ASME A-516/A-516M Markings verification ASME SA-20/SA-20M-2019 - Production Marking - Section 13. Plate shall be legibly marked with (eg.): The specification number: SA-516 . The manufacturer's name or brand: BCK. Grade: GR.70N. Heat number: 3-5642. Plate identifier: 111-1 . Heat treatment: MT. Additional: length, client, dimension, LTV... Eg. SA516 Grade 70 MT LTV Normalized: MT = material heat treated, see Section 20 of SA-20 2019. LTV = Supplementary S5 "Charpy V-Notch Impact Test", see Supplementary Requirement S5 of SA-516 2019. Code marking Code marking: Txxxx - Plate. Die stamp may be stamped on the thickness with T>= 6mm for carbon steel and T>= 12 mm for stainless steel unless otherwise by supplementary requirements. Dimensional and visual inspection Dimension/masses: ASME SA-20/20M - 2019 Section 14. Transfer markings Guide to transfer mar...