How Do You Test The Difference Between Copper And Brass?
Although they are very different metals, copper and brass are often confused for each other. This can be problematic when it comes to scrapping, as they cannot go through the same recycling process and have very different values. In order to help you tell the difference between brass and copper, we have compiled 5 simple steps that you can follow. They should be simple enough for even everyday homeowners to undertake, so good luck!
1. Visual Inspection
The first thing you should do is take a good look at the item, as the metals are usually quite different colours. Copper is a reddish brown colour, whilst brass is a yellowish gold colour. As brass actually contains copper (as well as zinc), however, it can sometimes take on a more reddish colour depending how much of each substance it contains. If you’re unable to tell the difference visually, move onto the next step.
2. Unusual Markings
The next thing you can do is look for any unusual markings on the items, as brass usually has “codes” on it. The best place to look is on the end of rounds or hexes. Generally, these codes will begin with a “C” and be followed by at least 3 digits. If you don’t see any codes like this on the metal, then you’re more then likely dealing with copper. Sometimes, however, the markings may have been removed.
3. Hard or Soft
The next thing you can do is determine whether the item is hard or soft – simply knock it against something to see whether a dent forms. If the metal is soft, it’s copper. You will notice that it doesn’t take much effort to cause denting and other marks. If the metal is hard, it’s brass. You won’t really be able to cause any damage. Just note that the amount of each alloy can also play a role in how hard or soft the item is.
4. Comparison
It could also be an idea to compare the item with one that you know is made from copper, such as a penny. If the two look quite similar (in colour and texture), then it’s likely that they’re made from the same material. If they look quite different, it’s likely that the item is made from brass. Just ensure that both the items you’re comparing are clean to ensure that you get accurate results.
5. Expert Testing
If, after all this, you are still unsure about what type of metal the item is comprised of you can have it tested by an expert. It should be noted, however, that testing usually requires the item to be deformed so you should never attempt this if it doesn’t belong to you or if you need it to remain in the same condition. An expert might be able to tell you whether it’s brass or copper just by looking at it.
We hope that the 5 simple steps we have outlined above have enabled you to tell the difference between copper and brass. This can be incredibly useful when it comes to scrapping, as it will ensure that you save time at the recycling facility (as the metals will be pre-sorted) and that you’re receiving the correct value for the items at hand. If you’re still having trouble telling the difference between brass and copper, ensure that you seek assistance.