Short description
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.