EN 10216-2 Seamless Steel Tube
Grade:1.7335 (13CrMo4-5)
Product Type: Seamless Steel Pipe
Manufacturing Process: Hot Rolled / Cold Drawn
Delivery Condition:Normalized (+N) or Normalized & Tempered (+NT)
EN 10216-2 specifies the technical delivery conditions for seamless steel tubes for pressure purposes. EN 10216-2 Seamless Steel Tube are engineered for elevated temperatures and/or high internal pressures in applications such as boilers, heat exchangers, and pipelines.
Manufactured through a controlled process of piercing, elongation, and finishing, these tubes offer superior mechanical properties, excellent dimensional accuracy, and reliable performance in demanding thermal and pressure environments.
product information
This standard covers a range of non-alloy and alloy steel grades suitable for various temperature ranges. Key parameters include:
| Parameter | Specification |
|---|---|
| Standard | EN 10216-2 (Replaces the former DIN 17175) |
| Product Form | Seamless, circular cross-section steel tubes |
| Manufacturing Process | Hot-finished (HF) or cold-finished (CF) |
| Outside Diameter (OD) | HF: 10.2 mm to 711 mm; CF: 10.2 mm to 273 mm (Standard Range) |
| Wall Thickness | Up to 80 mm (dependent on OD and grade) |
| Length | Random or fixed lengths, typically up to 12-18 meters |
Chemical Composition
| Element | Standard Requirement |
|---|---|
| Carbon (C) | ≤ 0.17 % |
| Silicon (Si) | 0.10 - 0.35 % |
| Manganese (Mn) | 0.40 - 1.00 % |
| Phosphorus (P) | ≤ 0.025 % |
| Sulfur (S) | ≤ 0.020 % |
| Chromium (Cr) | 0.70 - 1.15 % |
| Molybdenum (Mo) | 0.40 - 0.60 % |
Mechanical Properties of EN 10216-2 Seamless Steel Tube
| Property | Required Value |
|---|---|
| Yield Strength (Rp0.2) | ≥ 280 MPa |
| Tensile Strength (Rm) | 460 - 590 MPa |
| Elongation (A) | ≥ 21 % |
Frequently Asked Questions (FAQ)
Q1: Is 13CrMo4-5 equivalent to ASTM A335 P11?
A: Yes, 13CrMo4-5 is very similar to ASTM A335 P11 in chemical composition and mechanical properties, making them commonly used equivalent materials between European and American standards.
Q2: Are there special precautions for welding this steel pipe?
A: Yes. Preheating (approx. 200-250°C) and Post-Weld Heat Treatment (PWHT) are recommended to relieve welding stresses and restore material properties in the heat-affected zone. Use matching welding consumables, such as those conforming to EN ISO 16834-A standard.
Q3: How do you ensure product quality?
A: Every EN 10216-2 Seamless Steel Tube we produce undergoes a strict quality control process.
Application Fields
EN 10216-2 Seamless Steel Tube is the preferred choice for critical pressure equipment across numerous industries:
Power Generation: Boiler tubes, superheaters, reheaters, and high-pressure steam lines in fossil-fuel and biomass power plants.
Petrochemical & Refining: Heat exchanger tubes, reactor coils, and process piping in refineries and chemical plants operating under high temperature and pressure.
Oil & Gas: Pipelines and pressure vessels for upstream and downstream applications.
Mechanical & Plant Engineering: For the construction of industrial furnaces, high-pressure autoclaves, and other specialized machinery.
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