Inconel 602CA ( UNS N06025/ Inconel 602CA /2.4633 )

Short Introduction:

  • UNS N06025/ Alloy 602 CA/Inconel 602CA/2.4633 is a high-carbon nickel-chromium-iron alloy with additions of the micro-alloying elements titanium and zirconium together with aluminum and yttrium.

    Category:

    Description

    Inconel 602CA

    Material grades and equivalents

    UNS N06025/ Alloy 602 CA/Inconel 602CA/2.4633

    UNS N06025/ Alloy 602 CA/Inconel 602CA/2.4633 is a high-carbon nickel-chromium-iron alloy with additions of the micro-alloying elements titanium and zirconium together with aluminum and yttrium. It is normally supplied in the solution-annealed condition with an oxidized or descaled surface.This alloy is characterized by excellent high-temperature creep properties; and exceptional resistance to oxidation at higher temperatures, even under cyclic conditions. It also possesses very good high temperature corrosion resistance and carburizing and oxidizing/chlorinating media as well as under metal dusting conditions.

    High chromium contents are known to be beneficial for resisting oxidation. The aluminum addition allows for the formation of a continuous homogenous self repairing AI2O3 subscale. The addition of yttrium improves the adhesion and spalling resistance of the chromium and aluminum oxide scales. The extremely low scaling rate of alloy 602CA makes it an excellent candidate for applications such as calciners, where minimal contamination from scaling is permissible.

    Extended exposure to methane (CH4), carbon monoxide (CO), and other carbon rich gases can lead to carburization. As heat resistant alloys absorb carbon, their ductility will gradually decrease. Alloys that are high in nickel, such as alloy 602CA possess excellent resistance to carburization attack8. Alloy 602CA forms a tenacious oxide scale, which provides increased protection from carburization. This protective scale impedes the carbon from being absorbed into the base metal.

    Chemical Composition

    C

    Mn

    P

    S

    Cr

    Si

    Al

    Fe

    Ni

    Cu

    Ti

    Y

    Zr

    alloy 602 CA

    Min %

    0,15

    24,00

    1,80

    8,00

    remainder

    0,10

    0,050

    0,010

    Max %

    0,25

    0,15

    0,020

    0,010

    26,00

    0,50

    2,40

    11,00

    remainder

    0,10

    0,20

    0,120

    0,100

    2.4633

    Min %

    0,15

    24,00

    1,80

    8,00

    balance

    0,10

    0,050

    0,010

    Max %

    0,25

    0,50

    0,020

    0,010

    26,00

    0,50

    2,40

    11,00

    balance

    0,10

    0,20

    0,120

    0,100

    (Key to Steel 2010)

    UNS N06025

    Min %

    0,15

    24,00

    1,80

    8,00

    remainder

    0,10

    0,050

    0,010

    Max %

    0,25

    0,15

    0,020

    0,010

    26,00

    0,50

    2,40

    11,00

    remainder

    0,10

    0,20

    0,120

    0,100

    ASTM B167

    Mechanical & Physical Properties

    The properties for other dimensions must be agreed separately.

    Temperature

    Yield strength Rp 0.2

    Tensile strength Rm

    Elongation A

    °C

    °F

    MPa

    ksi

    MPa

    ksi

    %

    20

    68

    270

    39.2

    675

    97.9

    30

    100

    212

    240

    34.8

    650

    94.3

    30

    200

    392

    220

    31.9

    625

    90.6

    30

    300

    572

    200

    29.0

    600

    87.0

    30

    400

    752

    190

    27.6

    580

    84.1

    30

    500

    932

    180

    26.1

    560

    81.2

    30

    600

    1,112

    175

    25.4

    520

    75.4

    30

    700

    1,292

    170

    24.7

    420

    60.9

    30

    Table 4 – Minimum short-term properties for material solution annealed at 1,220 °C (2,228 °F) HY Alloy 602 CA (particle size ≥ 70 µm) at elevated temperatures according to HY material data sheet 540

    Creep resistance

    Temperature

    Creep limit Rp 1.0/10h

    Creep strengt Rm/104 h

    h

    Rp 1.0/10h

    Rm/105 h

    °C

    °F

    MPa

    ksi

    MPa

    ksi

    MPa

    ksi

    MPa

    ksi

    650

    1,202

    185

    26.8

    120

    17.4

    215

    31.2

    140

    20.3

    700

    1,292

    132

    19.1

    85

    12.3

    155

    22.5

    100

    14.5

    750

    1,382

    75

    10.9

    45

    6.5

    90

    13.1

    48

    7.0

    800

    1,472

    32

    4.6

    16.5

    2.4

    42

    6.1

    20

    2.9

    850

    1,562

    19

    2.8

    9.7

    1.4

    26

    3.8

    14

    2.0

    900

    1,652

    13

    1.9

    7.5

    1.1

    18

    2.6

    9.7

    1.4

    950

    1,742

    8.8

    1.3

    5.4

    0.8

    12.8

    1.9

    6.7

    1.0

    1,000

    1,832

    5.8

    0.8

    3.4

    0.5

    9.0

    1.3

    4.5

    0.7

    1,050

    1,922

    3.6

    0.5

    1.9

    0.3

    6.2

    0.9

    3.1

    0.5

    1,100

    2,012

    2.2

    0.3

    1.0

    0.1

    4.4

    0.6

    2.1

    0.3

    1,150

    2,102

    1.0

    0.1

    0.4

    0.1

    3.0

    0.4

    1.4

    0.2

    1,200

    2,192

    2.2

    0.3

    0.8

    0.1

    Table 5 – Typical long-term heat resistance values of VDM® Alloy 602 CA in the solution-annealed state. Basic material of HY Alloy 602 CA; solution- annealed 1,220 °C (2,228 °F), grain size ≥70 µm according to HY material data sheet 540

    Key Properties

    • Density: 7.89 g/cm³

    • Melting Range: 1340 1400°C

    • Specific Heat Capacity: 450 J/kg.°C

    • Electrical Resistivity: 1.23 µΩ.m

    Typical applications are:
    Radiant tubes, Furnace muffles, Rotary and shaft furnaces, Kiln rollers and other furnace installations ,Glass pot for melting radioactive waste ,Methanol and ammonia synthesis, Hydrogen production, Reformers in the chemical and petrochemical industries, Components in automotive exhaust systems, Glow plugs for diesel engines

    Standards / information

    Standards

    Desciption

    ASTM B 166

    Standard Specification for Nickel-Chromium-Cobald-Molybdenium Alloy rods,bars and wires

    ASTM B 167

    Standard Specification for …. NI-Cr-Fe-alloy seamles pipes and tubes

    ASTM B 366

    Standard Specification for Factory-Made Wrought nickel and nickel alloy fittings

    ASTM B 516

    Standard Specification for Welded Nickel-Chromium-Iron Alloy Tubes

    ASTM B 564-06

    Standard Specification for Nickel Alloy Forging

    DIN 17742 (09/2002)

    nickel- forgeable alloy with chrome

    DIN EN 10088-1 (09/2005)

    Stainless steels Part 1: List of stainless steels

     

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