Semikilled steel which has characteristics similar to those of rimmed steels, but to a degree intermediate between rimmed and killed steel. The capping operation limits the time of gas evolution and prevents the formation of an excessive number of gas voids within the ingot.
Chipping away at fabricating success - by Dan Davis If you walk into a fabrication shop today, you more than likely are going to see a machining center on the shop floor. It's not that these shops are chasing machining work; they are just looking to add more manufacturing services to win more business from their current customer base.
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