Filler Metal for welding of ASTM B148 C95800 1

• Aug 12, 2024

• #2

btrueblood

Mechanical

May 26, 2004

9,894

I'd have thought welding on an aluminum bronze would be a no-go due to oxidation and burn-off of the aluminum content...but the copper.org site suggests it's weldable.

A bit more info here:

https://www.twi-global.com/technical-knowledge/faqs/faq-how-can-i-weld-aluminium-nickel-bronzes

 

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• Aug 12, 2024

• #3

EdStainless

Materials

May 20, 2004

16,016

You can also find information at copper.org

= = = = = = = = = = = = = = = = = = = =
P.E. Metallurgy, consulting work welcomed

 

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• Aug 12, 2024

• #4

btrueblood

Mechanical

May 26, 2004

9,894

Ed's suggestion is right, look on copper.org:

https://copper.org/publications/pub_list/soldering.php

There is a document at the bottom of the page that talks about welding:

https://copper.org/publications/pub_list/pdf/a1050.pdf

and has some specific recommendations for Cu-AlNi bronzes...and post welding heat treatment.

 

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• Aug 12, 2024

• Thread starter
• #5

Karik87

Mechanical

Aug 24, 2021

16

@btrueblood @EdStainless
Thanks a lot for your guidance and advice. I'll look into that information.

 

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• Aug 15, 2024

• #6

bruv

Materials

Feb 19, 2002

239

We've been successfully welding C95800 for many years with ERCuNiAl consumables. Good luck.

 

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• Aug 15, 2024

• Thread starter
• #7

Karik87

Mechanical

Aug 24, 2021

16

@bruv,
Great! Many thanks bro. Is there any heat treatment required when welding @bruv? Can you please me more detail of it.

 

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• Aug 16, 2024

• #8

TugboatEng

Marine/Ocean

Nov 1, 2015

11,461

We contract our a lot of welding of NiBrAl and NiBrAlFe. From what I see, it welds a lot like cast aluminum. It's relatively ductile so it doesn't need much preheat or post heat. It does require a lot of heat due to thermal conductivity. Weld it with AC as you would aluminum.

However, OP is asking about aluminum bronze (no nickel). That might add a bit of challenge.

 

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• Aug 16, 2024

• #9

bruv

Materials

Feb 19, 2002

239

@Karik87

I don't think that PWHT is mandatory for this grade (I don't have the access to the books right now so I cannot confirm). We have one customer that requires PWHT for major repairs. Time and temperature are the same as the HT for the castings.

We weld with AC.

 

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