An issue to consider is which technological level you want your Cimmerians to be.
REH never mentioned anything about the quality of Cimmerian swords, that's John Milius' film creation.
Considering what we know of the Hyborian Age only by REH writings is fairly probable that Cimmerian technological level was quite low, and so good blades can be found only among Hyborians.
Did the Cimmerians had the same technological level of ancient Gauls?
If so, their swords could be of low quality.
Roman & Greek literary sources are full of references to Gaulish swords getting bent during a fight.
However, archaeology has demonstrated that at least some of the "Latenian swords" were of good quality, although most were not at the same level of Roman Gladii (shorter, harder, better tempered).
On the other hand, one could choose to have the Cimmerians have a medieval/early modern technological level (at least in Smithing), and therefore anything can be possible, inlcuding making good steel.
I personally think it is just a subjective choice by the GM.
Another issue to consider is sword style.
Sword shape is important, since it depent on both on the use and on the kind of metal used.
To make a longer blade you need a better iron, something more similar to steel, otherwise it'll get bent all the time.
I guess Conan 2e broadswords are meant to mimic Viking-like swords, which were heavy blades, but relatively light to wield due to the deeply fullered blades and heavy pommels.
Those were swords meant for chopping/slashing but retain some limited Piercing ability.
Conan OGL could also mimic 13th-14th cent. swords like the Oakeshott XIII.
In my games Cimmerians use different weapons, the Latenian-style swords.
Latenian Swords are the ancestors of Late Imperial Roman Spathas (which are the ancestors of Viking Broadswords).
The Gaulish Latenian swords were very long and heavy weapons, with flat blades and without proper heavy pommels.
Compared to (much later) Viking swords these weapons were stiffer, slightly longer, and even more focused on Chopping since it is very difficult to thrust with these long blades.
During the Republican times Romans were concerned that their soldier had good helmets in order to be protected from attacks from above by Celtic swords, but Roman literary sources are very clear saying that Gauls never make thrusting attacks, but only chopping and slashing attacks.
If you use Codex' triple stats and atk types (as I do) a difference is easy to make but, if not, you could mimic this shape by using the Broadsword template but changing the critical from 19-20/x2 to x3.
In other words, they are a bit like axes or looooooooooong machetes!
These long blades were easy to bend.
I attach here a figure of Latenian swords which were ritually bent.
This ritual was easily performed for Latenian swords offered in tombs and /or sanctuaries, a custom quite diffused among ancient Gauls and possible due to the reduced hardness of a metal which was nearer to what we call "Iron" than to what we call "steel".
If you want them to be "Iron" use the "primitive" template, or maybe simply reduce the HD/ hp (-3 hd, -1 hp).
HOWEVER, if we postulate that Cimmerians had a Medieval technological level, we could have them using Steel Latenian swords, instead of (more historical) Iron swords, and therefore leaving hd and hp as they are.