fire crack

fire crack

[′fīr ‚krak]
(engineering)
A crack resulting from thermal stress which propagates on the heated side of a shell or header in a boiler or a heat transfer surface.
References in periodicals archive ?
Tenders are invited for Supply of fire cracks on 106.
Also present were too many fire cracks to ever seriously compete with superior imported models but latter models were far, far better moulded and larger, more impressive, but the decorating let them down as the palette was quite garish.
Yellow men with hats and hoses draw crowds of children from their homes, cheering and shouting as the fire cracks a beam on the building's roof.