Forged steel flanges:

* asme/ANSI b16.5: Welding neck flange, slip-on flange, blind flange, high hub blind flange, socket weld flange. Lapjoint flange, threaded flange. Ring type joint flange.
Pressure class: 150, 300, 400, 600, 900, 1500, 2500

* asme/ANSI b16.47: Welding neck flange, blind flange. (series a & b)
Pressure class: 75, 150, 300, 400, 600, 900

* asme/ANSI b16.36: (orifice flanges) welding neck flange, slipon flange, threaded flange.
Pressure class: 300, 400, 600, 900, 1500, 2500

* ASTM/ANSI b16.48: ( figure-8 blanks)
Pressure class: 150, 300, 400, 600, 900, 1500, 2500

* mss sp44: Welding neck flange, blind flange.
Pressure class: 300, 400, 600, 900

* API 6A: Welding neck flange, thread flange, blind flange.
Pressure: 2000psi, 3000psi, 5000psi, 10000psi, 15000psi, 20000psi, 25000psi

Material:
ASTM a105; ASTM a350, a694 f42/f46/f52/f60/f65
ASTM a182 f304/304l, f316/316l, f321, f310,
ASTM a 182 f51/f53/f55

* size: 1/2"-48"