M00000162
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ASTM A739-90a(2016) Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both
standard by ASTM International, 09/01/2016
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Availability date: 07/24/2021
1.1This specification2 covers hot-wrought, ferritic alloy steel bars for elevated temperature or pressure-containing parts suitable for fusion welding or both.
1.2The 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 |
1.3The 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.