Product Name: Carbon Steel End Cap, Boiler Head
Material: ASTM A105N (Cap Body); ASTM A234 WPB (Fitting)
Size: 36 * 12 Inch, DN900*DN300
Wall Thickness: 15.09 mm
Schedule: SCH 80
Pipe Standard: ASME B36.10
Manufacturing Process: Welding
End Connection: Flanged
Application: Heat Exchange

Source: https://www.landeepipefitting.com/carbon-steel-end-cap-astm-a105n-a234-wpb-36-12-in-sch-80.html