✅ General Technical Characteristics
Stainless steel 1.4441 (X2CrNiMo18-15-3) is a high-alloy corrosion-resistant steel with enhanced resistance to pitting and crevice corrosion due to its high nickel and molybdenum content. This alloy is designed for use in aggressive environments and exhibits excellent biocompatibility, making it highly demanded in the medical and pharmaceutical industries.
Main Characteristics:
High corrosion resistance in aggressive environments.
Excellent resistance to pitting and crevice corrosion.
Biocompatibility, suitable for medical implants.
Good weldability and machinability.
Heat resistance and stability at high temperatures.
🔬 Chemical Composition 1.4441 / X2CrNiMo18-15-3 (%)Carbon (C): ≤ 0.03
Silicon (Si): ≤ 1.0
Manganese (Mn): ≤ 2.0
Phosphorus (P): ≤ 0.045
Sulfur (S): ≤ 0.015
Chromium (Cr): 17.0 – 19.0
Nickel (Ni): 14.0 – 16.0
Molybdenum (Mo): 2.5 – 3.5
Nitrogen (N): 0.10 – 0.20
💡 The high molybdenum and nickel content enhances corrosion resistance and improves the mechanical properties of the steel.
🏭 Applications
Steel 1.4441 (X2CrNiMo18-15-3) is used in industries requiring high corrosion resistance and biocompatibility.
Main Application Areas:
Medical industry (implants, surgical instruments, orthopedic devices).
Chemical and pharmaceutical industries (tanks, pipelines, reactors).
Production of heat exchangers and equipment for aggressive environments.
Shipbuilding and marine transport.
Aerospace and aviation industries.
📊 Mechanical Properties
Tensile Strength (Rm): 600 – 800 MPa
Yield Strength (Rp0.2): ≥ 300 MPa
Hardness (HB): ≤ 230 HB
Elongation (A5): ≥ 40 %
⭐ Features
High corrosion resistance – suitable for use in aggressive environments, including acids and alkalis.
Biocompatibility – widely used for medical applications.
Heat resistance – retains mechanical properties at high temperatures.
Ease of processing – well-suited for welding and machining.
Durability – high resistance to wear and external influences.
Forms of delivery of steel products EN 1.4441
| EN 1.4441 circle | Diameter: 1 – 100mm |
| EN 1.4441 sheet | Thickness: 0.5 – 100mm |
| EN 1.4441 pipe | – Hot-rolled round pipe with a diameter of 38 to 244.5 mm, a thickness of 3 to 25 mm – Cold Drawn Round Pipe
diameter from 6 to 219.1mm thickness from 0.9 to 14.2mm |
| EN 1.4441 Hex | Diameter: 17-65mm |
| EN 1.4441 strip | Thickness: 5-50mm ; Width: 50-250mm |
| Square EN 1.4441 | Size: 10-80mm |
| EN 1.4441 wire | Diameter : 0.1 -23 |
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