View Full Version : Marking steel

01-17-2009, 07:09 AM
Just a quick tip.
When trying to mark hot drawn steel (has a scale on it) the scribe usually wont scratch through the scale.
Use a pointed piece of braising rod as a pencil. It shows up as a gold line.
Aluminium rod also works but neither will work on clean steel.

01-17-2009, 09:11 AM
Good tips. Another thing I have found that works on about anything is a silver permanent marker (Sharpie). The silver is easier to see on steel that is polished.

01-17-2009, 11:28 AM
I have steel crayon :jester:

01-17-2009, 11:30 AM
i've used black permanent but the silver sounds good

01-17-2009, 01:12 PM
I use black sharpies , silver sharpies and welders chalk. Welders chalk will also help you keep track of where you are trying to run your weld bead . Mark the bead area with the chalk and it will standout clearer when the hood goes down than a dark line.


01-17-2009, 09:16 PM
Ooops. I meant to say on steel that is "not" polished. Polished steel is usually silver, so its hard to see.

01-18-2009, 12:52 PM
Yep, black Sharpies are the markers of choice around here.

01-18-2009, 09:13 PM
Ive used "welders chak" before I dont like it. I much prefer sharpies, the primer on my steel is rut colored(no it isnt rust) so the sharpie stands out.

Ig im working with a darker colored steel I use a scratch all.:punk:

01-18-2009, 09:50 PM
I use Sharpies for marking steel mostly the mani reason I mentioned the welders chalk was to help the newer welders see what they are trying to weld :D.

GVB empty your PM messages its full .


01-19-2009, 01:49 PM
has anyone tried white wax crayons or white grease pencils??

01-19-2009, 01:58 PM
Macka the grease pencils would work although that would be grease you would have to make sure to remove before you tried to paint .


01-19-2009, 02:27 PM
I'm going to try the grease pencil and see how it holds up to welding

01-19-2009, 03:48 PM
Since the frame should be sanded and dust removed prior to painting, the little bit of grease is easy to erase. Use a little solvent, like acetone or alcohol to wipe the frame after sanding, to get rid of the dust and any oil residue from the steel being handled by people. The solvent will remove the grease as well.

01-19-2009, 05:02 PM
...or just heat the ENTIRE frame up, till it's glowing BRIGHT red!
This will remove all oil & grease contaminants!

(Frame should be totally engulfed in flames, like my signature pic below)


John Lewis
01-20-2009, 12:53 AM
I use a blue permanent marker to "paint" the area then I scribe through the blue. It shows up well. I've also used a spray of quick dry acrylic and scribed through that but the marker is quicker and better.

You can get a marking out blue. It seems to be blue colour dissolved in spirit based shellac varnish.

John Lewis

01-20-2009, 10:04 AM
[B][FONT="Comic Sans MS"][COLOR="Blue"]...or just heat the ENTIRE frame up, till it's glowing BRIGHT red!

Gitto heat treating?:punk:

01-20-2009, 11:37 AM
Gitto heat treating?:punk:Actually, to be safe, you need to go BEYOND bright red, all the way to light orange!
It helps if you have a friend who works at a foundry, with access to a blast furnace.