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Elevated-temperature tensile and creep properties of some structural and prestressing steels

From National Research Council Canada

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DOIResolve DOI: https://doi.org/10.4224/40001474
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Affiliation
  1. National Research Council of Canada
FormatText, Article
SubjectFire; structural steel; tendons (steel); creep strength; tensile strength; effects of fire; tensile properties; creep properties; structural steels; prestressing steels; elevated-temperature tests; yield strength; ultimate strength; elongation; reduction of area; secondary creep rate; evaluation; tests
Abstract
The tensile and creep characteristics of two structural steels (ASTM A36 and CSA G40.12) and a prestressing steel ( ASTM A421), all three used extensively in the building industry, have been investigated. Information is presented concerning the initial portion of the stress-strain curve, the ultimate and yield strengths, the elongation, the reduction of area, and the two stress-dependent creep parameters, Z and epsilon(to), for temperatures up to 1200 and 1300 F. The tensile data obtained for ASTM A36 steel seemed to agree with other reported data. The G40.12 steel exhibited somewhat unusual tensile behavior at about 700 F. For the ASTM A421 steel the natural scatter of the test data overshadowed the effect of crosshead speed (0.02 to 0.75 in./ min) at temperatures below 700 F. Harmathy's creep model seemed fairly well applicable to all three steels, and Clauss' rule concerning the creep rupture time to the two structural steels.
Publication date
PublisherNational Research Council of Canada. Division of Building Research
Series
  • Research Paper (National Research Council of Canada. Division of Building Research), no. DBR-RP-424 (1 January 1970).
NoteReprinted from: ASTM Special Technical Publication, 464, 1970, p. 186-208. ISSN: 0066-0558
LanguageEnglish
Peer reviewedYes
NRC numberNRC 11163
NRC-IRC-2550
NPARC number20374937
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Record identifierdb62261b-9858-4b7f-8465-d4e4cdc2af41
Record created2012-07-23
Record modified2024-01-29
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