Metal culvert This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Forming Need metal culvert that is 10 ft. dia. and 40 ft. long. Need quote back by 10/5/4 with delivery by 10/15/4 to New Madrid, MO. Part Part Number: metal culvert Material: Alloy Steel Material Grade: corrugated metal Technical Specifications Category:Forming Dimensions0.0 x 0.0 inch Annual Usage:2.0 The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services and are members of the MFG.com community. For more information visit http://www.mfg.com. MFG.com performs a 5-point inspection on all engineered parts and RFQs to ensure quality and enhance your quoting experience Forming: The forming process in fabrication describes taking a material and changing its appearance physically that results in a different shape. The exception to this is Super-Plastic Forming where a plastic is not only formed but can be glued.