Welding A588 to A572
Welding A588 to A572
(OP)
I have a structure in which weathering steel performance is not an issue, but I have some available A588, and some available A572.
What problems could arise from welding these materials together? What electrode should be used?
What problems could arise from welding these materials together? What electrode should be used?
RE: Welding A588 to A572
RE: Welding A588 to A572
RE: Welding A588 to A572
The ASTM A 572 is high stregnth low alloy (HSLA) steel and also comes in various Grades based on yield strength. What you reported as 50 Ksi would fall under a Grade 50, with a min UTS of 65 Ksi.
Ok. If you need to perform a post weld heat treatment(PWHT) be aware that it may result in degraded toughness properties in the heat affected zone of the A 588 and A 572 base materials adjacent to the weld region (this would apply only to low temperature service).
What is the thickness of the rolled beam and weld joint configuration or detail? My suggestion is to use the SMAW process with an E 7018 H4 electrode for welding these materials. Watch you heat input and follow AWS D1.1 recommendations for suggested preheat.
RE: Welding A588 to A572
The structure is statically loaded and will be exposed to temperatures from +100degF to 0degF.
Weld are typically large fillets, but include full penetration groove welds (TC-U4c).
Is post-weld heat treatment necessary in this application? Is it recommended?
Thanks,
sns
RE: Welding A588 to A572
RE: Welding A588 to A572
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