Non-Stick Baking Tray, Carbon, Grey, 35 x 25 cm & Non-Stick Baking Tray, Carbon, Grey, 24 x 18 cm. Product 1: A STURDY OVEN ESSENTIAL: this 1 mm-thick carbon steel baking tray resists warping and rust, and is oven/grill safe to 220°C (428°F).