Tuesday, November 29, 2011

[MW:13089] RE: 13083] Preheating temperature of 2nd process when use two welding process in one single joint (GTAW+SMAW)

Dear Mhaskar,

If you take that temperature before start welding SMAW process then it will be consider as preheating temperature for SMAW

 

From: materials-welding@googlegroups.com [mailto:materials-welding@googlegroups.com] On Behalf Of Aly
Sent: Tuesday, 29 November, 2011 2:40 AM
To: materials-welding@googlegroups.com
Subject: [MW:13083] Preheating temperature of 2nd process when use two welding process in one single joint (GTAW+SMAW)

 

Dear Experts,

 

When we are using two process (GTAW + SMAW) on pipe test coupon of a PQR, Root run & hot is done with GTAW process, immediately after hot pass we have started SMAW process,

 

Prior to start of SMAW process, temperature of coupon noted was 95 deg C

 

My question is whether this 95deg C will be considered as preheating temperature for SMAW process

 

Kindly advise in the light ASME Codes

 

Thanks in advance

 

Mhaskar Aly

UAE 

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