Welding of super bainitic and triplex structure steels was studied using AWS A5.5 E11018-M and AWS A5.4 E312-17 electrodes. The existence of martensitic structure at the heat affected zone encourages the occurrence of cold cracking at the HAZ in welding of both super bainitic and triplex steels. Using E312-17 electrode renders the occurrence of cold cracks at the heat affected zone of these steels. The tensile strength of welded joints using E11018-M electrode is higher than that of the pure weld metal of E11018-M electrode. This could be attributed to the dilution of weld metal from the base metal especially carbon content. The V– notch impact test results using E312-17 electrode were slightly higher than that obtained using E11018-M electrode. This could be attributed to the occurrence of cold cracks using E11018-M electrode in addition to the tough austenitic weld metal using E312-17 electrode.

Please login / register to post comments

news in steel

ECS scrap preheating and zero bucket: the most sustainable way to produce steel

The first Danieli Zero-bucket EAF with ECS scrap preheating in China is in operation Chizhou City.

What's new in continuous casting: SMS Concast develops actuator-driven oscillation with direct drives by KOLLMORGEN

Shape is given to the molten steel by the casting die in continuous casting. The casting die can be compared to a mold made of water-cooled copper in which targeted extraction of heat causes the steel to form an outer skin – at first as delicate as a raw egg.

New Scan System with 20-Millimeter Aperture Broadens Product Portfolio

Laser technology manufacturer SCANLAB GmbH is extending its premium-segment product family with the excelliSCAN 20. This new scan system targets exceptionally demanding applications such as micromachining and additive manufacturing (3D printing).

Bucket manufacturer Lennéers chooses Hardox wear plate from SSAB for increased wear resistance and reduced weight

Swedish bucket manufacturer Lennéers uses Hardox wear plate from SSAB in all its products. Hardox abrasion-resistant steel enables Lennéers to deliver top-quality construction and agricultural equipment that is strong, light, and long lasting.