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ASTM A126-04(2014)
Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings
3 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
23.040.40 Metal fittings / Металлические фитинги23.040.60 Flanges, couplings and joints / Фланцы, муфты и соединения
Сборник (ASTM):
01.02 Ferrous Castings; Ferroalloys / Стальное литье, Ферросплавы
Тематика:
Ferroalloys, Castings
Описание
Реферат

This guide covers standard specification for three classes of gray iron for castings intended for use as valve pressure retaining parts, pipe fittings, and flanges. Chemical analysis shall be performed in each lot and shall conform to the required chemical composition for phosphorous and sulfur. Tension test shall be conducted on each class of gray iron castings and shall conform to the specified values of tensile strength. Tension test specimens shall have threaded ends and shall conform to the prescribed dimensions.

Область применения

1.1 This specification covers three classes of gray iron for castings intended for use as valve pressure retaining parts, pipe fittings, and flanges.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

Note 1The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.
Ключевые слова:
gray iron castings; pressure retaining parts