St52 steel (St52-3) is an unalloyed structural steel grade complies with DIN 17100: 1980, the designation has been discarded since 2004. According to German standard DIN 17100, St52 steel is divided into St52-3U (1.0553) and St52-3N (1.0570 material).
Solid welding wire for S355 - St52-3 steels S355 is a standard type of carbon steel with a yield strength of 355 N/mm2, practically all welding consumables do offer a yield strength far above and this type has no welding restrictions or the material has to be really thick.
ST52-3 steels is a low alloy, high strength structural steel which can be readily welded to other weldable steel. ST52-3 steels Mechanical properties is Yield strength more than 355 MPa, tensile strength 490-630Mpa. With its low carbon equivalent, ST52-3 steel possesses good cold-forming properties.
DRAWN OVER MANDREL has very little wall variation and no spiraling eccentricity. The tube is formed and electric resistance welded from flat steel which has very little gauge variation. Any wall variation that may exist in the flat steel runs in the same plane throughout the length of the tube, leaving the bore straight and true.
I have encountered a problem in st-52 welding and I hope find good direction to solve it. I have welded a st-52 25mm thk. pipe to st-44 40mm thk. plate, weld is multipass fillet and fillerwire is Er70s-6 (SG-2) 1.2 mm thk. in mig process,shielding gas is Argon82-Co218, current 200-220 and votage 20-21.
RE: [MW:10334] Welding of S355JO with ST52-3 Steel grade 355JO is to BS EN 10025 and st 52.3 is to German standard DIN 17100 which can be accepted as an equivalent of st 355jo for below 16 mm thickness.
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