Stainless Steel (NB Pipes)

Nominal Bore (NB) is the European designation equivalent to NPS is DN (diamètre nominal/nominal diameter/Durchmesser nach Norm), in which sizes are measured in millimeters. NB is also frequently used interchangeably with NPS.

Specifications

Size: 1/2″ to 18″ (15 to 450 mm)
Thickness: 1.2 mm to 5 mm
Grade: 202, 304, 316, 409
Finish: 2B, No. 1, Matt, Mirror