A nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy's matrix and thereby provide high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
Available Product Forms:
Pipe, tube, sheet, strip, plate, round bar, flat bar, forging stock, hexagon, wire and extruded section
Inconel 600
Inconel 600 is a nickel-chromium alloy with good oxidation resistance at high temperatures and resistance to chloride ion stress-corrosion cracking, corrosion by high-purity water, and caustic corrosion. Used for furnace components, in chemical and food processing, in nuclear engineering, and for sparking electrodes.
Typical Analysis in Percent:
Ni (+Co)
72%
Cr
14–17%
Fe
6-10 %
C
15%
Mn
1%
Si
0.5%
Cu
0.5%
Physical Properties
Density
8.47 g/cm3
Melting Point/Range
1355 - 1413 oC (2470 - 2575 oF)
Specific Heat
444 (J/kg · K), 0.106 ( Btu/lb · oF)
Average Coefficient of Thermal Expansion
13.3 (µm/m · K), 7.4 (µin/in · K)
Thermal Conductivity
14.9 (W/m · K), 103 (Btu · in./ft2 · h · oF)
Electrical Resistivity
1.7 (% IACS), 1030 (n · m)
Magnetic Permeability
1.010
Curie Temperature
-124 oC (-192 oF)
Typical Mechanical Properties At Room Temperature
Ultimate Tensile Strength
655 Mpa, 95ksi
Yield Strength (0.2 % offset)
310 Mpa, 45ksi
Elongation (50 mm = 2")
40%
Elastic Modulus (Tension)
207 Gpa, 30 (106 psi)
Hardness
75 HRB
Inconel 625
Inconel 625 is a nickel-chromium-molybdenum alloy with an addition of niobium that acts with the molybdenum to stiffen the alloy's matrix and thereby provide high strength without a strengthening heat treatment. The alloy resists a wide range of severely corrosive environments and is especially resistant to pitting and crevice corrosion. Used in chemical processing, aerospace and marine engineering, pollution-control equipment, and nuclear reactors.
Typical Analysis in Percent:
Ni
58% min
Cr
20-23%
Fe
5%
Co
1%
Mo
8-10%
Nb (+Ta)
3.15-4.15%
Ti
.4%
Al
.4%
C
.1%
Mn
.5%
Si
.5%
Physical Properties
Density
8.44 g/cm3
Melting Point/Range
1290 - 1350 oC (2350 - 2460 oF)
Specific Heat
410 (J/kg · K ), 0.098 (Btu/lb · oF)
Average Coefficient of Thermal Expansion
12.8 (µm/m · K), 7.1 (µin./in. · oF)
Thermal Conductivity
9.8 (W/m · K), 68 (Btu · in./ft2 · h · oF)
Electrical Resistivity
1290 n · m
Typical Mechanical Properties At Room Temperature
Ultimate Tensile Strength
930 Mpa, 135ksi
Yield Strength (0.2 % offset)
517 Mpa, 75ksi
Elongation (50 mm = 2")
42.5%
Elastic Modulus (Tension)
207 Gpa, 30 (106 psi)
Hardness
190 HRB
Inconel 718
Inconel 718 is a precipitation-hardenable nickel-chromium alloy containing significant amounts of iron, niobium, and molybdenum along with lesser amounts of aluminum and titanium. It combines corrosion resistance and high strength with outstanding weldability, including resistance to post weld cracking. The alloy has excellent creep-rupture strength at temperatures up to 700 oC (1300 oF). Used in gas turbines, rocket motors, spacecraft, nuclear reactors, pumps, and tooling.
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