304 Stainless Steel Flat Bar – 12″ x 2″ x 0.12″. STAINLESS STEEL FLAT BAR – It’s made of 304 stainless steel, sturdy and corrosion resistance, not easy to bend. Material: 304 Stainless Steel. SIZE – It’s stainless steel flat bar: 12″L x 2″W, and 0.12″ thickness, kindly use as a trim pice for a kitchen vent hood.