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Reduction factors for stainless steel bolts at elevated temperatures

Journal Article


Abstract


  • This paper presents an experimental investigation of the mechanical properties of sixty A4-70 and A4-80 stainless steel bolts under steady-state temperatures ranging from 20 to 900 °C. The material responses at elevated temperatures of the parent materials, SUS316 and SUS316Ti stainless steels (also known as EN 1.4401 and EN 1.4571 steels), and of fire-resistant bolts are included for comparisons. The tensile strength degradation of stainless steel bolts in fire are found to be reasonably close to those specified by Eurocode 3 Part 1.2 for their parent materials, but the Young's modulus degradation is not so robust. At temperatures lower than 650 °C, the stainless steel bolts retain their 0.2% proof strength better than their parent materials. Importantly, in the temperature range of 500 to 900 °C the stainless steel bolts retain their tensile strength, Young's modulus and 0.2% proof strength better than fire-resistant bolts (BOLTEN110N-FR to JSSII-09 standard). Based on the experimental data, reduction factors for tensile strength, Young's modulus and 0.2% proof strength are derived in this paper for stainless steel bolts at elevated temperatures.

Authors


  •   Hu, Ying (external author)
  •   Yang, Cheng (external author)
  •   Teh, Lip H.
  •   Yang, Yeong (external author)

Publication Date


  • 2018

Citation


  • Hu, Y., Yang, C. Bo., Teh, L. H. & Yang, Y. (2018). Reduction factors for stainless steel bolts at elevated temperatures. Journal of Constructional Steel Research, 148 198-205.

Scopus Eid


  • 2-s2.0-85047799269

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1511

Number Of Pages


  • 7

Start Page


  • 198

End Page


  • 205

Volume


  • 148

Place Of Publication


  • United Kingdom

Abstract


  • This paper presents an experimental investigation of the mechanical properties of sixty A4-70 and A4-80 stainless steel bolts under steady-state temperatures ranging from 20 to 900 °C. The material responses at elevated temperatures of the parent materials, SUS316 and SUS316Ti stainless steels (also known as EN 1.4401 and EN 1.4571 steels), and of fire-resistant bolts are included for comparisons. The tensile strength degradation of stainless steel bolts in fire are found to be reasonably close to those specified by Eurocode 3 Part 1.2 for their parent materials, but the Young's modulus degradation is not so robust. At temperatures lower than 650 °C, the stainless steel bolts retain their 0.2% proof strength better than their parent materials. Importantly, in the temperature range of 500 to 900 °C the stainless steel bolts retain their tensile strength, Young's modulus and 0.2% proof strength better than fire-resistant bolts (BOLTEN110N-FR to JSSII-09 standard). Based on the experimental data, reduction factors for tensile strength, Young's modulus and 0.2% proof strength are derived in this paper for stainless steel bolts at elevated temperatures.

Authors


  •   Hu, Ying (external author)
  •   Yang, Cheng (external author)
  •   Teh, Lip H.
  •   Yang, Yeong (external author)

Publication Date


  • 2018

Citation


  • Hu, Y., Yang, C. Bo., Teh, L. H. & Yang, Y. (2018). Reduction factors for stainless steel bolts at elevated temperatures. Journal of Constructional Steel Research, 148 198-205.

Scopus Eid


  • 2-s2.0-85047799269

Ro Metadata Url


  • http://ro.uow.edu.au/eispapers1/1511

Number Of Pages


  • 7

Start Page


  • 198

End Page


  • 205

Volume


  • 148

Place Of Publication


  • United Kingdom