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ASTM A739-90a(2006)
Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both
2 стр.
Заменен
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84.24 $ (включая НДС 20%)
Разработчик:
Зарубежные/ASTM
ICS:
77.140.30 Steels for pressure purposes / Стали для работы под давлением
Сборник (ASTM):
01.05 Steel--Bars, Forgings, Bearing, Chain, Tool / Сталь - Прутья, Поковки и Заготовки, Балки
Тематика:
Steel--Structural, Tubes, Plate, Coated
Описание
Реферат

This specification covers hot-wrought, ferritic alloy steel bars for elevated temperature or pressure-containing parts suitable for fusion welding or both. The bars are furnished in two grades: Grade B 11 and Grade B 22. The steel shall be made by on or more of the following primary processes: open-hearth, basic-oxygen, or electric furnace. The bars shall be normalized and tempered. The heat analysis shall conform to the limits for chemical composition specified. The bars as represented by the test specimen shall conform to the tensile requirements specified.

Область применения

1.1 This specification covers hot-wrought, ferritic alloy steel bars for elevated temperature or pressure-containing parts suitable for fusion welding or both.

1.2 The bars are furnished in the following grades:

Grade B 11: 1.25% chromium, 0.55% molybdenum

Grade B 22: 2.25% chromium, 1.00% molybdenum

1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

Ключевые слова:
alloy steel bars; high-temperature applications; hot-wrought steel bars; pressure-containing parts; steel bars; temperature service application--high