8 1/2 Qt. Tapered Sauce Pan, with HollowCore Handle. This 10 gauge, 11 3/4" diameter, sauce pan features tapered sides that are great for easy pouring and stirring. Designed with HT+ technology, an exclusive alloy engineered to be 30% harder than the 3004 alloy - the current industry standard in aluminum. The alloy is a proprietary combination of metals including iron, magnesium, copper and titanium. This unique blend allows the alloy to be heat-treated prior to the pan's formation. The heat treatment forms a crust along the surfaces of the metal creating a substrate that's incredibly hard and strong while maintaining the superior heat conductivity of the aluminum. Pans crafted from HT+ maintain their shape, resist dents and are less likely to warp - making it the perfect choice for natural aluminum cookware.