Submerged arc welding of high strength structural steels

Martti Vilpas, Albert Heuser, Helmut Nies, Risto Karppi

Research output: Book/ReportReportProfessional

Abstract

This report discusses test results obtained in single and multiwire SAW-tests of five different high strength steels (Re = 370 - 690 N/mm2) of type StE 690, StE 470 V, StE 460 N, E StE 355 and RR St 52-3U, all having a plate thickness of 40 mm. The arc energies studied in the tests were 17, 30, 50 and 80 kJ/cm, the two highest values being somewhat in excess of up-to-day practice usually applied in industry. The studied steels E StE 355 and RR St 52-3U were new modifications developed especially for low operating temperatures and high heat input welding, respectively. The three other steels were conventional ones. The test results showed that the arc energy should be reduced to 15 - 25 kJ/cm to obtain sufficient HAZ toughness (i.e. T27J</= -40 °C) in SA-welded butt joints of steel StE 690 (Re = 690 N/mm2). Correspondingly, the recommended arc energy range for steels StE 470 and StE 460 (Re = 500 N/mm2) was found to be 10 - 30 kJ/cm. The steels E StE 355 and RR St 52-3U (Re = 370 N/mm2) resulted in favourable toughness behaviour (T27J<-50 °C) for all the arc energies studied, i.e. 17 - 50 kJ/cm for E StE 355 and 80 kJ/cm for RR St 52-3U. The arc energy was, however, recommended to be reduced to values between 10 - 40 kJ/cm when a transition temperature T27J less than -60 °C is required with these steels. The transition behaviours of weld metals were found to be in all cases more favourable than those of heat affected zones in the arc energy range recommended for HAZ toughness.
Original languageEnglish
Place of PublicationEspoo
PublisherVTT Technical Research Centre of Finland
Number of pages47
ISBN (Print)951-38-2708-9
Publication statusPublished - 1986
MoE publication typeD4 Published development or research report or study

Publication series

NameTutkimuksia / Valtion teknillinen tutkimuskeskus
PublisherVTT
Volume436

Fingerprint

Submerged arc welding
Steel
Toughness
Heat affected zone
High strength steel
Superconducting transition temperature
Welding
Welds
Metals
Industry

Keywords

  • high strength steels
  • weld toughness
  • welded joints
  • submerged arc welding

Cite this

Vilpas, M., Heuser, A., Nies, H., & Karppi, R. (1986). Submerged arc welding of high strength structural steels. Espoo: VTT Technical Research Centre of Finland. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, No. 436
Vilpas, Martti ; Heuser, Albert ; Nies, Helmut ; Karppi, Risto. / Submerged arc welding of high strength structural steels. Espoo : VTT Technical Research Centre of Finland, 1986. 47 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 436).
@book{3a93e1070d5e474d8b2e621877ea2615,
title = "Submerged arc welding of high strength structural steels",
abstract = "This report discusses test results obtained in single and multiwire SAW-tests of five different high strength steels (Re = 370 - 690 N/mm2) of type StE 690, StE 470 V, StE 460 N, E StE 355 and RR St 52-3U, all having a plate thickness of 40 mm. The arc energies studied in the tests were 17, 30, 50 and 80 kJ/cm, the two highest values being somewhat in excess of up-to-day practice usually applied in industry. The studied steels E StE 355 and RR St 52-3U were new modifications developed especially for low operating temperatures and high heat input welding, respectively. The three other steels were conventional ones. The test results showed that the arc energy should be reduced to 15 - 25 kJ/cm to obtain sufficient HAZ toughness (i.e. T27J</= -40 °C) in SA-welded butt joints of steel StE 690 (Re = 690 N/mm2). Correspondingly, the recommended arc energy range for steels StE 470 and StE 460 (Re = 500 N/mm2) was found to be 10 - 30 kJ/cm. The steels E StE 355 and RR St 52-3U (Re = 370 N/mm2) resulted in favourable toughness behaviour (T27J<-50 °C) for all the arc energies studied, i.e. 17 - 50 kJ/cm for E StE 355 and 80 kJ/cm for RR St 52-3U. The arc energy was, however, recommended to be reduced to values between 10 - 40 kJ/cm when a transition temperature T27J less than -60 °C is required with these steels. The transition behaviours of weld metals were found to be in all cases more favourable than those of heat affected zones in the arc energy range recommended for HAZ toughness.",
keywords = "high strength steels, weld toughness, welded joints, submerged arc welding",
author = "Martti Vilpas and Albert Heuser and Helmut Nies and Risto Karppi",
year = "1986",
language = "English",
isbn = "951-38-2708-9",
series = "Tutkimuksia / Valtion teknillinen tutkimuskeskus",
publisher = "VTT Technical Research Centre of Finland",
address = "Finland",

}

Vilpas, M, Heuser, A, Nies, H & Karppi, R 1986, Submerged arc welding of high strength structural steels. Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports, no. 436, VTT Technical Research Centre of Finland, Espoo.

Submerged arc welding of high strength structural steels. / Vilpas, Martti; Heuser, Albert; Nies, Helmut; Karppi, Risto.

Espoo : VTT Technical Research Centre of Finland, 1986. 47 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 436).

Research output: Book/ReportReportProfessional

TY - BOOK

T1 - Submerged arc welding of high strength structural steels

AU - Vilpas, Martti

AU - Heuser, Albert

AU - Nies, Helmut

AU - Karppi, Risto

PY - 1986

Y1 - 1986

N2 - This report discusses test results obtained in single and multiwire SAW-tests of five different high strength steels (Re = 370 - 690 N/mm2) of type StE 690, StE 470 V, StE 460 N, E StE 355 and RR St 52-3U, all having a plate thickness of 40 mm. The arc energies studied in the tests were 17, 30, 50 and 80 kJ/cm, the two highest values being somewhat in excess of up-to-day practice usually applied in industry. The studied steels E StE 355 and RR St 52-3U were new modifications developed especially for low operating temperatures and high heat input welding, respectively. The three other steels were conventional ones. The test results showed that the arc energy should be reduced to 15 - 25 kJ/cm to obtain sufficient HAZ toughness (i.e. T27J</= -40 °C) in SA-welded butt joints of steel StE 690 (Re = 690 N/mm2). Correspondingly, the recommended arc energy range for steels StE 470 and StE 460 (Re = 500 N/mm2) was found to be 10 - 30 kJ/cm. The steels E StE 355 and RR St 52-3U (Re = 370 N/mm2) resulted in favourable toughness behaviour (T27J<-50 °C) for all the arc energies studied, i.e. 17 - 50 kJ/cm for E StE 355 and 80 kJ/cm for RR St 52-3U. The arc energy was, however, recommended to be reduced to values between 10 - 40 kJ/cm when a transition temperature T27J less than -60 °C is required with these steels. The transition behaviours of weld metals were found to be in all cases more favourable than those of heat affected zones in the arc energy range recommended for HAZ toughness.

AB - This report discusses test results obtained in single and multiwire SAW-tests of five different high strength steels (Re = 370 - 690 N/mm2) of type StE 690, StE 470 V, StE 460 N, E StE 355 and RR St 52-3U, all having a plate thickness of 40 mm. The arc energies studied in the tests were 17, 30, 50 and 80 kJ/cm, the two highest values being somewhat in excess of up-to-day practice usually applied in industry. The studied steels E StE 355 and RR St 52-3U were new modifications developed especially for low operating temperatures and high heat input welding, respectively. The three other steels were conventional ones. The test results showed that the arc energy should be reduced to 15 - 25 kJ/cm to obtain sufficient HAZ toughness (i.e. T27J</= -40 °C) in SA-welded butt joints of steel StE 690 (Re = 690 N/mm2). Correspondingly, the recommended arc energy range for steels StE 470 and StE 460 (Re = 500 N/mm2) was found to be 10 - 30 kJ/cm. The steels E StE 355 and RR St 52-3U (Re = 370 N/mm2) resulted in favourable toughness behaviour (T27J<-50 °C) for all the arc energies studied, i.e. 17 - 50 kJ/cm for E StE 355 and 80 kJ/cm for RR St 52-3U. The arc energy was, however, recommended to be reduced to values between 10 - 40 kJ/cm when a transition temperature T27J less than -60 °C is required with these steels. The transition behaviours of weld metals were found to be in all cases more favourable than those of heat affected zones in the arc energy range recommended for HAZ toughness.

KW - high strength steels

KW - weld toughness

KW - welded joints

KW - submerged arc welding

M3 - Report

SN - 951-38-2708-9

T3 - Tutkimuksia / Valtion teknillinen tutkimuskeskus

BT - Submerged arc welding of high strength structural steels

PB - VTT Technical Research Centre of Finland

CY - Espoo

ER -

Vilpas M, Heuser A, Nies H, Karppi R. Submerged arc welding of high strength structural steels. Espoo: VTT Technical Research Centre of Finland, 1986. 47 p. (Valtion teknillinen tutkimuskeskus. Tutkimuksia - Research Reports; No. 436).