Cold Drawn vs Cold Finsihed 2

[QAFitz]

What is the difference between a mill that produced bars as COLD-FINISHED, and a specification requirement of COLD-DRAWN?

ASTM A-194 Gr. 1 notes COLD-DRAWN and the mill test report indicates CF (COLD FINISHED) which could be ground to size.

Any comments?

 

[EngineerTex]

My company, which uses raw material, as opposed to creating it, has used the two terms interchangably, but we are not a mill.

Engineering is not the science behind building. It is the science behind not building.

 

[MintJulep]

Cold drawing is a specific process - drawing a bar of stock through a die.

Cold finishing is I think synonymous with cold working which is more generic. It could be drawing, or rolling or pressing or spinning or heading.

If it's a reputable mill there is a metallurgist locked in a closet somewhere who would be happy to explain to you exactly what you have.

If it's from China or India, well good luck.

 

[TVP]

ASTM A 108 Standard Specification for Steel Bar, Carbon and Alloy, Cold-Finished lists the following conditions that are acceptable for cold-finished round bars:

Cold drawn
Cold drawn, turned, and polished
Cold drawn, ground, and polished
Cold drawn, turned, ground, and polished
Cold drawn, turned, and ground
Hot wrought, turned, and polished
Hot wrought, turned, ground and polished
Hot wrought, turned, and ground
Hot wrought, rough turned

So, cold-finished does not necessarily mean cold-drawn, but it isn't excluding it either.