A739 REV A
Standard Specification for Steel Bars, Alloy, Hot-Wrought, for Elevated Temperature or Pressure-Containing Parts, or Both
| Publication Date: | 31 August 1990 |
| Status: | active |
| Page Count: | 2 |
| ICS Code (Steels for pressure purposes): | 77.140.30 |
scope:
This specification2 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 the following grades:
Grade B 11: 1.25 % chromium, 0.55 % molybdenum
Grade B 22: 2.25 % chromium, 1.00 % molybdenum
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.
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2 For ASME Boiler and Pressure Vessel Code applications, see related Specification SA-739 in Section II of that code.
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