Product Item: Carbon Steel Tube Sheet
Material: ASTM A36, Carbon Steel
Outside Diameter: 1571 mm
Thickness: 45 mm
Hole Diameter: 19.25 mm
Groove Type: Double Grooved Inside

Source: https://www.landee.cn/carbon-steel-tube-sheets-astm-a36-od-1571-mm-thk-45-mm.html