Corten Steel Charcoal BBQ Grill For Sale - cortenbbq.com. charcoal rusty corten bbq-Corten Steel BBQ Grill. Rusty Corten Steel Outdoor Charcoal Grill. Type. outdoor fire grill: Material: C orten steel . Fuel: Wood,Charcoal lump. Size 102cm x H 46cm(40" x 18" High) Base diameter is 21" (Be Customized) Thickness. 2.0-4.0 mm: Surface treatment.