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NES 833 Part 2
We specialize in manufacturing & supply of high precision NAB (Nickel Aluminum Bronze) fasteners in any sizes as per your specifications confirming to Naval Engineering Standards (NES).
The Nickel aluminum bronze material shall be as specified by you, like NES 833 Part 2, BS 2874 Gr, CA104 etc.
Some of the properties of the Alloy NES 833 Part 2 are detail below
Nickel Aluminum Bronze NES 833 Part 2
Nickel Aluminum Bronze NES 833 Part 2 is for good ductility and impact strength. Its distinctive quality is it has a excellent corrosion resistance.
Chemical Composition NES 833 Part 2
% by weight
Not Less than
Not More than
Aluminum (see Note 1)
Iron (see Note 2)
Nickel (see Note 2)
NOTE 1 - Aluminum to at least commercially pure 99.7% with maximum magnesium level of 0.05 % is to be used
NOTE 2 - Nickel content is to be greater than iron content.
Typical mechanical properties of the alloy are
NES 833 Part 2
Tensile Strength (MPa)
Proof Stress 0.2% (MPa)
Elongation A5 (%)
7.5 gm / cm3
0.172 x 10-6 oms
42 W/m.k at 20oC
NES 833 Part 2 has high corrosion resistance; particularly in marine environments. It also has excellent resistance to cavitations erosion. It largely retains its strength and hardness upto 400o C. It is also resistant to high temperature scaling up to 1000oC.
The dimensional Accuracy & Tolerance of our fastener products are as per the relevant international standards.
Our fasteners are widely used by marine project industries like Ship Building, Pressure Vessels and Heat Exchanger manufacturers, Marine application valve manufacturers and so on.
Our fasteners are manufactured strictly as per the specified fastener material standard as well as fastener dimensional standard.
Our fastener products are put through suitable stress relief heat treatment process to get rid of all the undue stresses inculcated during manufacturing process.
The finished fasteners are thoroughly inspected for the surface defects like Cracks , Seams , Bursts , Folds , Laps , Voids etc .
We are one of the leading manufacturers of high precision NAB (Nickel Aluminum Bronze) fasteners in India.