1.4429 / AISI 316LN steel is an austenitic stainless steel based on chromium , nickel and molybdenum, enriched with nitrogen to further improve:
• Microstructural stability.
• Corrosion resistance (especially against chloride-induced stress corrosion cracking).
• Mechanical properties (thanks to the strengthening effect of nitrogen).
It is an improved quality 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
Sulfur (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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Main features

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

• Sheet metal and plates
• Bars
• Tubes and pipes
• Fittings
• Forged or cast parts
• Components machined to design
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Industrial applications

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