Supreme Steels

Nilo 42

Nilo 42 - Low Expansion Alloy

Nilo 42 is a nickel-iron alloy known for its extremely low coefficient of thermal expansion (CTE), making it ideal for applications where dimensional stability over a wide temperature range is critical. This alloy primarily consists of 42% nickel, with iron as the balance, and it offers excellent thermal stability, corrosion resistance, and good mechanical properties. Its low expansion rate makes it particularly useful in the manufacturing of precision instruments, optical components, and electronic devices, where precise dimensional control is essential.

Nilo 42 is commonly used in the aerospace, electronics, and optical industries, as well as in applications that require tight tolerances and high stability when exposed to temperature fluctuations.

Features of Nilo 42:

Specifications:

COMPOSITION OF Nilo 36:

Element Percentage
Nickel (Ni) 42%
Iron (Fe) Balance
Manganese (Mn) 0.30% Max
Silicon (Si) 0.50% Max
Carbon (C) 0.10% Max
Chromium (Cr) 0.50% Max
Copper (Cu) 0.30% Max
Sulphur (S) 0.015% Max
Phosphorus (P) 0.015% Max

Physical Properties:

Property Value
Density 8.30 g/cm³
Melting Point 1410-1450°C (2570-2642°F)
Coefficient of Thermal Expansion (CTE) 1.0 x 10^-5 /°C (0-100°C)
Electrical Resistivity 1.05 x 10^-6 Ω·m
Thermal Conductivity 16 W/m·K
Hardness (BHN) 200-250 BHN
Tensile Strength 550 MPa
Yield Strength 220 MPa
Elongation 25%