Capitol Manufacturing

  Forged Steel Threaded Fittings
1/8" - 4" Material ASTM A105; ASME SA105; A234, A350
1/8" - 2-1/2" Material ASTM A182 Grade F5, F9, F11 and F22
Class 2000, 3000 and 6000
 
90 Elbows Tees Crosses 45 Elbows Street Elbows Full & Half Couplings Reducers Bushings Caps Plugs
Capitol Manufacturing has built a solid reputation for manufacturing exceptional products for over 70 years. But the strength of a leader doesn't stop there. Manufacturing success also demands support from a world class organization - one that can provide outstanding quality and service. We at Capitol Manufacturing offer customers the strength of leadership in production quality combined with the service and systems experience of The Phoenix Forge Group. We look forward to serving you with the unparalleled product and service that you have every right to expect.

Cat. No. 497
Forged Steel Socket Weld Fittings
1/8" - 4" Material ASTM A105; ASME SA105; A234, A350
1/8" - 2-1/2" Material ASTM A182 Grade F5, F9, F11 and F22
Class 3000, 6000 and 9000
 
90 Elbows Tees Crosses 45 Elbows Couplings Reducers Half Couplings Caps Reducer Inserts
 

Forged Steel Unions

1/8" - 4" Material ASTM A105; ASME SA105; A234, A350
1/8" - 2-1/2" Material ASTM A182 Grade F5, F9, F11 and F22
Class 3000 and 6000
Threaded and Socket Weld - Class 3000 and 6000
 
Threaded Unions Socket Weld Unions
Lug Unions (Threaded & Socketweld)
 

Swage Nipples and Bull Plugs

Carbon Steel ASTM A234; ASME 23A
Stainless ASME/ASTM SA312 & SA182
Chrome & Low Temp ASME/ASTM SA335, 333, 182, 350
Nickel Alloy ASME/ASTM SB-161, 165, 163, 404, 464,622, 160, 164, 166, 408, 473, 619
 
Dimensions General Information
Tubing Dimensional Data
 

Steel Fittings Material Specifications

Steel Pipe Couplings Specifications

A.P.I. Line Couplings, API 5L
Standard Merchant Couplings ASTM A 865
X.H. AAR Couplings
X.H. Non-Recessed Couplings
 

Pipe Nipple Material Specifications

Pipe Nipple Material Specifications ASTM A53
Pipe Nipple Material Specifications ASTM A106
Pipe Nipple End Finishes

Forged Steel Fittings and Unions General Information