EN 10216-5 1.4462 Duplex Stainless Steel Seamless Pipe
Shape：round
Technique：Cold Rolled
Surface Treatment：Sanded /Mirror/Hairline Brushed
Thickness：0.3-30mm
out Diameter：8-219mm
Length：5.8/6m or Custom
Stock：in Stock
Sample：Available
Transport Package：Standard Sea-Worthy Packing
EN 10216-5 1.4462 Stainless Steel Tube Supplier
EN 10216-5 UNS32205 seamless steel pipes comply with European standards and have become the preferred material in Europe's energy, chemical, and marine engineering sectors. Their manufacturing and testing strictly adhere to the EN/ISO system, ensuring reliability under high pressure, corrosion, and extreme temperatures. This product is a benchmark for EU industrial sustainability goals.
GNEE supplies EN 10216-5-compliant UNS32205 (S32205/2205) duplex stainless steel seamless pipes. This material contains 22% chromium, 5% nickel, 3% molybdenum, and 0.14–0.20% nitrogen, with its microstructure stabilized by solution annealing at 1050°C–1100°C (water quenched). It delivers exceptional mechanical properties and corrosion resistance, exhibiting outstanding resistance to pitting and stress corrosion cracking in chloride-containing environments (such as seawater and chemical media). This efficient corrosion-resistant solution can replace carbon steel or austenitic stainless steel.
1.4462 stainless steel pipes (another designation for UNS32205) feature a bright annealed surface, high dimensional precision (e.g., outer diameter tolerance ±0.10mm, wall thickness tolerance ±10%), and support for customized processing. They are widely used in harsh conditions such as high-temperature, high-pressure heat exchange systems in the oil, chemical, and marine engineering sectors.
Application
1. Marine and oil and gas engineering (European core applications)
2. Chemical and pharmaceutical (REACH/ROHS compliance)
3. Energy and low-carbon transformation
4. Rail transit and ships
Specification
Chemical Composition UNS S32205 Duplex Stainless Steel Seamless Tubes
| UNS Number Duplex Grades |
Typeb | C | Mn | P | S | Si | Cr | Ni | Mo | N | Cu | Other |
| S32205 | 2205 | 0.030 | 2.00 | 0.030 | 0.020 | 1.00 | 19.5-21.5 | 4.5-6.5 | 3.0-3.5 | 0.14-0.20 | ... | |
| S32750 | 2507 | 0.030 | 1.20 | 0.035 | 0.020 | 0.80 | 24.0-26.0 | 6.0-8.0 | 3.0-5.0 | 0.24-0.32 | 0.50 |
Mechanical Composition UNS S32205 Duplex Stainless Steel Tubes
| Grade | Tensile Strength (MPa) min |
Yield Strength 0.2% Proof (MPa) min |
Elongation (% in 50mm) min |
Hardness | |
| Rockwell C (HR C) | Brinell (HB) | ||||
| UNS S31803 / 2205 | 621 | 448 | 25 | 31 max | 293 max |
Physical Properties OF UNS S32205 Stainless Steel Seamless Tubes
| Grade | Density (kg/m3) |
Elastic Modulus(GPa) |
Mean Co-eff of Thermal Expansion (μm/m/°C) |
Thermal Conductivity (W/m.K) |
Specific Heat 0-100°C( J/kg.K) |
Electrical Resistivity (nΩ.m) |
|||
| 0-100°C | 0-315°C | 0-538°C | at 100°C | at 500°C | |||||
| UNS S31803 / 2205 | 782 | 190 | 13.7 | 14.2 | - | 19 | - | 418 | 850 |
EN 10216-5 Seamless Tubes shall be designed by outside diameter and wall thickness, The diameter and the wall thickness of the tubes shall be within the relevant tolerance limits given in EN ISO 1127, D1, D2, D4, and D4 for outside diameters and T1, T2, T3 and T4 for wall thicknesses, tight tolerances for EN 10216-5 seamless tubes are available upon request. TC1 and TC2 test requirements can met at our mill.
inspection
Several mechanical tests shall be conducted, namely:
Hydrostatic or nondestructive electric test.
Tension test;
Flaring test (for seamless tubes);
Flange test (for welded tubes);
Hardness test;
Reverse flattening test;
Intergranular corrosion test;
Stainless Steel 1.4462 Tube Factory
Packaging and Marking
Packaging shall be in bundles or laminated wooden crates, wrapped in plastic, and appropriate protective measures shall be taken to ensure seaworthiness for transport or as required.
Marking shall comply with the provisions of A1016/A1016M specifications and shall include whether the pipes are hot-worked or cold-worked, including but not limited to: standard, grade, size, furnace number, and batch number.
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