Mechanical properties of SMA- and SA-welded joints in normalized steel StE 460 NiV

Martti Vilpas, Hannele Tihekari, Risto Karppi

Research output: Book/ReportReport


The report gives the test results on mechanical properties of shielded metal arc (SMAW) and submerged arc (SAW) welded joints for a normalized steel StE NiV (Re - 500 N/mm2). The welding tests were carried out with Ni-alloyed filler materials (E 8018-Cl for SMAW and S2Ni2 for SAW), using a preheat temperature of 150 °C and arc energies of 17,30 and 50 kJ/cm. The testing procedure comprised conventional hardness, tensile and Charpy-V notch and fracture mechanics tests. The results showed that the weld metal strength and toughness properties were close to the corresponding base material values. Also the measured hardness values (217 to 355 HV5) were fairly low in all the studied cases. The Charpy-V notch transition behaviour of the joints was near that of the base material when the arc energy was reduced to around 17 kJ/cm. An increased arc energy, however, resulted in an impaired transition behaviour in the SAW-joints, especially in the Ni-alloyed weld metal. The fracture toughness (J-integral) test results indicated that the transition behaviour of the SMA-weld metal located at markedly higher temperatures than that of the corresponding SA-welds. The K -transition behaviour of the fusion boundaries did not show any clear differences between the SMAW- and SAW-tests. The most favourable toughness was obtained with SAW by reducing the arc energy below 30 kJ/cm.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages24
ISBN (Print)951-38-2596-5
Publication statusPublished - 1986
MoE publication typeD4 Published development or research report or study

Publication series

SeriesValtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports


  • high strength steels
  • weld toughness
  • ductility
  • welded joints
  • strength
  • fracture mechanics
  • impact tests
  • J-integral
  • cold cracking


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