There are two distinct forms of plate and sheet steel available for the various alloys of carbon steel.
Blackened hot rolled steel sheet.
Slight blemishes that often appear in this patina add to the overall look of something perfectly industrial.
What is the process that a cold rolled steel sheet see attachment needs to undergo to become blackened.
I live in nova scotia and no one seems to know what i m talking about when i say blackened steel but it is a term i often hear on houzz to refer to many black steel fireplace surrounds that you feature.
Our blackened hot rolled finish is simple.
Actual colors in finish may vary slightly from sample image shown.
This patina features subtle mottling and color blocks in steel blue black and charcoal gray tones with soft blending along the edges.
Hot rolled vs cold rolled steels.
Hot rolled steel is used in situations where precise shapes and tolerances are not required.
Cold rolled steel is essentially hot rolled steel that has had further processing.
Among the processes include chemical baths and finishes cold coatings hot coatings with various levels of success.
We use hot rolled steel and clean the original mill scale of the steel to a blue black finish that has a clean durable classic industrial look.
Hope you can help.
In many architectural uses blackened steel may refer to galvanized steel with a blackened zinc patina oxide.
Denali is our classic blackened finish on steel to give you a modern industrial raw look.
Hot rolled steel has a course grainy surface with dark streaks.
Blackened steel refers to a number of techniques which can be used to produce a blackened finish on steels.