1. Scope
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.
ASTM Standards
A29/A29M Specification for Steel Bars, Carbon and Alloy, Hot-Wrought, General Requirements for
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
Keywords
alloy steel bars; high-temperature applications; hot-wrought steel bars; pressure-containing parts; steel bars; temperature service application—high; Fusion-welded materials/applications--specifications; Hot wrought steel bars--specifications; Alloy steel bars--specifications; Pressure vessel steel bars--specifications; Elevated temperature service applications--steel
ICS Code
ICS Number Code 77.140.30 (Steels for pressure purposes)
DOI: 10.1520/A0739-90AR00
ASTM International is a member of CrossRef.
Citing ASTM Standards
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