Active standard | Published: 15/04/2021

ASTM A911/A911M-21

Standard Specification for Low-Relaxation Steel Bars for Prestressed Concrete Railroad Ties

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Detail information

Designation: ASTM A911/A911M-21

Publication date: 15/04/2021

Pages: 4

Country: American technical standard

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Anotation

This specification covers uncoated, stress-relieved steel bars for prestressed concrete railroad ties. Analysis of the steel shall conform to the chemical requirements specified by the specification. Mechanical requirements including test method, tensile strength, yield strength, elongation and wrapping test are provided. One test specimen each for the tensile test and the wrapping test shall be taken for every 10 coils or fraction thereof in a lot.

Keywords:
low-relaxation bars, prestressed concrete, railroad ties, steel bars, stress-relieved,, ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

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