Three forms of semi-finished steel sit between the steelmaking furnace and the finished component: the ingot, the bloom, and the billet. Every forge shop, ring roller, bar mill, and heavy engineering manufacturer works from one or more of these forms – and the choice of which to use is a decision with direct consequences for … Read more
When a re-roller specifies alloy steel billets for bearing rings, or a forge shop orders billets for critical automotive transmission components, the purchase order chemistry column tells only part of the story. A billet reading 0.38–0.45% C, 0.80–1.10% Cr, and 0.15–0.25% Mo – squarely within an AISI 4140 specification – can be either a reliable … Read more
If you work in forging, ring rolling, re-rolling, or bar manufacturing, you deal with semi-finished steel products every day. But when a supplier asks whether you need billets or blooms, do you know exactly what differentiates the two — and which one your process actually requires? The terms are often used interchangeably in casual conversation, … Read more