Forged Steel Fittings – Socket Weld & Threaded
Brandfittings produces a complete line of ASME B16.11 forged steel fittings in socket weld and threaded (NPT) connections — elbows, tees, crosses, couplings, half couplings, unions, caps, bushings, plugs and nipples. Forged from ASTM A105 carbon steel, A182 stainless (F304/304L, F316/316L), alloy and A350 LF2 low-temperature grades, our forged fittings are built for high-pressure service in petrochemical, power and offshore applications.
As a factory in Mengcun County, Hebei — China's Pipe Fittings Capital — we supply forged fittings from 1/8″ to 4″ (DN6–DN100) in Classes 2000, 3000, 6000 and 9000, with full material traceability and MTC (EN 10204 3.1) on every order.
Socket Weld vs Threaded (NPT)
- Socket weld (SW) — the pipe is inserted into the socket and fillet-welded. Leak-tight and strong, it is preferred for high-pressure, high-temperature and vibration-prone lines where leakage cannot be tolerated.
- Threaded (NPT) — the fitting screws onto threaded pipe. Fast to install and easy to dismantle for maintenance, it suits lower-pressure systems, small-bore instrument lines and locations where welding is not practical.
Our detailed comparison — socket weld vs threaded forged fittings — covers pressure limits, installation and when to choose each.
Specifications
| Parameter | Details |
|---|---|
| Type | Elbow 90°/45°, Tee, Cross, Coupling, Half Coupling, Union, Cap, Bushing, Plug, Nipple |
| Size Range | 1/8″ – 4″ (DN6 – DN100) |
| Pressure Class | Class 2000, Class 3000, Class 6000, Class 9000 |
| Connection | Socket Weld (SW), Threaded (NPT) |
| المعايير | ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95, BS 3799 |
| Documentation | MTC EN 10204 3.1, heat numbers, third-party inspection reports (SGS/BV/TÜV) |
Available Materials
| Material Grade | Standard | Typical Application |
|---|---|---|
| A105 | ASTM | Forged carbon steel, general purpose |
| A182 F304/304L | ASTM | Corrosion-resistant, food & pharma |
| A182 F316/316L | ASTM | Marine, chemical, acid service |
| A182 F5 / F9 / F11 / F22 / F91 | ASTM | High temperature / alloy |
| A350 LF2 | ASTM | Low temperature service |
A105 forged carbon steel is the workhorse for general high-pressure service; stainless F304/F316 handles corrosive and hygienic media; alloy and LF2 grades cover high-temperature and low-temperature duty. Our material guide can help with selection.
Applications by Industry
- النفط والغاز — instrument lines, sampling systems and small-bore high-pressure piping. Explore oil & gas pipe fittings →
- Chemical Processing — corrosive media in stainless forged fittings. Explore chemical industry fittings →
- توليد الطاقة — high-temperature alloy fittings for steam and boiler trim. Explore power generation fittings →
- Shipbuilding & Marine — Class-approved small-bore systems. Explore marine fittings →
- معالجة المياه — dosing and instrument connections. Explore water treatment fittings →
Manufacturing & Quality Control
Forged fittings are produced by hot forging from certified billet, then heat-treated (normalizing or quench & temper as required) and precision-machined on CNC lathes. Threads are cut to NPT tolerance and gauged; socket bores are machined to ASME B16.11 dimensions. Every fitting is pressure-rated by class, with the grade and heat number stamped on the body and mirrored on the MTC (EN 10204 3.1). Third-party inspection by SGS, BV or TÜV can be arranged before shipment.
Customization Options
- Special materials — duplex, super-duplex and nickel alloys on request
- Custom marking — logo, grade, heat number per your specification
- Surface treatment — zinc plating, PTFE coating, pickling & passivation
- Packing — cartons or wooden cases per export standards
Why Choose Brandfittings Forged Fittings?
- Socket weld & threaded in one source – Full connection types
- Class 2000 to 9000 – Broad pressure range
- 11+ fitting types – Elbows, tees, crosses, couplings, unions, caps, bushings, plugs, nipples
- Precision machining – Tight tolerances per ASME B16.11
- Certified quality – ISO 9001 / ISO 14001 / CCS / TS certified facility
Check current price levels in our Cangzhou pipe fittings price reference.
Frequently Asked Questions
What is the difference between socket weld and threaded forged fittings?
Socket weld fittings are fillet-welded over the pipe end, giving a strong, leak-tight joint for high-pressure and vibration-prone service. Threaded (NPT) fittings screw onto the pipe — faster to install and easy to dismantle, but limited to lower pressure classes and smaller sizes.
What pressure classes do you supply?
Class 2000, Class 3000, Class 6000 and Class 9000, in sizes from 1/8″ to 4″ (DN6–DN100), per ASME B16.11.
What types of forged fittings are available?
90°/45° elbows, tees, crosses, couplings, half couplings, unions, caps, bushings, plugs and nipples — 11+ fitting types in both socket weld and threaded connections.
What standards do your forged fittings comply with?
ASME B16.11, MSS-SP-79, MSS-SP-83, MSS-SP-95 and BS 3799. Every order ships with an MTC per EN 10204 3.1.
What are your lead times?
Standard sizes in stock ship in 7–10 days. Production orders take 30–45 days, and special material or custom items 45–60 days, depending on class, material and quantity.