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Haihao Group Supplies ASTM A234 WP11 Tee and ASTM A403 WP316L Reducer for Russian Industrial Project
Haihao Group recently completed the successful production and shipment of a batch of alloy steel and stainless steel pipe fittings for a Russian customer. The order included ASTM A234 WP11 equal tee SCH160 and ASTM A403 WP316L concentric reducer SCH80S, both manufactured according to ASME B16.9 requirements and subjected to strict inspection procedures before delivery.
This shipment once again demonstrates Haihao Group’s capability in supplying high-quality industrial pipe fittings for demanding international projects involving low-temperature environments, corrosion resistance requirements, and pressure-critical piping systems.
Product Details of the Shipment
| Product | Size | Material | Standard | Additional Testing | Surface | Packaging |
| Equal Tee | 1″ SCH160 | ASTM A234 GR.WP11 | ASME B16.9 | -20°C impact test, hydrostatic test | Black painted | Plastic caps |
| Concentric Reducer | 1 1/2″ × 1″ SCH80S | ASTM A403 GR.WP316L | ASME B16.9 | IGC 262 test, hydrostatic test | — | Plastic caps |
The fittings were prepared for industrial piping applications where both mechanical strength and corrosion resistance are essential.
ASTM A234 WP11 equal tees and ASTM A403 WP316L concentric reducers manufactured by Haihao Group
ASTM A234 WP11 Equal Tee for High-Temperature Service
The ASTM A234 WP11 equal tee SCH160 supplied by Haihao Group is manufactured from chromium-molybdenum alloy steel, which is widely used in high-temperature and high-pressure piping systems.
Advantages of ASTM A234 WP11 Fittings
- Excellent creep resistance at elevated temperatures
- Reliable mechanical strength under pressure
- Good oxidation resistance
- Suitable for refinery and power plant applications
- Long service life in demanding industrial environments
The SCH160 wall thickness provides additional pressure-bearing capability, making this fitting suitable for critical pipeline systems.
To satisfy the Russian customer’s requirements, Haihao Group arranged:
- Low-temperature impact testing at -20°C
- Hydrostatic pressure testing
- Dimensional inspection
- Surface quality verification
The fittings were coated with black paint to improve corrosion protection during transportation and storage.
ASTM A403 WP316L Concentric Reducer for Corrosion Resistance
The shipment also included a ASTM A403 WP316L concentric reducer SCH80S, manufactured from low-carbon austenitic stainless steel.
WP316L stainless steel is widely recognized for its:
- Excellent corrosion resistance
- Resistance to chloride environments
- Good weldability
- Stable performance in chemical processing systems
The customer specifically required the fitting to pass the IGC 262 intergranular corrosion test, which is commonly requested for stainless steel products used in corrosive environments.
Why IGC 262 Testing Matters
IGC testing evaluates the susceptibility of stainless steel to intergranular corrosion after welding or heat exposure. Passing this test confirms the material’s resistance to corrosion along grain boundaries, helping ensure long-term pipeline reliability.
Haihao Group carefully controlled raw materials, heat treatment, and inspection procedures to meet the project specifications.
ASME B16.9 Pipe Fittings Manufactured by Haihao Group
Haihao Group supplies a full range of ASME B16.9 butt weld fittings for international projects across oil & gas, petrochemical, offshore, energy, and industrial sectors.
Products Available
- Equal tees
- Reducing tees
- Concentric reducers
- Eccentric reducers
- Long radius elbows
- Short radius elbows
- Pipe caps
- Return bends
Materials Available
Carbon Steel
- ASTM A234 WPB
- ASTM A420 WPL6
Alloy Steel
- ASTM A234 WP11
- ASTM A234 WP22
- ASTM A234 WP91
Stainless Steel
- ASTM A403 WP304/L
- ASTM A403 WP316/L
- Duplex stainless steel
Strict Quality Control for Export Projects
Every export order processed by Haihao Group undergoes comprehensive inspection procedures to ensure compliance with customer requirements and international standards.
Inspection Services Include
- PMI testing
- Hydrostatic testing
- Impact testing
- Intergranular corrosion testing
- Dimensional inspection
- Surface examination
- Material traceability verification
The company also supports third-party inspection services such as SGS, BV, TUV, and customer-designated agencies.
Reliable Packaging and International Delivery
To protect the fittings during international shipment, plastic caps were installed on pipe ends to prevent contamination and mechanical damage. Proper export packaging helps maintain product quality during long-distance transportation to overseas project sites.
Haihao Group has extensive export experience serving customers in:
- Russia
- Europe
- Southeast Asia
- Middle East
- South America
Why Global Customers Choose Haihao Group
Customers choose Haihao Group because of:
- Stable product quality
- Fast production response
- Rich export experience
- Competitive pricing
- Comprehensive inspection capability
- Technical support for customized projects
Whether the requirement involves alloy steel fittings for high-temperature systems or stainless steel fittings for corrosion-resistant applications, Haihao Group provides dependable industrial piping solutions.
Contact Haihao Group for Pipe Fittings Solutions
If you are searching for a reliable supplier of ASTM A234 WP11 equal tee SCH160 or ASTM A403 WP316L concentric reducer SCH80S, Haihao Group can support your project with professional manufacturing and export services.
Our team is ready to provide quotations, technical documentation, and customized solutions according to your project specifications.
FAQ
What is ASTM A234 WP11 used for?
ASTM A234 WP11 fittings are commonly used in high-temperature and high-pressure piping systems such as power plants, refineries, and petrochemical facilities.
Why choose ASTM A403 WP316L stainless steel fittings?
WP316L offers excellent corrosion resistance, especially in chloride-containing environments, and provides good weldability and long-term durability.
What is IGC 262 testing?
IGC 262 testing evaluates stainless steel resistance to intergranular corrosion, which is important for welded piping systems operating in corrosive environments.
What does SCH160 mean for pipe fittings?
SCH160 indicates a heavy wall thickness suitable for higher pressure applications compared with standard schedules.
Can Haihao Group provide third-party inspection?
Yes. Haihao Group supports third-party inspections including SGS, BV, TUV, and customer-appointed inspection agencies.