ASTM A618/A618M-21

Podrobné informácie

Označenie: ASTM A618/A618M-21

Dátum vydania: 01.08.2021

Stránok: 6

Krajina: Americká technická norma

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Anotácia

This specification covers grades of hot-formed welded and seamless high-strength low-alloy square, rectangular, round, or special shape structural tubing for welded, riveted, or bolted construction of bridges and buildings and for general structural purposes. These grades are: Grade Ia and Ib; Grade II; and Grade III. When the steel is used in welded construction, the welding procedure shall be suitable for the steel and the intended service. The tubing shall be made by the seamless, furnace-buttwelded (continuous-welded), or hot-stretch-reduced electric-resistance-welded process. Tensile test and bend test shall be performed for the material to conform to the requirements specified. If the results of the mechanical tests representing any heat do not conform to a requirement, retests shall be made.


Keywords:
high-strength low-alloy steel, seamless steel tube, steel tube, structural steel tubing, welded steel tubing,, ICS Number Code 23.040.10 (Iron and steel pipes),23.040.40 (Metal fittings)