Talk:Rhino (Warframe)/@comment-190.110.141.1-20130521210926/@comment-9210022-20130522040110

Iron skin work by reducing all incoming damage by 80%, while steel fiber increase armor that reduce health damage, so when taking health damage, I do believe they "stack" in that sense.

Of course, this is all spectaculation. Need more testing to be sure.

Note: Steel Fiber only truely work great along with Vitality mod. Unless you have enough mod points for both, it's not advised to install only Steel Fiber.