The Mark XXX Armor (codenamed Blue Steel) was Tony Stark's thirtieth Iron Man suit and was a prototype version of the Mark XXXIII. The Mark XXX was able to endure long periods of time without running out of power. It was a part of the Iron Legion. Along with the rest of the Iron Legion, this suit self-destructed following the "Clean Slate Protocol".
The Blue Steel Armor was called, along with the rest of the Iron Legion, to help Tony Stark and James Rhodes during their fight against Aldrich Killian and his Extremis Soldiers. During the course of the fight a number of armors were destroyed, though they eventually managed to eliminate all of the Extremis Soldiers. At the end of the battle the remaining suits that were not destroyed by Extremis Soldiers were destroyed when Stark activated the Clean Slate Protocol, including the Mark XXX. 
The Mark XXX can go for long periods of time without recharging. It has blades hidden in the arms that can be used in battle, a design that was carried over to the Mark XXXIII.
| Mark I • Mark II • Mark III • Mark IV • Mark V • Mark VI • Mark VII|
Mark VIII • Mark IX • Mark X • Mark XI • Mark XII • Mark XIII • Mark XIV • Mark XV • Mark XVI • Mark XVII •
Mark XVIII • Mark XIX • Mark XX • Mark XXI • Mark XXII • Mark XXIII • Mark XXIV • Mark XXV • Mark XXVI •
Mark XXVII • Mark XXVIII • Mark XXIX • Mark XXX • Mark XXXI • Mark XXXII • Mark XXXIII • Mark XXXIV •
Mark XXXV • Mark XXXVI • Mark XXXVII • Mark XXXVIII • Mark XXXIX • Mark XL • Mark XLI
Mark XLII • Mark XLIII • Mark XLIV/Veronica • Mark XLV • Mark XLVI • Mark XLVII • Mark XLIX • Mark L • Mark LXXXV
|Mark I • Mark II/Iron Patriot • Mark III • Mark IV • Mark V • Mark VI • Mark VII|
|Mark I • Mark II|
|Spider-Man Suit • Iron Spider Armor|