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Alloy 602 CA

  • Material

    Alloy 602 CA, UNS N06025, W.Nr. 2.4633

  • Overview

    Alloy 602 CA is a high-temperature material with excellent resistance to creep and oxidation up to 1200°C (2192°F). It is usually delivered in the solution-annealed state with an oxidized or descaled surface.


  • Characteristics

    The materialis characterized by

    (1) Excellent high-temperature creep behavior values

    (2) Outstanding resistance to oxidation at high temperatures, even under cyclical conditions

    (3) Very good corrosion resistance in carburizing and oxidizing / chlorinating media

    (4) Approval for pressure containers with operating temperatures from -10 to 1150 °C (14 to 2102 °F) according to VdTÜV material data sheet 540 and up to 1650 °F (899 °C) according to ASME Code Section I as well as up to 1800 °F (982 °C) for applications according to section VIII Div. I..

  • Application

    Alloy 602 CA has a wide range of application in the high-temperature field of thermo technical and chemical processes, in power plants and in the automotive industry. 

  • Chemical Composition (wt%)

    Material

    Fe

    Ni

    Zr

    Cr

    Al

    Ti

    Cu

    Alloy 602 CA

    8.0-11.0

    Bal.

    0.01-0.10

    24.0-26.0

    1.80-2.40

    0.10-0.20

    ≤0.10

    Material

    C

    Mn

    Si

    P

    S

    Y


    Alloy 602 CA

    0.15-0.25

    ≤0.50

    ≤0.50

    ≤0.020

    ≤0.010

    0.05-0.12


  • Mechanical Property

    (at room termperature in solution annealed condition)

    Material

    Tensile strength

    MPa

    Yield strength at

    0.2 offset MPa

    Elongation in 2” 

    % min.

    Reduction of area

    % min.

    Alloy 602 CA

    ≥680

    ≥270

    ≥30


  • Corrosion Resistance

    Alloy 602 CA is especially characterized by very good oxidation resistance, which is better across the entire application range up to 1200°C (2192°F) than with Alloy 601. Even under extreme conditions, such as cyclic heating and cooling, Alloy 602 CA retains this property, which is caused by a tight and adhering alumina layer, which is very resistant to chipping.

     

    High temperature oxidation tests show that, compared to other high temperature materials, this material has the lowest mass loss under cyclic stress. Caused by its chromium and aluminum content, Alloy 602 CA is also highly resistant in oxidizing sulfur-containing atmospheres at elevated temperatures.

  • Available Process

    (1) Hot formed, solution annealed, descaled

    (2) Cold worked and bright annealed

    (3) Cold worked, bright annealed, polished (MP, EP etc.)

  • Common Tests

    Chemical composition

    Tension

    Hardness

    Flaring

    Flange

    Flattening

    Micro structure

    Hydrostatic

    NDT

    Intergranular Corrosion

    Surface condition

    Shape and dimension

    Positive Material Identification

  • Product Forms

    Form

    Size range

    Capillary tube

    OD 0.08 ~ 6.0 mm

    WT 0.015 ~ 1.5 mm

    Thin wall & Ultra thin wall seamless tube

    OD6.0 ~80.0 mm

    WT 0.05 ~4.5 mm

    Micro ID and heavy thick wall seamless tube

    OD3.0 ~50.0 mm

    ID 0.30 ~5.0 mm

    Precision conic seamless tube

    Bigger end: OD3.0 - 426.0mm

    Smaller end: OD2.5 - 346.0mm

    WT: 0.15 - 40.0mm

    HP /UHP BA+ tube

    EP tube

    OD 1.0 ~ 76 mm

    WT 0.10 ~ 10.0 mm

    Small caliber precision seamless tube

    OD6.0 ~89 mm

    WT 0.50 ~9.0 mm

    Profiled seamless tube

    Build to drawing

    Build to specification

    Bourdon tube

    Y40, Y50, Y60, Y70, Y100, Y150

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