Fittings and Flanges

U.S. Steel Pipe provides a complete line of fittings, flanges and related items to complement our seamless and welded pipe products.

Our fitting and flange inventories are available in all common Carbon, Alloy and Stainless steel sizes and specifications.  Commodities available include 45’s, 90’s, 180’s, Reducers, Couplings, Caps, Y’s Tee’s, Laterals, O-lets, Plugs, and Unions in specifications SA-182, SA-234, SA-860, SA-420, and SA-105.

Seamless and Welded Fittings

  • Size Range: ¼” through 48” OD
  • All scheduled walls & heavier
  • All pressure ratings
  • Products available in Carbon, High-yield, Chrome-moly and Stainless Steel
  • Specifications & Grades:
    • SA-182, SA-234, SA-860, SA-420, SA-105
    • Grades: WPB, WPC, Y42 through Y65
    • WP11, WP22, WP91 F304 through F347 also in L & H grade LF2 & LF3
    • Commodities: 45’s, 90’s, 180’s, reducers, couplings, caps, Y’s, T’s, laterals, o-lets, plugs, unions

Flanges

  • Size Range: ¼” through 48” OD
  • All scheduled walls & heavier
  • All pressure ratings
  • Products available in Carbon, High-yield, Chrome-moly and Stainless Steel
  • Specifications & Grades:
    • SA-105, SA-182, SA-350, SA-694, MSS, ANSI (Series A & B)
    • Grades: F5 Through F91, WPHY, Y42 through Y65 F304 through F347, also in L & H grade LF2 & LF3
    • Commodities: weld necks, long weld necks, slip-ons, RTJ, blind, orifice, raised or flat-faced