Directly from Tilt:
"Stage One Handlebar is crafted to be the best balance of strength and price. As far as we know, these bars are the only T-bar available that is heat-treated after welding. Tilt's unique heat-treat process strengthens the material to decrease risk of bends and cracks. You get incredible strength at a fair pricepoint. If you're looking for steel bars, you honestly can't go wrong with the Stage One Handlebar."
Material: Heat-treated 4130 cro-moly steel
Size: 24" W X 27.5″ H
Steertube: 3D Formed
Clamp & Compression: Standard 1-¼"