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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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
A29/A29M Specification for General Requirements for Steel Bars, Carbon and Alloy, Hot-Wrought
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
ICS Number Code 77.140.30 (Steels for pressure purposes)
UNSPSC Code 30264500(Stainless steel bars); 30263700(Steel alloy bars)
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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, ASTM International, West Conshohocken, PA, 2006, www.astm.orgBack to Top