What Affects Grade Selection
Casting Powder cannot be selected only by product name. The same Mould Powder or Mold Flux grade may behave differently when casting speed, section size, mould level control, steel chemistry, and superheat change. A suitable grade must melt at the right rate, form a stable liquid slag, support lubrication, and maintain the required insulation at the meniscus.
When a plant reports breakouts, surface cracks, sticker tendency, poor billet brightness, excessive slag carryover, or high consumption, we review the operating pattern before recommending a trial. Details such as billet size, casting speed, steel grade, tundish temperature, current consumption, and the current powder's behavior help narrow the selection.
How To Evaluate A Trial
A good trial should compare the new Casting Powder against the existing plant material under similar operating conditions. Operators should note powder spreadability, melting uniformity, slag rim behavior, mould lubrication, flame and smoke behavior, strand surface, and consumption per ton.
Procurement teams should also track packing condition, batch consistency, dispatch timing, and the supplier's response to feedback. The goal is not only a lower material rate, but a stable continuous casting operation with fewer interruptions and better quality confidence.
