Aktívna norma | Vydaná: 01.05.2021

ASTM A821/A821M-21

Standard Specification for Steel Wire, Hard-Drawn for Prestressed Concrete Tanks

Dostupné jazyky: Anglicky

Dostupné prevedenie: Online zabezpečené PDF, Norma a Redline - Online zabezpečené PDF, Tlačené, Tlač + redline

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Podrobné informácie

Označenie: ASTM A821/A821M-21

Dátum vydania: 01.05.2021

Stránok: 4

Krajina: Americká technická norma

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Anotácia

This specification covers uncoated, high-strength, hard-drawn steel wire for prestressed concrete tanks and similar structures. Steel samples shall be processed by either open-hearth, basic-oxygen, or electric furnace melting process. The wires shall be cold-drawn as well. Cast or heat analysis and product analysis shall be performed wherein the steel materials shall conform to the required chemical compositions of carbon, manganese, phosphorus, sulfur, and silicon. Steel specimens shall also undergo tensile tests, wrap tests, and torsion tests. Final products shall be marked by a tag.

Keywords:
prestressed concrete tanks, steel wire ,, ICS Number Code 77.140.15 (Steels for reinforcement of concrete)

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