Incoloy | Incoloy Alloy 8028 | Nickel Alloy | Incoloy 28 | Seamless Tubes
Incoloy Alloy | Incoloy Alloy 8028 Manufacturer | Manufacturer of Nickel
Alloy
Kanakratna steelage is a renowned exporter,
manufacturer, stockist, supplier, and stockholder of high-quality Nickel
Alloy Seamless Tubes. These tubes are celebrated for their excellent
corrosion resistance, high-temperature strength, and durability, making them
ideal for applications in aerospace, chemical processing, power generation,
and marine industries. Nickel alloy tubes maintain their mechanical
properties across a wide temperature range, ensuring consistent performance
in demanding environments. Additionally, they offer superb weldability and
ease of fabrication, making them a reliable choice for a variety of critical
applications.
INCOLOY alloy 28 (UNS N08028) is a highly
corrosion-resistant austenitic alloy offering resistance to a variety of
media. The alloy resists attack in reducing media due to its contents of
nickel, copper and molybdenum and is resistant to oxidizing species due to
its high level of chromium. Alloy 28 offers resistance to general, localized
and stress-induced corrosion by chlorides and hydrogen sulfides. Thus, it is
widely used in oilfield applications. Tubes are cold worked to high levels
of strength for downhole service in deep sour gas wells. With its excellent
combination of strength and corrosion resistance, alloy 28 also finds
applications in the process industries. It is especially useful for handling
phosphoric acid. Due to its resistance to chlorides, alloy 28 tubes may be
used in the marine industry for seawater-cooled heat exchangers.
Technical Specifications
| CHEMICAL COMPOSITION
(% by weight) |
|
Element
|
Min
|
Max
|
|
Ni
|
30
|
34
|
|
Cr
|
26
|
28
|
|
Mo
|
3
|
4
|
|
Cu
|
0.6
|
1.4
|
|
Mn
|
-
|
2.50
|
|
C
|
-
|
0.030
|
|
P
|
-
|
0.030
|
|
S
|
-
|
0.030
|
|
Si
|
-
|
1.00
|
|
Fe
|
Balance
|
| MECHANICAL PROPERTIES |
|
Temper
|
Annealed
|
|
Tensile Rm
|
73
|
ksi (min) |
|
Tensile Rm
|
500
|
MPa (min) |
|
R.p. 0.2% Yield
|
31
|
ksi (min) |
|
R.p. 0.2% Yield
|
214
|
MPa (min) |
|
Elongation (2” or 4D gl)
|
40
|
% (min) |
|
Hardness
|
70/90
|
HRB |
| PHYSICAL PROPERTIES (Room Temperature) |
|
Specific Heat
|
0.105
|
Btu/lb•°F
|
450
|
J/kg•°C
|
|
Coefficient of Expansion
|
8.3
|
70 – 200°F, 10-6 in/in•°F
|
15.0
|
21 – 93°C, µm/m•°C
|
|
Coefficient of Expansion
|
8.8
|
70 – 500°F, 10-6 in/in•°F
|
15.9
|
21 – 260°C, µm/m•°C
|
|
Coefficient of Expansion
|
9.3
|
70 – 800°F, 10-6 in/in•°F
|
16.8
|
21 – 427°C, µm/m•°C
|
|
Thermal Conductivity
|
66
|
Btu • in/ft2 •h•°F
|
11.4
|
W/m • °C
|
|
Electrical Resistivity
|
594
|
ohm • circ mil/ft
|
0.99
|
µΩ•m
|
|
Young's ModulusA
|
29.0
|
106 psi
|
200
|
GPa
|
|
Density
|
0.29
|
Ib/in3
|
8.0
|
g/cm3
|
