Submerged arc fillet welds between mild steel and stainless steel

Journal Article · Sat Feb 01 00:00:00 EST 1997 · Welding Journal

OSTI ID:471148

Kotecki, D J; Rajan, V B ^[1]

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1. Lincoln Electric Co., Cleveland, OH (United States)

Submerged arc fillet welds between mild steel and Type 304 stainless steel, made with ER309L wire, may contain no ferrite and be at risk of hot cracking, or they may be sufficiently diluted that they transform to martensite with both hot cracking risk and low ductility. This situation is most prevalent when direct current electrode positive (DCEP) polarity is used and when the flange is the mild steel part of the T-joint. A flux that adds chromium to the weld can somewhat alleviate this tendency. Direct current electrode negative (DCEN) polarity greatly reduces this tendency by limiting dilution. Fillet weld compositions and dilutions are obtained for a number of welding conditions and fluxes.

• OSTI ID: 471148
• Journal Information: Welding Journal, Vol. 76, Issue 2; Other Information: PBD: Feb 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
SUBMERGED ARC WELDING
CARBON STEELS
STAINLESS STEELS
WELDED JOINTS
METALLURGICAL FLUX
MICROSTRUCTURE
FILLER METALS