Brass — a Metal Worth Your Attention
When you replace a water, heating or gas installation, the construction site is left with dozens of kilograms of scrap that at first glance looks like ordinary iron junk. In reality, ball valves, tee fittings, connectors, reducers, nipples and tap bodies are often made of brass — an alloy of copper and zinc that fetches a significantly higher price at non-ferrous metal scrap yards than cast iron or steel. It is worth knowing how to identify it and how to prepare for the sale, so you don't hand over a valuable material for a fraction of its worth.
What Exactly Is Brass and Where Does It Come From in Installations?
Brass is an alloy of copper and zinc, most commonly in a ratio of 60–70% Cu and 30–40% Zn, although the composition can vary depending on the grade. Fitting manufacturers choose it for its corrosion resistance, ease of machining and the tightness of connections. In a typical domestic installation, you will find brass primarily in:
- ball valves and globe valves,
- threaded and compression fittings,
- brass tees, elbows and reducers,
- thermostatic heads and tap bodies,
- nipples, saddle clamps and hose end fittings,
- certain types of meters and water counters.
Beyond sanitary installations, brass reaches scrap yards from mechanical workshops, old machinery, door and window hardware, and even musical instruments. Each of these sources represents a potential profit — provided the material is correctly identified.
How to Identify Brass — Practical Methods
Colour and Shine
Clean brass has a characteristic golden-yellow colour, warmer than aluminium and clearly different from the rusty tint of steel. When oxidised, it darkens to bronze or olive green (patina), but after rubbing with sandpaper or a file it regains its golden shine. This is the simplest method of initial identification in the field.
Specific Weight
Brass weighs approximately 8.4–8.7 g/cm³. In practice, this means that a small ¾-inch ball valve weighs between 150 and 300 grams — considerably more than one might expect from its size. If a component surprises you with its weight, that is a good sign.
Magnet Test
Brass is non-magnetic. A neodymium magnet held against a fitting will not stick — unlike steel and cast iron. This is a quick, cost-free test that allows you to distinguish brass from iron imitations used in cheaper fittings.
File Scratch
Brass is soft and easy to work. A few strokes of a file on the edge of a component will reveal a uniform, golden-yellow material throughout the entire cross-section. If the interior is grey or rusty, you are dealing with a cast iron or steel casting with a brass galvanic coating — such a component will be classified as ferrous metal, not non-ferrous.
Manufacturer Markings
Some fittings are marked with a grade symbol: CW614N, CW617N and Ms58 are common designations for plumbing brass. If such an abbreviation is visible on a component, you can be certain of the material.
How Much Does Typical Fittings Hardware Weigh and How Does That Translate Into Money?
Before travelling to the scrap yard, it is worth making your own estimates. Approximate weights of common components:
- Ball valve ½" — approx. 100–180 g
- Ball valve ¾" — approx. 180–320 g
- Ball valve 1" — approx. 300–500 g
- Brass tee ½" — approx. 80–150 g
- Brass reducer — approx. 60–120 g
- Brass nipple — approx. 30–80 g
When replacing an entire central heating installation in a detached house, it is easy to collect 10–25 kg of brass alone. At current non-ferrous metal prices, this translates into a real sum that is worth collecting rather than throwing the scrap into a construction waste skip.
Brass prices are variable and depend on metal exchange quotations (London Metal Exchange), the material fraction (clean, contaminated, mixed) and its purity. It is best to check the current price list directly at the scrap yard — at EURO-SCRAP, valuation is carried out on a certified scale and the rate is provided at the point of purchase.
How to Prepare Fittings Before Taking Them to the Scrap Yard?
Material Sorting
The most important step is to separate brass from other metals. Brass fittings go into one bag, while cast iron or steel installation components go into another. Mixing reduces the valuation of the entire batch, because the scrap yard operative has to account for contamination of the load.
Removing Non-Metal Components
Before handing in the material, it is worth unscrewing or cutting off rubber seals, PTFE inserts and plastic handles. This is not mandatory — the scrap yard will deduct the weight of contaminants — but clean brass is valued more favourably than contaminated brass.
Connection Cables
If you are also replacing wiring or cables along with the fittings, sort them separately. Copper electrical wiring is a different material, purchased under a different category. You can find more about cable valuation in our copper and aluminium cable scrap price list.
Documentation and Formalities When Selling Scrap
The sale of non-ferrous scrap metal requires presentation of a valid identity document — this is a legal requirement under the Act on Counteracting the Placing on the Market of Non-Ferrous Metal Products. The transaction is recorded, and for larger quantities of material the purchasing company issues a waste acceptance document within the BDO system (Waste Database). For corporate clients and renovation contractors, we issue appropriate documents confirming the transfer of waste, which is particularly important when settling investments and for environmental audits.
Where to Sell Brass from Fittings in Poznań and the Greater Poland Region?
EURO-SCRAP operates non-ferrous metal purchasing points at several locations throughout the Greater Poland region. If you are based in Poznań or the surrounding area, we invite you to visit our facility — scrap metal Poznań serves both individual customers with a few kilograms of fittings and renovation companies with larger batches of scrap.
Contractors operating in the western and north-western parts of the agglomeration are encouraged to visit the facility at scrap metal Tarnowo Podgórne, while customers from southern Greater Poland can use scrap metal Mosina. We also serve customers from Września and the surrounding area — the scrap metal Września facility accepts both non-ferrous metals and steel scrap.
Summary — Brass Is Money, Not Waste
Brass fittings replaced during installation renovations are a valuable secondary raw material that far too often ends up in rubble skips instead of non-ferrous metal scrap yards. Several kilograms of valves, connectors and tees can yield tens or even hundreds of złoty — all it takes is correct identification, proper sorting and a trip to the scrap yard. Valuation on a certified scale and current market metal prices make the transaction transparent and worthwhile for both parties. Before you throw away old pipes and valves — check what you actually have in your hands.
