How to distinguish stainless steel seamless elbows from stainless steel seamed elbows? There are 4 common methods. Let’s learn about them with Licheng Steel!
1. Appearance distinction
By observing the appearance of the two, the inner and outer walls of the seamless elbow are smooth and have no welds, while the inner and outer walls of the seamed elbow have welds. This is a preliminary judgment method.
2. Wall thickness distinction
By measuring the wall thickness of the two, the wall thickness of the seamless elbow is uniform, while the wall thickness of the seamed elbow may be thinner due to welding.
3. Check the quality certificate
If it is a regular manufacturer, it will provide a quality certificate, through which we can quickly distinguish it.
4. Pressure test
Through the pressure test, the pressure resistance of the seamless elbow is better than that of the seamed elbow.