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Stainless Steel Bar and Wire Rod: Blooms Hot-Rolled, Cut or Coiled
Long stainless products start as blooms. Reheat a bloom and hot-roll it stand by stand: stop at bar size and cut it into lengths as it leaves the mill, or roll on down to wire rod and coil it for drawing. Bars are then straightened and machined.
The picture: our diagram, bloom to bar and to coiled rod.
Advanced
Factory process
Instructions
1
1
Reheat the bloom
Reheat the bloom
Heat the stainless bloom above its recrystallisation temperature.
Materials for this step:
Stainless Steel Bloom1 pieceTools needed:
Induction Heater2
2
Roll it down
Roll it down
Pass it through the roughing, intermediate and finishing stands, each making the section smaller and rounder. Reheat if it cools below the recrystallisation temperature.
Tools needed:
Rolling MillInduction Heater3
3
Bar: cut to length
Bar: cut to length
For bar, stop at the bar size and cut it into lengths at the mill exit. When cold, straighten it and machine it to tolerance and finish.
Tools needed:
Oxyacetylene Cutting Torch
Metal Lathe4
4
Wire rod: coil it
Wire rod: coil it
For wire rod, roll on down to about 9 mm and lay it in a coil, ready for the drawing bench.
Tools needed:
Rolling Mill5
5
Rod from one bloom
Rod from one bloom
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Materials
1- 1 piecePlaceholder
Tools Required
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