Reliable Socket Weld Fittings Engineered for Demanding Industrial Projects
In today’s high-pressure industrial environments, the reliability of every piping joint determines the long-term performance of an entire system. Haihao Group’s socket weld fittings are engineered to provide secure, leak-resistant, and vibration-proof connections, ideal for applications in oil & gas, petrochemical, power generation, and offshore industries.
Each fitting is precision-forged and machined according to ASME B16.11 and MSS-SP-97 standards, ensuring dimensional accuracy and consistent wall thickness throughout the production process.
ASME B16.11 and MSS SP-97 Socket Weld Fittings Manufactured by Haihao Group
Complete Range of Forged Fittings
Haihao Group supplies a complete portfolio of socket weld forged fittings, including:
- Elbows (45° and 90°) for directional flow control
- Equal and reducing tees for branch connections
- Full and half couplings for secure extensions
- Pipe caps for line termination
- Weldolets for branch reinforcement
These products are available in Class 3000 and Class 6000 pressure ratings, covering size ranges from ½ inch to 1½ inches, meeting the needs of both onshore and offshore piping systems.
Premium Materials and Standards Compliance
Our fittings are produced from ASTM A105 and A350 LF2 CL1 carbon steels, ensuring strength, toughness, and resilience under high-pressure and low-temperature conditions.
For critical operations exposed to corrosive media, we also manufacture NACE MR0175-compliant fittings, offering superior protection against hydrogen-induced cracking.
Each fitting is treated with anti-rust oil coating before shipment to guarantee surface protection during transport and storage.
Quality That’s Proven and Certified
Every Haihao product undergoes a series of rigorous inspections and quality control procedures, from raw material analysis to final dimensional verification.
Our testing capabilities include:
- Visual and dimensional inspection
- Non-destructive testing (UT & MPI)
- Hydrostatic and hardness testing
- Impact testing for LF2 components
All fittings are supplied with Mill Test Certificates (EN 10204 3.1) for full traceability and compliance with customer specifications.
Trusted by Global Engineering Projects
Over the years, Haihao Group has become a reliable partner for EPC contractors and end users around the world. Our socket weld fittings are widely used in:
- Oil & gas pipelines
- Refineries and chemical plants
- Offshore platforms
- Power and LNG facilities
With a robust manufacturing base, a skilled technical team, and decades of export experience, Haihao Group ensures that every shipment meets project schedules and performance expectations.
Commitment to Excellence
What sets Haihao apart is not just manufacturing precision—it’s our commitment to engineering reliability and customer satisfaction.
From material sourcing to final inspection, every stage is controlled under a strict ISO 9001:2015 quality system. We work closely with clients to provide customized fitting solutions for complex projects, ensuring efficiency, safety, and cost-effectiveness.