Dura Bar is cancelling production of Ni-Resist bar stock

[HopkinsWesternValve]

Hello all,

Dura-Bar has stated they will no longer be manufacturing Type 1/2 Ni-Resist bar, and sourcing has become a problem as supplies dwindle. It sounds like there are many folks out there having this same issue.

Does anyone have any information regarding utilization of other materials as a substitute? Thank you in advance.

 

[TugboatEng]

What properties of Ni-Resist are important to your application?

 

[EdStainless]

20 years ago we were casting our own hollow bars as supply was problematic even then.
This is an austenitic gray cast iron. Good corrosion resistance, excellent dimensional stability, and non-magnetic.

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P.E. Metallurgy, consulting work welcomed

 

[HopkinsWesternValve]

Thank you for your responses.

Yes, along with the statement above from EdStainless "Good corrosion resistance, excellent dimensional stability, and non-magnetic" is usage as a bearing ring around solid nickel plated cylinders/trunnions. I believe a percentage of graphite within the material composition assists it's utilization as a bearing between different metals.

We are currently looking into two other options of ASTM 395 60-40-18 and ASTM 395 65-45-15 to assist with procurement of materials while continuing to meet required material specifications.

 

[TugboatEng]

So far, with the information you have given, Graphalloy would be an ideal replacement if you can tolerate the price.

https://www.graphalloy.com/

 

[HopkinsWesternValve]

TugboatEng, thank you for the lead. I will give them a call and check it out. Much appreciated.

 

[DAVIDSTECKER]

https://www.stainlessfoundry.com/metallurgy/alloys/niresist/

 

[WKTaylor]

Do you have a UNS alloy number for the material you were buying?... or similar-too UNS number??

Regards, Wil Taylor
o Trust - But Verify!
o We believe to be true what we prefer to be true. [Unknown]
o For those who believe, no proof is required; for those who cannot believe, no proof is possible. [variation,Stuart Chase]
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[EdStainless]

F4700X (X=1, 4, 5, or 6) and F43030. There are a few grades so I am not sure which they are using.

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P.E. Metallurgy, consulting work welcomed