Haihao Group has completed the shipment of a batch of SA 516 Gr.70N normalized steel plates to an Italian customer. These plates will be used for the fabrication of branch connections and pressure components in high-reliability environments. All materials were produced according to SA 516 standards, heat-treated for stable mechanical properties, and supplied with full traceable certification.
The steel plates underwent strict quality verification, including impact testing at −29 °C, 100% ultrasonic testing, and EN 10204 3.1 certification, fully meeting the technical requirements of the Italian engineering project.

SA 516 Gr.70N normalized steel plates with EN 10204-3.1 certification supplied by Haihao Group
Product Specifications
Heat Treatment & Certification
- Normalized heat treatment (N) ensuring stable mechanical strength
- Supplied with MTC EN 10204 3.1
- Material impact-tested at −29 °C, minimum absorbed energy ≥27 J
- For thickness ≥38 mm: 100% UT Examination per ASTM A578 Level B
- Carbon Equivalent (CE) < 0.42, suitable for welding applications
Delivered Steel Plate Dimensions (SA 516 Gr.70N)
| Dimensions (mm) | Material | Standard | Description |
|---|---|---|---|
| 2850 × 2850 × 80 | SA 516 Gr.70N | SA 516 | Steel plate for branch fabrication |
| 2820 × 7400 × 75 | SA 516 Gr.70N | SA 516 | Large-size pressure vessel plate |
| 1820 × 7400 × 75 | SA 516 Gr.70N | SA 516 | Normalized carbon steel plate |
| 1830 × 7400 × 75 | SA 516 Gr.70N | SA 516 | Heavy plate for connection fittings |
| 1820 × 7400 × 20 | SA 516 Gr.70N | SA 516 | Medium-thickness steel plate |
| 2650 × 2650 × 30 | SA 516 Gr.70N | SA 516 | General structural plate |
| 500 × 650 × 30 | SA 516 Gr.70N | SA 516 | Custom-size steel block |
| 500 × 650 × 30 | SA 516 Gr.70N | SA 516 | Custom-size steel block |
| 250 × 250 × 30 | SA 516 Gr.70N | SA 516 | Small-format plate |
| 2000 × 2000 × 5 | SA 516 Gr.70N | SA 516 | Thin plate for fabrication |
| 1000 × 1000 × 10 | SA 516 Gr.70N | SA 516 | Small-size Gr.70N plate |
Production Schedule (Mill): 2025/08/12
Each plate was produced under strict process control to ensure dimensional accuracy and consistent mechanical properties for branching component fabrication.
High-Performance SA 516 Gr.70N for European Pressure Applications
SA 516 Gr.70N is widely used in the European market for:
- Pressure vessel manufacturing
- Boiler fabrication
- Branch connections and nozzle reinforcement pads
- Structural components exposed to low-temperature service
- Petrochemical and refinery equipment
With a normalized heat treatment, enhanced toughness, and superior weldability (CE < 0.42), these plates meet demanding technical requirements for Italian industrial projects.
Quality Assurance and Full Traceability
Haihao Group places strong emphasis on material control and inspection.
This shipment includes:
- EN 10204 3.1 Mill Test Certificates
- Impact test reports (−29 °C, ≥27 J)
- UT reports according to ASTM A578 Level B
- Heat treatment records
- Dimensional inspection reports
- Raw material traceability documentation
With complete documentation and material traceability, the customer can seamlessly integrate the plates into project manufacturing workflows.
Committed to Global Engineering Projects
Haihao Group continues to support European clients with high-quality steel materials and piping components. Our supply scope covers:
- Branch connections (weldolets, sockolets, threadolets)
- Pressure vessel plates (SA 516 series, SA 387, stainless steel plates)
-
Pipe fittings (elbows, tees, reducers)
-
Flanges and customized fabricated components
By combining advanced manufacturing capacity with strict quality management, Haihao Group ensures stable, reliable supply for international EPC contractors and industrial end users.
SA 516 Gr.70N normalized steel plates with EN 10204 3.1 certification supplied by Haihao Group

