gtzaki
Mechanical
- Oct 30, 2008
- 8
Hi
We had some parts made up specified to be made in 2205 Duplex. When the parts came, it looked good and we were very happy with the machining quality. However, I remembered from my experience with 2205 that it is magnetic and so I did a simple test and found that our parts are not magnetic. I've contacted the machining company and they sent us an inspection certificate for UNS S31803 material which they claimed they used to machine the parts up.
So my question is, is UNS S31803 magnetic? I understand that duplex is partly ferritic and should be magnetic, but I don't know whether there might be a slight difference between the 2205 I had previously and the one they supplied.
Also, is there an easy/cheap/non-lab way to find out whether the part is in fact some inferior SS? My boss suggested comparing hardness, any other ideas?
Best regards,
Zaki
Norzaki Mizan
Geoteknic Pty Ltd
QLD, Australia
We had some parts made up specified to be made in 2205 Duplex. When the parts came, it looked good and we were very happy with the machining quality. However, I remembered from my experience with 2205 that it is magnetic and so I did a simple test and found that our parts are not magnetic. I've contacted the machining company and they sent us an inspection certificate for UNS S31803 material which they claimed they used to machine the parts up.
So my question is, is UNS S31803 magnetic? I understand that duplex is partly ferritic and should be magnetic, but I don't know whether there might be a slight difference between the 2205 I had previously and the one they supplied.
Also, is there an easy/cheap/non-lab way to find out whether the part is in fact some inferior SS? My boss suggested comparing hardness, any other ideas?
Best regards,
Zaki
Norzaki Mizan
Geoteknic Pty Ltd
QLD, Australia