Leading Stockist of Alloy Steel Pipes, Fittings and Flanges


Stratstan is one of the world’s leading stockists of alloy steel flanges.

Our stock includes finished flanges, and also semi-finished flanges and forgings providing the flexibility to supply most requirements from stock:

Weld Neck, Blind, Socket Weld, Slip On, Lap Joint, RF and RTJ flanges

Material Specifications Grades Size Range Dimensional Standard
ASTM/ASME A/SA 182 F11, F22, F5, F9, F91 ½” – 12” (150 - 2500 lbs) ASME B16.5
ASTM/ASME A/SA 350  LF3 ½” – 16” (150 - 2500 lbs) ASME B16.5