Premium Stainless Steel Pipe Fittings for Sour Service Delivered by Haihao Group
Haihao Group has successfully completed the production and shipment of a comprehensive range of stainless steel pipe fittings designed for demanding industrial and sour service applications. This order demonstrates our capability to supply both seamless and welded fittings with strict compliance to international standards.
Each stainless steel pipe fittings product is manufactured to ensure excellent corrosion resistance, precise dimensions, and long-term reliability in aggressive service environments.
Project Overview
This shipment includes a wide variety of stainless steel pipe fittings, covering elbows, tees, reducers, and pipe caps in different sizes and wall thicknesses.
Key Product Range:
- 90° Long Radius Elbows (Seamless & Welded)
- Equal Tees and Reducing Tees
- Concentric and Eccentric Reducers
- Pipe Caps
Specifications:
- Sizes: 2″ to 24″
- Wall Thickness: SCH 10S, SCH 40S, SCH 80S, SCH XS
- Standard: ASME B16.9
- Material: ASTM A403 WP316/316L
- Service Condition: Sour Service (including WP-WX grade for enhanced performance)
These stainless steel pipe fittings are designed to meet complex pipeline configurations and harsh operating conditions.

ASME B16.9 stainless steel pipe fittings ASTM A403 WP316L sour service
Designed for Sour Service Environments
The supplied stainless steel pipe fittings are specifically engineered for sour service applications, where resistance to corrosion and cracking is critical.
Key Advantages:
- Excellent resistance to hydrogen sulfide (H₂S) environments
- Enhanced protection against pitting and crevice corrosion
- Stable performance under high pressure and temperature
- Compliance with strict industry requirements
These features make stainless steel pipe fittings ideal for oil & gas and petrochemical systems.
Material Advantage: ASTM A403 WP316/316L
ASTM A403 WP316/316L is widely recognized for its superior corrosion resistance and mechanical properties.
Benefits:
- High resistance to chloride corrosion
- Excellent weldability and fabrication performance
- Suitable for both seamless and welded fittings
- Long service life in aggressive environments
With these properties, stainless steel pipe fittings provide reliable performance in critical pipeline systems.
Seamless and Welded Options for Flexible Design
This shipment includes both seamless and welded stainless steel pipe fittings, offering flexibility for different project requirements.
- Seamless fittings: Ideal for high-pressure applications
- Welded fittings: Cost-effective for large diameters
- WX grade fittings: Enhanced inspection and quality requirements
This combination ensures that stainless steel pipe fittings can be applied efficiently across a wide range of industrial scenarios.
Strict Quality Control and Testing
Haihao Group implements comprehensive quality control procedures for every batch of stainless steel pipe fittings.
Inspection Includes:
- Chemical composition analysis
- Mechanical property testing
- PMI (Positive Material Identification)
- Non-destructive testing (UT, PT, RT)
- Dimensional inspection
Each stainless steel pipe fittings product is fully traceable and inspected to ensure compliance with project specifications.
Applications
The stainless steel pipe fittings are widely used in:
- Oil & gas pipeline systems
- Petrochemical plants
- Offshore engineering
- Chemical processing industries
Their corrosion resistance and durability make stainless steel pipe fittings essential components in modern industrial pipelines.
This successful shipment highlights Haihao Group’s expertise in manufacturing high-quality stainless steel pipe fittings for complex and demanding applications. With advanced production capabilities and strict quality assurance, we continue to provide reliable piping solutions worldwide.
If you are looking for a trusted supplier of stainless steel pipe fittings, Haihao Group is your reliable partner.

