1.4429 / AISI 316LN steel is a chromium-based austenitic stainless steel, nickel and molybdenum, nitrogen-enriched to further improve:
• Microstructural stability.
• Corrosion resistance (especially against chloride stress corrosion cracking).
• Mechanical properties (thanks to the nitrogen strengthening effect).
It is an improved grade compared to traditional 316/316L, with low magnetic permeability and excellent performance even in aggressive environments.

Reference Standards:

• EN X2CrNiMoN17-13-3
• ASTM / AISI 316LN
• UNS S31653
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Chemical Composition (%)

Element Content (%)
Carbon (C) ≤0.030
Silicon (Si) ≤1.00
Manganese (Mn) ≤2.00
Phosphorus (P) ≤0.045
Sulphur (S) ≤0.015
Chromium (Cr) 16.5–18.5
Molybdenum (Mo) 2.50–3.00
Nickel (Ni) 11.0–14.0
Nitrogen (N) 0.12–0.22
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Mechanical Properties at 20°C

Property Value
Hardness HB30 ≤250
Yield strength Rp0.2% ≥280 MPa
Tensile strength (Rm) 580–800 MPa
Elongation (A5) ≥40% (bars), ≥30% (sheets)
Modulus of elasticity 200 GPa
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Physical Properties

at 20°C
Property Value
Density 8.0 g/cm³
Specific Heat Capacity 500 J/kg·K
Thermal Conductivity 15 W/m·K
Electrical resistivity 0.75 Ω·mm²/m
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Key Features

• High resistance to chloride stress corrosion cracking.
• Excellent dimensional stability even at high temperatures.
• Low magnetic permeability.
• Excellent weldability; use of 1.4430 or 1.4455 filler is recommended.
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Available Formats

• Sheets and Plates
• Bars
• Tubes and Pipes
• Fittings
• Forged or cast parts
• Components machined to drawing
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Industrial Applications

Ideal for:
• Chemical equipment construction.
• Textile industry.
• Pulp and paper industry.
• Dairy and brewing industry.
• Water treatment plants.