Cold-rolled versus hot rolled mild steel
Cold-rolled versus hot rolled mild steel
(OP)
What is the advantage of using cold rolled mild steel (round stock) when compared to hot-rolled? Traditionally we've used cold rolled for items like linkages or lightly loaded machined parts; and hot rolled for fabricated parts and weldments. The purchasing guy here says there's no difference except for finish. I disagree but have found little proof to back my arguement!





RE: Cold-rolled versus hot rolled mild steel
HRPO 1020
Elongation ~25%
Ultimate ~55.1kpsi
Yield ~29.7kpsi
CRS 1020
Elongation ~15%
Ultimate ~60.9kpsi
Yield ~50.8kpsi
MadMango
"Probable impossibilities are to be preferred to improbable possibilities."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: Cold-rolled versus hot rolled mild steel
RE: Cold-rolled versus hot rolled mild steel
Then there is the surface finish issue. What kind of roughness can you tolerate?
Then finishing over scale vs bare metal in some applications.
RE: Cold-rolled versus hot rolled mild steel
MadMango
"Probable impossibilities are to be preferred to improbable possibilities."
Have you read FAQ731-376 to make the best use of Eng-Tips Forums?
RE: Cold-rolled versus hot rolled mild steel
You can get a lot of properties and tolerance information at:
http://www.ryersontull.com/stocklist/RedbookServlet?COM=GetLevel&ID=DATA
RE: Cold-rolled versus hot rolled mild steel
RE: Cold-rolled versus hot rolled mild steel