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Can we use Duplex SS fasteners with SS 31726 sheets?

We manufacture equipment working in seawater.

We have been using SS31726 material for fabrication of our systems. We have recently encountered serious difficulties in procuring this material fasteners. We are however, able to procure the plates of this material.

We understand that Duplex material fasteners availability is better. Hence, our question as to whether we can use the DUPLEX material with SS 31726.

If yes, Is there a UNS specification of the matching DUPLEX?

Advice solicited.

Sanjay Pillarisetty
- Baroda, Gujarat, India
2006

2006

You can certainly use duplex stainless steel fasteners.

Which of the many grades of duplex stainless steel do you wish to use? For us to give you the UNS number, you have to tell us what material you're talking about - maybe a trade name, or chemistry, or a generic name - something that we can use to know which alloy you want.

Bill Reynolds [deceased]
consultant metallurgist - Ballarat, Victoria, Australia
We sadly relate the news that Bill passed away on Jan. 29, 2010.

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