Welding of CuNi 70/30 to SA106

[prabhu]

Dear All,

Can anyone tell me which filler should be used for welding CuNi 70/30 to SA106. by using GTAW process.

[Karthik]

Hi,

The attached file might be useful to you.

 

Thanks & Regards,

(Karthik)

Karthikeyan.S

QA/QC Manager

German-Thai Boiler Engineering Cooperation Limited.

Rayong Factory ;

379 Moo.6 Soi 8, Tambol Pananikom,

Nikompattana, Rayong 21180 THAILAND

Tel : +66 38 897 035-9 Ext. 137

Fax : +66 38 897 034

Hand Phone: 0066 892512282

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From: prabhu <prabhuj...@gmail.com>
To: material...@googlegroups.com
Sent: Wednesday, October 9, 2013 10:38 AM
Subject: [MW:18886] Welding of CuNi 70/30 to SA106

Dear All,

Can anyone tell me which filler should be used for welding CuNi 70/30 to SA106. by using GTAW process.

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[c sridhar]

ER Ni Cu - 8 ( with 70 Ni & 30 Cu) could be used for welding Cupronickel (Cu Ni) to carbon steel.
Sulfur & Phosphorous should be kept at max. of 0.02% and with absence of Pb and additions of Mn .
will help to get crack free joints

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From: prabhu <prabhuj...@gmail.com>
To: material...@googlegroups.com

Sent: Wednesday, 9 October 2013 9:08 AM

Subject: [MW:18886] Welding of CuNi 70/30 to SA106

Dear All,

Can anyone tell me which filler should be used for welding CuNi 70/30 to SA106. by using GTAW process.

[Prakash Hegde]

Hi!

You can use ERNiCu7 or ER CuNi 90:10 consumables to weld CuNi 70:30 to CS

Regards

Hegde P.B.

From: prabhu <prabhuj...@gmail.com>
To: material...@googlegroups.com
Sent: Wednesday, 9 October 2013 9:08 AM
Subject: [MW:18886] Welding of CuNi 70/30 to SA106

[c sridhar]

For welding CU NI to Carbon steel

ERNiCu-7 (N04060)

Steel side may be       overlayed first with       SFA 5,7   ERNi-1 or       SFA 5.14 ERNiCu-7

 

The 70-30 Cu-Ni welds have a limited tolerance for dilution by iron. Welds with more than about

10% iron tend to have excessive fissures and develop hot cracks. The ENiCu-7 and ERNiCu-7

fillers (65Ni-Cu) have a higher tolerance for iron and are used in joining Cu Ni to carbon steels.

Often a very useful step in making Cu-Ni dissimilar metal welds is to overlay or butter the other

metal with nickel, nickel-copper or any other appropriate filler wire. In applying Cu-Ni overlays on

steel, the usual practice is to apply a first layer with ERNi-1 or ERNiCu-7 and then ERCuNi for

subsequent layers. 

Sridhar

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From: prabhu <prabhuj...@gmail.com>
To: material...@googlegroups.com
Sent: Wednesday, 9 October 2013 9:08 AM
Subject: [MW:18886] Welding of CuNi 70/30 to SA106

Dear All,

Can anyone tell me which filler should be used for welding CuNi 70/30 to SA106. by using GTAW process.

[prabhu]

Thanks to all 

I am going to weld with ER Ni-1 for buttering and remaining by ER NiCu-7 

and late you know the test result. 

[Ankit Gandhi]

Dear sir,
Will you tell me technique to identify cut back area.
As we are doing CuSO4 for SS clad plate is there any similar method available for cupronickel clad plate to identify clad removal of cu.

Regards,
Ankit Gandhi

[Prakash Hegde]

Hi!

Use copper sulphate soln only as it reacts with CS gives pink indication on cs surface which ensures contamination free surface

Regards

Hegde

Sent from Yahoo Mail on Android

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