How to Test Scrap for Magnetic Properties

If you work in metal recycling or run an industrial unit, one of the first steps in handling scrap metal is figuring out what type of metal you have. Magnetic testing is a simple, practical way to do this. Knowing whether a scrap piece is magnetic or not helps you sort ferrous metals (like steel and iron) from non-ferrous metals (like aluminium, copper, and brass), which can affect both recycling efficiency and the price you get for your scrap.

Why Is Testing Scrap for Magnetism Important?

Testing scrap for magnetic properties isn’t just a “nice-to-do”—it’s essential. Magnetic metals (ferrous) are usually heavier and more common, while non-magnetic metals (non-ferrous) are often more valuable. Separating them correctly:

• Boosts recycling efficiency – Metal recyclers process materials faster when properly sorted.
• Ensures safety – Some machinery or processes are designed specifically for ferrous or non-ferrous metals.
• Maximises revenue – Non-ferrous metals typically fetch higher prices, so correct identification prevents losses.

Even a quick magnet test can save time and money in your recycling process.

What Tools Can You Use to Test Scrap Metal?

The easiest way to test metals for magnetism is a simple handheld magnet. But depending on your operation size, you might also consider:

• Magnetic separation machines – Large industrial magnets that separate ferrous metals automatically.
• Magnetic pick-up tools – Handy for smaller scraps in bins or on the shop floor.
• Magnet sticks – A practical, low-cost option for sorting metals in tight spaces.

Even small workshops benefit from keeping a strong magnet on hand—it’s quick, easy, and requires no power.

How to Perform a Magnetic Test

Testing scrap metal for magnetic properties is straightforward:

1. Pick a clean scrap piece – Remove any dust, oil, or debris.
2. Bring the magnet close – Slowly move the magnet toward the metal.
3. Observe the reaction –
   • If the metal sticks to the magnet, it’s ferrous.
   • If the magnet doesn’t stick, it’s likely non-ferrous.

It’s that simple. For tricky cases, like stainless steel, remember that some types are weakly magnetic. You might need a stronger magnet or additional testing to confirm.

Tips for Accurate Magnetic Testing

• Test multiple points on irregularly shaped scrap. Some metals have coatings or alloys that affect magnetism.
• Keep your magnets clean—they lose strength if covered in metal dust or grime.
• Combine magnetic testing with visual inspection: colour, weight, and surface finish can also indicate metal type.
• Train staff to handle magnets safely. Strong magnets can pinch fingers or attract metal pieces unexpectedly.

These small precautions help ensure your sorting is fast, safe, and accurate.

What Happens After You Test Your Scrap?

Once you’ve identified magnetic and non-magnetic metals:

• Sort and store – Keep ferrous and non-ferrous metals in separate bins.
• Prepare for recycling – Remove any contaminants like plastics, wires, or oil.
• Contact a licensed metal recycler – They’ll handle processing, transport, and payment.

Correct sorting at your facility reduces handling time and maximises returns when selling scrap.

Testing scrap for magnetic properties is quick, cost-effective, and a vital step in efficient metal recycling. Whether you’re dealing with industrial scrap, construction offcuts, or automotive metal, a simple magnet can help you identify, sort, and prepare your metals for recycling—and get the best value from them.

Now we provide our metal recycling service in Mernda Victoria 3754.

Contact Us

Galaxy Metals

9 Mezzo Walk, Greenvale VIC 3059

0413 176 223

www.galaxymetals.com.au