ASTM-A739 › Historical Revision Information
Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both
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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.
Scope
1.1 This specification2 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 standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
Keywords
alloy steel bars; high-temperature applications; hot-wrought steel bars; pressure-containing parts; steel bars; temperature service application—high;
To find similar documents by ASTM Volume:
01.05 (Steel--Bars, Forgings, Bearing, Chain, Tool)
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Document Number
ASTM-A739-90a(2016)
Revision Level
1990A R16 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
Sept. 1, 2016
Document Type
Specification
Page Count
2 pages
Committee Number
A01.15