Haihao Group supplies high-quality St.20 3.5D bends to Russian clients
Haihao Group, a global leader in pipe fittings manufacturing, is proud to announce the successful completion of a customized order for St.20 3.5D bends (42×5 mm) for a Russian client.
Key Technical Specifications of the St.20 3.5D Bends
Material: St.20 steel (TU 14-3r-55-2001 standard)
- A low-carbon structural steel with excellent weldability and ductility, St.20 ensures robust performance in high-pressure environments.
- Compliance with TU 14-3r-55-2001 guarantees material consistency for steam boiler and pipeline systems.
St.20 3.5D bends
Bend Geometry:
- Bend radius: Not less than 3.5D (D = 42 mm)
- Straight sections after the bend: Not less than 600 mm on both sides
Dimensions:
- Outer Diameter (D): 42 mm
- Wall Thickness: 5 mm
- Angle: 90°, critical for directional changes in pipelines.
Why Choose Haihao Group for St.20 3.5D Bends?
1. Advanced Manufacturing Capabilities
Our state-of-the-art facilities in China specialize in:
- Hot Induction Bending: Achieves precise radii (3.5D, 5D, 10D, etc.) with minimal wall thinning.
- Customization: Tailored straight sections (≥600 mm) and angles to match project-specific designs.
2. Stringent Quality Control
Every St.20 3.5D bend undergoes:
- Chemical & Mechanical Testing: Ensures compliance with St.20’s tensile strength (≥375 MPa) and impact resistance.
- NDT Inspections: Ultrasonic (UT) and radiographic (RT) testing to eliminate defects.
- Dimensional Verification: Laser-based measurements guarantee ±1 mm tolerance for radius and straight sections.
3. Global Certifications
- ISO 9001, API 5L, and CE/PED certifications validate our adherence to international standards.
- TU 14-3r-55-2001 compliance is rigorously audited for Russian market requirements.
Quality inspection of St.20 3.5D bend
Applications of St.20 3.5D Bends
Ideal for industries demanding reliability in harsh conditions:
- Oil & Gas: Pipeline networks, refineries, and offshore platforms.
- Power Generation: Steam systems and boiler installations.
- Chemical Processing: Corrosion-resistant setups for acidic/alkaline environments.
Client Success Story: Russian Energy Sector
This order marks Haihao Group’s third collaboration with a major Russian energy firm. By prioritizing:
- On-Time Delivery: Streamlined production cycles (7 days) for urgent projects.
- Technical Support: Multilingual engineers provided real-time guidance on welding procedures and installation.
Contact Haihao Group Today
With 40+ years of expertise, we supply St.20 3.5D bends and other pipe fittings to over 50 countries. Request a quote or technical consultation at: Email:sales@haihaogroup.com