EN10216-2 Steam Boiler Tubes for Pressure Vessels
Jun 04, 2025
Core standards and scope of application
Standard specification
EN10216-2 is the general standard for seamless steel pipes for pressure equipment in Europe, specifically for boilers, pressure vessels and high-temperature and high-pressure piping systems in the petrochemical industry.
Application scenarios
Boiler components: water-cooled walls, superheaters, reheaters, air preheating pipes and steam pipes; Working parameters: Low-pressure boilers: working pressure ≤5.88MPa, temperature ≤450℃; High-pressure boilers: working pressure ≥9.8MPa, temperature 450℃~650℃.
Common materials and performance
1. Typical steel grades and characteristics
| Grade | Type | Features and Applications |
|---|---|---|
| P235GH | Carbon Steel | Low-cost basic pipe material, suitable for medium-low temperature and low pressure conditions |
| 15Mo3/WB36 | Molybdenum Alloy Steel | Excellent high temperature strength and creep resistance (≈ national standard 15CrMo) |
| 10CrMo910 | Chromium-Molybdenum Alloy Steel | Resistant to 650℃ high temperature corrosion, used for high pressure superheater tubes |
2. Key performance requirements High temperature strength: Need to pass the long-term creep test to ensure long-term high temperature stability; Sealing: 100% non-destructive testing (ultrasound + eddy current), water pressure test pressure ≥1.5 times the working pressure.
Specifications and process requirements
Size range
Outer diameter: 4.0mm~760mm (small diameter tubes are used for heat exchangers, large diameter tubes are used for main steam pipes);
Wall thickness: 0.5mm~50mm, high pressure conditions commonly use wall thickness ≥12mm.
Manufacturing process
Hot rolling/cold drawing seamless process, welding is prohibited (to avoid weld failure under high temperature and high pressure);
The surface needs shot peening or coating protection (such as aluminizing) to improve the ability to resist smoke corrosion.
