When it comes to our work on ERW tubes, only the finest of results are acceptable. With over 200 different sizes available from us and a cutting service that is handy when you can’t find the one that suits you, our company is one of versatility. No matter how big or small your order, we will deliver it to you.
As manufacturers of high-end tubing, testing our alloys to see if they are sufficient is crucial to retaining our standards. As part of a quality control procedure, the hardness of our tubes is measured. Not only do these tests take up a short amount of time and money, but the speed at which we examine our products in no way compromises their integrity.
What hardness is in this respect is the potential of a material to stand against surface scratching or indentation. This isn’t a fundamental property of the used substance, so the extent of the hardness changes according to the testing strategy that’s used. As such, a host of unique tests exist and the decision to use a certain one depends on the alloys that are utilised.
The rudimentary principle is that hardness is calculated from an indentation created in the material by implementing a sustained load on a determined indenter in contact with the element’s surface for a specific amount of time. When examining small diameter or thin walled tubes, approaches such as the Rockwell test aren’t appropriate. This is because the heavy loads will most assuredly distort the surface or punch holes through the walls.
At Union Steel Tubes we test every single one of the ERW tubes that we manufacture to make sure that they conform to the high standards that are expected of an ISO 9001 Registered Business. Once your order has been placed, in stock items are typically delivered within the next day, but same day delivery is possible for urgent situations if the conditions are right.
If you have any questions about our services, we’d be happy to answer them for you.