Haihao Group Supplies Low-Temperature ASTM A350 LF2 Flanges to Russian Client
Haihao Group has successfully delivered a batch of low-temperature carbon steel flanges to our Russian customer, meeting strict engineering, safety, and certification requirements. The order includes DN15 SCH80 CL150 welding neck flanges and DN25 CL150 lap joint flanges, both manufactured in full compliance with ASME B16.5 and ASTM A350 Grade LF2 specifications.
These products are designed for low-temperature pipeline applications, where high impact toughness and reliable sealing performance are essential. All items were produced according to the customer’s detailed MESC specifications and supported by complete inspection and certification documents.
ASTM A350 LF2 Class-1 welding neck flange supplied by Haihao Group
Products Delivered
1. Welding Neck Flange (WN Flange) – DN15 SCH80 CL150 RF
- Material: ASTM A350 Grade LF2, Class 1
- Standard: ASME B16.5
- Facing: Raised Face (RF)
- Schedule: SCH80
- Service: Low-temperature pipeline system
- MESC Code: 7662821521
- Certificates: ISO 10474 3.1 / EN 10204 3.1
This low-temperature WN flange is suitable for high-integrity welded connections and ensures excellent performance in cold environments.
ASTM A350 Grade LF2 lap joint flange with Galvanized and Epoxy Coating supplied by Haihao Group
2. Lap Joint Flange (LJ Flange) – DN25 CL150
- Material: ASTM A350 Grade LF2 + Galvanized + Epoxy Coating
- Standard: ASME B16.5
- Facing: Smooth Face
- Coating Specification: ASTM A153 Class B / BS729
- Corrosion Protection: Hot-dip galvanizing + epoxy coating
- Certificates: ISO 10474 – 3.1B
This galvanized lap joint flange combines low-temperature mechanical properties with reinforced corrosion resistance, ideal for pipeline systems requiring frequent dismantling or alignment adjustments.
Quality Assurance and Documentation
Haihao Group strictly followed the customer’s Vendor Document Requirements, providing:
- B07 – Vendor Declaration of Compliance
- K09 – Material Test Certificates (MTC 3.1)
- K10 – NACE Requirements (when applicable)
- Dimensional inspection reports
- Coating and surface treatment records
Our quality system ensures every product meets MESC SPE 76/100, 76/211, and all contractual requirements.
Why Customers Choose Haihao Group
- Certified low-temperature steel flanges for extreme environments
- Full compliance with ASME, ASTM, ISO, EN, MESC standards
- Advanced coating technologies for long-term corrosion resistance
- Global supply experience to Europe, Russia, Southeast Asia, and the Middle East
- Complete traceability with 3.1/3.1B certification
At Haihao Group, we ensure every shipment delivers exceptional value, reliability, and performance.