Narrow Parallel Flange Beams Narrow Parallel Flange Beams ASTM A36 NARROW PARALLEL FLANGE BEAM EN 10025 S235JR/S235J0/S235J2 NARROW PARALLEL FLANGE BEAM EN 10025 S275JR/S275J0/S275J2 NARROW PARALLEL FLANGE BEAM EN 10025 S355JR/S355J0/S355J2 NARROW PARALLEL FLANGE BEAM