Welding ASTM A517 Grade B
Welding ASTM A517 Grade B
(OP)
We are looking at modification of a large diameter, 3/4" wall pipe made of this Q&T steel. The task is local thickness reinforcement for a small diameter penetration. It is not pressure equipment.
Other than strict hydrogen control practice and preheat, are there any other precautions we should take? Electrode will not need to quite match the base metal. PWHT is not feasible.
Other than strict hydrogen control practice and preheat, are there any other precautions we should take? Electrode will not need to quite match the base metal. PWHT is not feasible.
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"





RE: Welding ASTM A517 Grade B
RE: Welding ASTM A517 Grade B
RE: Welding ASTM A517 Grade B
Do you mean excessive interpass? I've worked with many kinds of steel but not Q&T so far.
Client is proposing an attachment with a fairly narrow groove, which concerns me for its difficulty. I am trying to push them toward a simple weld build-up (recently rebranded as 'additive manufacturing' by tech geeks).
"If you don't have time to do the job right the first time, when are you going to find time to repair it?"
RE: Welding ASTM A517 Grade B
RE: Welding ASTM A517 Grade B
RE: Welding ASTM A517 Grade B
The following link below provides useful information on welding of various Q&T steels, including various grades of SA 517.
Strict and usual welding controls as required for Q&T steels would be advisable.Use of SMAW welding electrodes, SFA 5.5,E-100/11018M are normally recommended for these grades. One may use the conventional weld grooves for such steels. As long as preheat, interpass control, DHT and PWHT(as required)are implemented in addition to welding consumable control, these steels are quite well weldable.
Thanks.
http://usa.arcelormittal.com/~/media/Files/A/Arcel...
Pradip Goswami,P.Eng.IWE
Welding & Metallurgical Specialist
Ontario,Canada.
ca.linkedin.com/pub/pradip-goswami/5/985/299