ALLOY 20 / UNS N08020 / 2.4660

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Brand Name

Nicrofer® 3620 Nb, Carpenter® 20, Incoloy® Alloy 20

Trade Name

Alloy 20

Description

Alloy 20 / 2.4660 is a low-carbon, niobium stabilized austenitic nickel-iron-chromium alloy with cooper and molybdenum.

Special Properties

Excellent resistance to sulphuric and phosphoric acids. Good resistance to intergranular corrosion. Good resistance to pitting and crevice corrosion. Very good resistance to chloride-ion induced stress-corrosion cracking.

Application

Phosphor and sulphur acids plants

Suitable welding filler materials

2,4621; 2,4609

Standards

Material No :2.4660 EN Degisnation :NiCr20CuMo UNS :N08020 Alloy :20

Chemical Composition

C
%≤ 0.07 Si
≤ %1.00 Mn
≤ %2.00 P
≤ %0.025 S
≤ %0.015 Cr
%19.0 - 21.0 Mo
%2.00 - 3.00 Ni
%32.0 - 38.0 Cu
%3.00 - 4.00 Co
%≤ 1.50 Fe
%Rest Nb
%8 x C