Product Name: ANSI B16.9 45 Degree Elbow
Type: 45 Degree Elbow
Design Standard: ANSI B16.9
Size: 16 Inch, DN400
Wall Thickness: SCH 40
Material: Carbon Steel ASTM A234 WPB
End Connection: Butt Weld
Surface Treatment: Blackening

Source: https://www.landeepipefitting.com/ansi-b16-9-45-degree-elbow-astm-a234-wpb-16-in-sch-40-bw.html