Product Name: ASTM A106 Grade B Pipe Nipple
Design Standard: ANSI B16.11
Size: 3 Inch, DN80
Length: 250 mm
Wall Thickness: SCH 80
Material: Carbon Steel ASTM A106 Grade B
End Connection: NPT Threaded
Surface Treatment: Blackening

Source: https://www.landeepipefitting.com/astm-a106-grade-b-pipe-nipples-ansi-b16-11-3-inch-sch-80.html