Product Name: ASTM A234 WPB Pipe Elbow, 45/90 Degree
Standard: ASME B16.9
Material: Carbon Steel ASTM A234 WPB
Size: 6 Inch, DN150
Schedule: SCH 40
Ends: Butt Weld
Bend Radius: Long or Short Radius, LR, SR

Source: https://www.landeepipefitting.com/astm-a234-wpb-pipe-elbows-asme-b16-9-45-90-deg-6-inch-bw.html