Документы

ASTM International

Standard Specification for Gray Iron Castings for Pressure-Containing Parts for Temperatures Up to 650°F (350°C)
 N A278/A278M

Annotation

This specification2 covers gray iron for castings suitable for pressure-containing parts for use at temperatures up to 650°F (350°C).

Classes of Iron:

Castings of all classes are suitable for use up to 450°F (230°C). For temperatures above 450°F and up to 650°F, only Class 40, 45, 50, 55, and 60 castings are suitable.

Castings of all classes are suitable for use up to 230°C. For temperatures above 230°C and up to 350°C, only Class 275, 300, 325, 350, 380, and 415 castings are suitable.

The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

2 For ASME Boiler and Pressure Vessel Code applications see related Specification SA-278 in Section II of that Code.

Автоматический перевод:

Стандартная спецификация для литий из серого чугуна для содержащих давление частей для температур до 650°F (350°C)

Этот specification2 покрывает серый чугун для кастингов, подходящих для содержащих давление частей для использования при температурах до 650°F (350°C).