A puddle bar is the first wrought iron product created after squeezing and rolling a hot puddle ball. It is rough, highly fibrous, and still contains significant slag inclusions. To make commercial merchant bar, puddle bars are cut, stacked, reheated, and rolled again to refine the grain and distribute the remaining slag.
Heard on the job
We need to stack and reheat these puddle bars to get the grade of iron the client specified.
Also heard as
- muck bar
Related terms
Puddle ball
A spongy mass of hot wrought iron gathered from a puddling furnace.
Puddling
A historic process of converting pig iron into wrought iron by stirring it in a reverberatory furnace.
Mill bar
A rough, intermediate bar of iron rolled directly from a bloom or puddle bar.
Merchant iron
Finished wrought iron or steel rolled into standard, commercially saleable profiles.