science of painted metals

[ignicapillus]

Hi!
I am working on a scene with some pieces of furniture in painted steel; below you find a casual reference for materials.
At the moment I am eye-balling, and I am not satisfied with the result; how would you approach this type material? Later I'll post some of my tests, in the meantime I'd welcome your opinion!
Thanks to who'll join the discussion!

[ignicapillus]

Here I am with some tests. These should be old, painted forged chairs.
What do you think of the material?
(the model needs still some work, especially on welding points)

[ignicapillus]

Weldings added with Welder 2.0 http://www.scriptspot.com/3ds-max/scripts/welder-0 (great free plugin!).
I slightly corrected the specular intensity and IOR. What do you think of the material?

[Juraj]

Heh welder, I never got that script working like I wanted. Looks good.

If you're looking for some imperfections, you can do some chipped paint on small spots.
It's hard to make semi-gloss/matt reflectiction materials look truly convincing in CGI without imperfection, it's far more easier for clean/mirror-like reflections. You can blend you material with slight mirror coating to give it that glazured look.