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SS Overlay 4130

SS Overlay 4130

(OP)
Hai Guys,

I need to qualify WPS for SS Weld Overlay in 4130 material.We are using SMAW & MIG also..Which type of electrodes are using in this process..I think For SMAW Electrode should be E 309 Mol-16 + E 316l-17....Is it Right or not?
Can anyone suggest me the mig filler wire for SS Overlay in 4130 material

RE: SS Overlay 4130

Yes, look at AWS SFA 5.9. Are you depositing 316L as the corrosion resistant overlay (CRO)? What code are you working under for qualification of the WPS? The reason is that for CRO certain codes have specific requirements for qualification of the welding procedure.

RE: SS Overlay 4130

(OP)
Hi,

I am following asme sec ix..Can you suggest me the MIG filler wire used for ss weld overlay in 4130 material.

RE: SS Overlay 4130

SFA 5.9, ER309LMo and ER316L

RE: SS Overlay 4130

The GMAW process will produce a higher hardness in the 4130 material. Take extra precaution regarding preheat for the initial layer.

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