, marine hardware. Cast aluminum is heavier and denser than extrusion. It's dirtier by nature — oil, gasket material, iron inserts — but buyers know how to work with it. Clean castings with iron removed get better rates. If you're selling automotive castings in Hamilton, make sure the iron is pulled and the load is properly documented with photos.
5. Old Sheet Aluminum (Mid Value)
Roofing, siding, gutters, HVAC panels. This material is often painted, corroded, or contaminated with fasteners. It's still valuable — aluminum is aluminum — but expect a discount versus clean sheet or extrusion. Remove steel fasteners and screws where practical.
6. Painted / Coated Aluminum (Lower Mid Value)
Any aluminum with paint, powder coat, anodizing, or other coatings takes more processing energy. Buyers price in that extra cost. It's still worth selling — just don't expect extrusion prices.
7. Aluminum Turnings / Borings (Lower Value, Variable)
Machined aluminum chips and turnings from manufacturing operations. The value depends heavily on contamination — cutting fluid, oil, mixed alloys, and moisture all reduce the payout. Dry, single-alloy turnings fetch better rates. Wet, oily, mixed turnings get discounted sharply. If you're a machine shop generating turnings in Ontario, managing your coolant separation pays off at weigh-in.
8. Irony Aluminum / Dross (Lowest Value)
Heavily contaminated aluminum — mixed with steel, iron, or other non-ferrous metals, or aluminum dross from smelting operations. This is the bottom of the market. Don't mix clean material into this category by accident. That's exactly how sellers destroy the value of a good load.
How Sorting and Documentation Directly Affect Your Price
Here's the practical reality: a buyer bidding on a load they can't identify is going to bid conservatively. They don't know if your "cast aluminum" is clean 356 or a mix of iron-contaminated automotive scrap. So they assume the worst and price accordingly.
When you document your load — grade identified, photos taken, contamination disclosed, weights separated — buyers can bid aggressively. They're not pricing in uncertainty anymore. That's the mechanism behind better price discovery. More information. More competition. Better outcome for the seller.
Platforms like SMASH are built around this principle. Scrap metal inventory management tools, photo documentation, and serial tracking mean buyers across North America can evaluate your load before they bid. You're not calling one buyer and hoping they're having a good day. You're running a competitive process with vetted buyers who've seen the load, know what they're getting, and are motivated to win.
If you're looking to sell your scrap metal at fair Canadian prices, the sorting step isn't extra work — it's the most valuable hour you'll spend before weigh-in.
Aluminum vs. Steel: Understanding Today's Price Landscape
Sellers often ask about scrap metal prices today across all metals — and how aluminum compares to steel. The short answer: aluminum almost always commands a higher price per pound than steel. But the steel scrap price today matters to your overall operation because most mixed loads include both.
Steel prices fluctuate based on global demand — electric arc furnace activity, automotive production, construction sector health, and trade policy all move the needle. Aluminum prices track with primary aluminum production costs, energy prices, and end-use demand from automotive, aerospace, and packaging sectors.
In 2026, both markets have seen meaningful volatility. Sellers who understand which metal is moving and why are better positioned to time their loads. That's not speculating — it's basic market awareness. When you know that automotive aluminum demand is strong or that regional steel mills in Ontario are running hot, you can make smarter decisions about when to sell.
Checking scrap metal prices today before you book a pickup or list a load isn't optional — it's table stakes. Prices fluctuate daily based on commodity markets, regional demand, and freight conditions. Always verify current rates before committing to a sale.
Disclaimer: Metal prices change daily. The information in this article reflects general market dynamics and grade hierarchies, not current spot prices. Always verify today's rates directly with buyers or through a platform before selling.
How SMASH Helps Hamilton Sellers Get Competitive Aluminum Prices
The old way of selling aluminum scrap in Hamilton was simple: call your regular buyer, get a number, take it or leave it. You had no idea if that number was fair. You had no leverage. You had one option.
SMASH breaks that dynamic. When you list a documented aluminum load — grade identified, photos attached, weights confirmed — vetted buyers compete for it. That competition is the engine of fair price discovery. You're not guessing what your 6061 extrusion is worth. The market tells you, in real time, through competitive bids.
There are no subscription fees. SMASH only wins when the seller wins. For Hamilton yards and individual sellers generating regular aluminum loads, that alignment matters. You're not paying a platform fee to access buyers — you're accessing buyers because the platform benefits when you get a good price.
For businesses managing multiple grades across multiple loads, SMASH's inventory tools let you track material by grade, document each lot with photos, and build a clean transaction history. That history builds buyer confidence over time. Repeat sellers with documented track records attract stronger bids.
Whether you're clearing an estate with mixed aluminum, running a demolition job in Hamilton, or operating a yard in Ontario with regular non-ferrous throughput, get a fair price for your scrap today by starting with a properly sorted, documented load.
You can also explore scrap metal selling guides to go deeper on specific materials, grades, and selling strategies across Canada.
For Hamilton-specific service, including pickup and valuation support, check out the Hamilton scrap metal services page to get started.
Practical Tips Before You Sell Aluminum Scrap
- Sort by grade before you weigh. Even rough sorting — extrusion separate from cast, clean separate from painted — improves your outcome.
- Remove iron and steel contamination. Ferrous metal in a non-ferrous load is a direct discount. Use a magnet and pull anything that sticks.
- Photograph everything. Buyers who can see the load bid with more confidence. More confidence means stronger bids.
- Dry your turnings. Wet turnings mean you're paying to transport water and getting paid for aluminum. Drain and dry before selling.
- Check current rates. The steel scrap price today and aluminum prices both move. Know the market before you commit.
- Use a competitive process. One buyer, one phone call, one offer is not price discovery. It's hope. Competitive auctions through platforms like SMASH give you actual market data.
Ready to sell smarter? Start by sorting your aluminum, documenting your load, and connecting with vetted buyers who compete for your material. Selling scrap in Hamilton — or anywhere across Ontario — doesn't have to mean guessing what your load is worth.
Sell your scrap metal at fair Canadian prices and request a pickup at sell-scrapmetal.ca. Your sorted, documented load deserves competitive bids — not a single take-it-or-leave-it offer.
Frequently Asked Questions
Q: What aluminum grade is worth the most at a scrap yard?
Clean, uncoated 6061 or 6063 extrusion and bare aluminum wire consistently fetch the highest prices. The cleaner and more consistent the alloy, the stronger the bids. Contamination — paint, iron inserts, coatings — reduces value in every grade.
Q: How do I know what grade my aluminum scrap is?
Start with visual and physical clues: extrusion is usually thin-walled and uniform; castings are heavier and often have rough surfaces; sheet is flat and thin. A magnet test confirms there's no ferrous content. If you're unsure, document what you have with photos and let a vetted buyer assess it — that's exactly how SMASH works.
Q: What is the steel scrap price today in Hamilton, Ontario?
Steel scrap prices fluctuate daily based on mill demand, commodity markets, and regional conditions. Prices in Hamilton and across Ontario can vary from yard to yard. Always check current rates directly with buyers or through a competitive platform before selling — never rely on prices quoted days or weeks ago.
Q: Can I sell mixed aluminum and steel together?
You can, but you'll get paid at the lower rate for the entire mixed load. Separating ferrous from non-ferrous before selling almost always results in a better combined payout. The extra sorting time is usually worth it, especially on larger loads.
Q: How does SMASH help me get better prices for aluminum scrap in Canada?
SMASH connects sellers with vetted buyers across North America through a competitive auction format. When multiple buyers compete for your documented load, price discovery improves. No subscription fees — SMASH earns when you sell, which means the incentive is aligned with getting you a fair market price.
Stay current on scrap metal market movements and selling strategies — follow SMASH on LinkedIn for industry updates, aluminum price trends, and practical insights for sellers across Canada.