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:
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Grade B 11: 1.25 % chromium, 0.55 % molybdenum |
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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.
