Introduction
Socket welded fittings are forged pipe fittings designed for small-diameter, high-pressure piping systems. The pipe is inserted into a recessed socket and then fillet welded around the joint, forming a strong and leak-resistant connection.
These fittings are widely used in industries requiring high reliability and pressure safety, including oil & gas, chemical processing, power generation, and hydraulic systems.
Compared with threaded fittings, socket weld fittings provide superior sealing performance and are more suitable for high-pressure and high-temperature working conditions.
Product Types
We supply a full range of socket welded fittings:
- Socket Weld Elbow (45° / 90°)
- Socket Weld Tee (Equal / Reducing)
- Socket Weld Coupling (Full / Half)
- Socket Weld Union
- Socket Weld Cap
- Socket Weld Reducer Insert
Material Options
Available materials include:
- Carbon Steel (ASTM A105)
- Stainless Steel (304 / 316 / 316L)
- Alloy Steel (F11 / F22 / F91)
- Duplex Stainless Steel (custom available)
These materials ensure excellent mechanical strength, corrosion resistance, and long service life under harsh industrial environments.
Key Features
- High pressure resistance and structural integrity
- Leak-proof welded connection
- Suitable for small-bore piping systems (typically ≤ 2″)
- Excellent fatigue resistance under vibration conditions
- Easy alignment before welding
- Long service life with minimal maintenance
Pressure Ratings & Standards
Our socket welded fittings comply with international standards:
- ASME B16.11 (Forged Fittings)
- ASTM material standards
- Pressure Class: 3000 / 6000 / 9000 PSI
Applications
Socket welded fittings are widely used in:
- Oil & Gas pipelines
- Chemical and petrochemical plants
- Power generation systems
- Hydraulic and pneumatic systems
- Boiler and heat exchanger lines
- High-pressure instrumentation piping
Advantages
Compared with threaded fittings, socket welded fittings offer:
- Higher joint strength
- Superior sealing performance (no thread leakage risk)
- Better resistance to vibration and pressure cycling
- Reduced maintenance requirements
Quality Control
Each product is strictly inspected before delivery:
- Chemical composition testing of raw materials
- Dimensional inspection (ASME compliance)
- Hydrostatic pressure testing
- NDT inspection (upon request)
- Surface finish and marking verification
Packaging & Delivery
- Anti-corrosion oil protection
- Plastic caps on both ends
- Wooden case or carton packaging
- OEM branding and labeling available
Conclusion
Socket welded fittings are a reliable solution for high-pressure, small-diameter piping systems requiring safety and durability. With precision forging and strict quality control, SHAANXI GOLD-STONE delivers high-performance socket weld fittings for global industrial applications.