Forged Fittings
Horizon Steel N Alloy supplies premium high-pressure forged fittings engineered for severe industrial applications. Manufactured from solid metallic billets to ensure a dense, defect-free grain structure, our threaded and branch connection fittings deliver unparalleled fatigue resistance and burst strength in extreme chemical and thermal environments.
- ASME B16.11 & MSS SP-97 Compliant
- Class 2000#, 3000#, 6000# & 9000# Ratings
- Precision CNC Threading (NPT, BSPT, BSPP)
Available Materials & Grades
| Material Type | Forged Material Grades | International Standards |
|---|---|---|
| Stainless Steel | F304, F304L, F316, F316L, F316Ti, F321, F347, F904L | ASTM A182 |
| Carbon & Low Temp Steel | A105, A105N, A350 LF2, A350 LF3 | ASTM A105, ASTM A350 |
| Alloy Steel | F1, F5, F9, F11, F12, F22, F91 | ASTM A182 |
| Duplex & Super Duplex | F51 (UNS S31803), F53 (UNS S32750), F55 (Zeron 100) | ASTM A182 |
| High Nickel Alloys | Inconel 600/625, Hastelloy C276, Monel 400, Alloy 20 | ASTM B564, ASTM B462 |
Comprehensive Technical Specifications
| Specification Parameter | Detailed Range & Capabilities |
|---|---|
| Fitting Formats & Items | Threaded Elbows, Tees, Crosses, Hex Bushings, Square/Hex Plugs, Nipples (Hex, Swage), and Branch Connections (Weldolet, Threadolet, Sockolet). |
| Size Range (Nominal Bore) |
Standard Forgings (B16.11): 1/8" NB to 4" NB (DN6 to DN100) Branch Connections (Olets): 1/2" to 24" Run Pipe Sizes |
| Pressure Ratings (Class) |
Threaded Fittings: Class 2000, 3000, 6000 Socket Weld / Olets: Class 3000, 6000, 9000 |
| Thread Configurations | NPT (National Pipe Thread Tapered), BSPT (British Standard Pipe Tapered), BSPP (Parallel), PT, and custom instrument threading. |
| Manufacturing Method | Solid closed-die drop forging ensuring aligned grain flow, followed by multi-axis CNC lathe turning for exacting thread pitch and dimensional tolerances. |
| Dimensional Standards | ASME B16.11 (Forged Fittings), MSS SP-97 (Integrally Reinforced Forged Branch Outlet Fittings), BS 3799. |
| Testing, Inspection & Compliance | 100% Go/No-Go Thread Gauging, Magnetic Particle Inspection (MPI), Ultrasonic Testing (UT), Hydrostatic verification, and NACE MR0175 compliant for sour gas. |
Structural Types & Formats
Threaded Fittings (NPT/BSPT)
Elbows, tees, and crosses featuring precision-machined tapered threads. Ideal for highly volatile environments where hot-work (welding) is strictly prohibited due to fire hazards.
Olet Branch Connections
Integrally reinforced fittings (Weldolets, Threadolets, Sockolets) used to create robust 90-degree branches directly off a main header pipe without requiring a standard tee fitting.
Hex Plugs & Bushings
Solid forged hex and square head plugs for secure line termination. Flush and hex bushings provide a threaded reduction to safely adapt line sizes in confined spaces.
Forged Swage Nipples
Concentric and eccentric forged reducers specifically designed to transition flow from threaded to welded piping systems, or to bridge two different small-bore pipe diameters.