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sridharyaamunan
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Join Date: Dec 2006
Posts: 19

Welding Question

10/04/2012 3:11 AM

We are welding 4140 tube of wall thickness 13mm to S275JR plate. E7018 is the electrode and the process is SMAW. can anyone give the procedure,pre heat and post heat temperatures.

Thanks in advance.

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Whitephone
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Join Date: Jan 2010
Location: Mineral wells Tx
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Good Answers: 34
#1

Re: Welding Question

10/04/2012 9:29 AM

ASTM 519 grade 4140 carbon steel alloy?
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sridharyaamunan
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Posts: 19
#2
In reply to #1

Re: Welding Question

10/04/2012 12:29 PM

yes. ASTM 519 grade 4140 carbon alloy tube...........

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Whitephone
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Location: Mineral wells Tx
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#3

Re: Welding Question

10/05/2012 1:49 AM

OK, According to ASME IX (2010 Edition) QW-422, All SA 519 are P1 and S 275JR is more/Lees the same ASTM SA-36, another P1. Then, you only have to Pre-heat to remove moisture. For thicknees 13 mm you need no PWHT.

For the others variables of this welding process (SMAW) go to ASME IX QW-253
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