Re: [MW:13374] Failure Of Root bend test of Welding (CS to SS)

Dear HAREESH,

What was the welding position? If It was not 1G or 2G which on of the root samples failed (acc. to he test sketch in ASME Sec. IX)?

 

Regards

On Sat, Dec 31, 2011 at 8:35 AM, HAREESH K V <hareesh13h@gmail.com> wrote:

Dear Sir,

 

Advance happy new year to all.

 

I have done a PQR(As per ASME Sec ix) of 6", Sa106 GrB to Sa 312 TP 316L. One of the root bend of the same failed.

 

Consumable used: ErNiCr-3. 

 

Tesile strength T1=507 and T2=514MPa(Min Rqd 415MPa);

 

Hardness:

Sa106 Gr B side p.metal: 160,151,147

Sa106 Gr B side HAZ:160,156,156

Weld: 193,170,165

Sa312 TP316L P.metal: 175, 175,181

Sa312 TP316L HAZ: 165,151,151

Face bends are satisfactory.

 

One root bend satisfactory.

 

Please give me the possible reasons and the precautions on further doing the PQR.

 

Regards,

 

Hareesh K V

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M. Shokri Arfaei

International Welding Engineer (IWE)

ASNT NDT Level III

ERI Metallurgy Lab. Manager

Tel: +98-21-66282127

Fax: +98-21-66282779

 

Please don't print this e-mail unless you really need to. BeGreen!

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