Haihao Group Delivers EN 1092-1 304L Welding Neck Flanges for Russian Customer
Haihao Group has successfully completed the production and shipment of a batch of EN 1092-1 304L flange products for a customer in Russia. The order consists of DN100 PN16 Type 11/B1 welding neck flanges manufactured from X2CrNi18-9 (Material No. 1.4307 / ASTM 304L equivalent) in full compliance with the EN 1092-1 standard.
This shipment highlights Haihao Group’s capability to manufacture European standard flanges with strict dimensional accuracy and reliable material quality for industrial piping projects across international markets.
Order Details
Product: Welding Neck Flange (Type 11/B1)
Size: DN100 PN16
Material: X2CrNi18-9 (1.4307 / 304L Stainless Steel)
Standard: EN 1092-1
Destination: Russia
The flanges were produced according to the customer’s technical specifications and prepared for export after comprehensive quality inspections.
Stainless steel EN 1092-1 304L weld neck flange manufactured by Haihao Group
Why EN 1092-1 304L Flanges Are Widely Used
The EN 1092-1 304L flange is one of the most commonly specified flange types in European-standard piping systems. Its welding neck design provides a gradual transition between the flange and pipe, reducing stress concentration and improving structural strength under pressure and temperature fluctuations.
Material 1.4307 (X2CrNi18-9), commonly known as 304L stainless steel, contains a lower carbon content than standard 304 stainless steel. This characteristic minimizes carbide precipitation during welding, making the material particularly suitable for fabricated piping systems that require excellent corrosion resistance after welding.
Because of these advantages, the EN 1092-1 304L flange is widely selected for:
- Water treatment facilities
- Chemical processing plants
- Food and beverage production
- Pharmaceutical manufacturing
- HVAC systems
- General industrial piping
- Marine engineering projects
Precision Manufacturing Ensures Reliable Performance
Every EN 1092-1 304L flange supplied by Haihao Group undergoes carefully controlled manufacturing procedures to ensure full compliance with European dimensional tolerances and material requirements.
Production includes:
- Certified stainless steel raw materials
- CNC machining for precise dimensions
- Accurate facing and bevel machining
- Bolt hole alignment inspection
- Surface finish verification
- Material identification and traceability
These processes help ensure excellent fit-up during installation while maintaining dependable sealing performance throughout the service life.
Strict Quality Inspection Before Shipment
Quality remains a priority throughout production. Before export, each EN 1092-1 304L flange passed comprehensive inspections, including:
- Chemical composition verification
- Mechanical property testing
- Dimensional inspection
- Visual surface examination
- Flatness and facing inspection
- Marking verification
- Packing inspection
Complete inspection documentation can also be provided according to project requirements, including EN 10204 3.1 Material Test Certificates.
Supporting International Pipeline Projects
Russia continues to require high-quality stainless steel piping components for industrial modernization, water infrastructure, energy facilities, and manufacturing projects. Haihao Group has extensive experience supplying European-standard flanges, fittings, and pipes to customers in Russia and many other international markets.
In addition to EN 1092-1 304L flange products, Haihao Group manufactures:
- Welding Neck Flanges
- Slip-On Flanges
- Blind Flanges
- Threaded Flanges
- Socket Weld Flanges
- Lap Joint Flanges
- Plate Flanges
- Stainless steel, carbon steel, alloy steel, duplex, and nickel alloy flanges
Our products comply with EN, ASME, ASTM, DIN, JIS, API, and GOST standards to meet the needs of global industrial projects.
Haihao Group-Your Trusted Flange Manufacturing Partner
With more than 40 years of manufacturing experience, Haihao Group supplies high-quality pipeline products to customers in over 100 countries. From standard flanges to customized solutions, we combine advanced manufacturing equipment, strict quality control, and responsive technical support to deliver products that meet international standards and project schedules.
If your project requires EN 1092-1 304L flange products or customized stainless steel flanges, Haihao Group is ready to provide competitive solutions, fast quotations, and dependable worldwide delivery.