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C-2000 Corrosion Proof Alloys Copper Bearing Ni-Cr-Mo Material Anti Sulfuric Acid

Categories Corrosion Resistant Alloys
Brand Name: CMMC
Model Number: As per specification and drawing
Certification: API, PED, ISO 9001 etc.
Place of Origin: CMMC in CHINA
MOQ: Negotiable
Price: Negotiable
Payment Terms: D/P, L/C, T/T
Supply Ability: 200 metric tons per month
Delivery Time: 60-90 days
Packaging Details: Water prevent, seaworthy transport, mill's export standard package
Material: UNS N06200, a copper-bearing Ni-Cr-Mo material
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    C-2000 Corrosion Proof Alloys Copper Bearing Ni-Cr-Mo Material Anti Sulfuric Acid

    Corrosion resistant alloy C-2000 (N06200) pipe, fitting, strip, bar, forging, fastener for chemical process


    1 PRODUCT

    Corrosion resistant alloy C-2000 (UNS N06200) for chemical process.

    Product forms available as pipe, tube, fitting, sheet, strip, plate, round and hexagonal bar, forging, forging stock, wire, spring, fastener etc.


    2 EQUIVALENT DESIGNATION

    UNS N06200, W.Nr.2.4675, NiCr23Mo16Cu (DIN), AWS 055, Hastelloy® C-2000® Alloy


    3 APPLICATION

    Applications include reactor, heat exchanger, tower vessel, pipe line, valve, pump, springs, fasteners, and mixer shaft etc for chemical processing, reactors and dryers for pharmaceutical industry, and components of flue gas desulfurization system etc.


    4 OVERVIEW

    Alloy C-2000 is a copper-bearing Ni-Cr-Mo material with exceptional resistance to sulfuric acid. It is unique among the versatile nickel-chromi- um-molybdenum materials in having a deliberate copper addition. This provides greatly enhanced resistance to sulfuric acid. It also has a high chromium content, to maximize its resistance to oxidizing chemicals and process streams contaminated with ferric ions and dissolved oxygen.

    Like other nickel alloys, Alloy C-2000 is ductile, easy to form and weld, and possesses exceptional resistance to stress corrosion cracking in chloride-bearing solutions (a form of degradation to which the austenitic stainless steels are prone). It is able to withstand a wide range of oxidizing and non-oxidizing chemicals, and exhibits outstanding resistance to pitting and crevice attack in the presence of chlorides and other halides.


    5 CHEMICAL COMPOSITION

    StandardFeNiCrCoMoMnSiPSCAlCu

    B564

    B574

    ≤3.0Balance22.0-24.0≤2.015.0-17.0≤0.50≤0.08≤0.025≤0.010≤0.01≤0.501.3-1.9
    VdTÜV 539≤3.0Balance22.0-24.0≤2.015.0-17.0≤0.50≤0.08≤0.025≤0.010≤0.01≤0.501.3-1.9

    6 PHYSICAL PROPERTIES

    Density at room temperature: 0.307 lb/in3 (8.50 g/cm3)

    Melting range: 2422-2476°F (1328-1358°C)


    7 MECHANICAL PROPERTIES

    Typical mechanical properties (Bar and forging in solution annealed condition)

    PropertiesTensile strengthYield strengthElongationImpact strength
    Rm MPaRp0.2 MPaRp1.0 MPaA%Av J
    ASTM B564 forging≥690≥310≥45
    ASTM B574 bar≥690≥310≥45
    Forging and bar dia.≤90mm690-950≥310≥330≥45≥120

    8 CORROSION RESISTANCE

    Resistance to pitting and crevice corrosion

    Alloy C-2000 exhibits high resistance to chloride-induced pitting and crevice attack, forms of corrosion to which the austenitic stainless steels are particularly prone. To assess the resistance of alloys to pitting and crevice attack, it is customary to measure their Critical Pitting Temperatures and Critical Crevice Temperatures in acidified 6 wt.% ferric chloride, in accordance with the procedures defined in ASTM Standard G 48. These values represent the lowest temperatures at which pitting and crevice attack are encountered in this solution, within 72 hours. For comparison, the values for 316L, 254SMO, 625, C-276, and C-2000® alloys are as follows. Note that Alloy C-2000 exhibits higher resistance to crevice attack than even C-276 alloy.

    AlloyCritical Pitting TemperatureCritical Crevice Temperature
    in Acidified 6% FeCl3in Acidified 6% FeCl3
    °F°C°F°C
    316L5915320
    254SMO140608630
    62521210010440
    C-276>302>15013155
    C-200029314517680

    Other chloride-bearing environments, notably Green Death (11.5% H2SO4 + 1.2% HCl + 1% FeCl3 + 1% CuCl2) and Yellow Death (4% NaCl + 0.1% Fe2(SO4)3 + 0.021M HCl), have been used to compare the resistance of various alloys to pitting and crevice attack (using tests of 24 hours duration). In Green Death, the lowest temperature at which pitting has been observed in C-2000 alloy is 100°C. In Yellow Death, C-2000 alloy has not exhibited pitting, even at the maximum test temperature (150°C).The Critical Crevice Temperature of C-2000 alloy in Yellow Death is 95°C.


    Resistance to stress corrosion cracking

    One of the chief attributes of the nickel alloys is their resistance to chloride-induced stress corrosion cracking. A common solution for assessing the resistance of materials to this extremely destructive form of attack is boiling 45% magnesium chloride (ASTM Standard G 36), typically with stressed U-bend samples. As is evident from the following results, the three nickel alloys, C-276, C-2000 and 625, are much more resistant to this form of attack than the comparative, austenitic stainless steels. The tests were stopped after 1008 hours (six weeks).

    AlloyTime to Cracking
    316L2 h
    254SMO24 h
    625No cracking in 1008 h
    C-276No cracking in 1008 h
    C-2000®No cracking in 1008 h

    Resistance to seawater crevice corrosion

    Seawater is probably the most common aqueous salt solution. Not only is it encountered in marine transportation and offshore oil rigs, but it is also used as a coolant in coastal facilities. Listed are data generated as part of a U.S. Navy study at the LaQue Laboratories in Wrightsville Beach, North Carolina (and published by D.M. Aylor et al, Paper No. 329, CORROSION 99, NACE International, 1999). Crevice tests were performed in both still (quiescent) and flowing seawater, at 29°C, plus or minus 3°C. Two samples (A & B) of each alloy were tested in still water for 180 days, and likewise in flowing water. Each sample contained two possible crevice sites. The results indicate that Alloy C-2000 is very resistant to crevice corrosion in seawater.

    AlloyQuiescentFlowing
    No. of Sites AttackedMaximum Depth of Attack, mmNo. of Sites AttackedMaximum Depth of Attack, mm
    316LA:2, B:2A:1.33, B:2.27A:2, B:2A:0.48, B:0.15
    254SMOA:2, B:2A:0.76, B:1.73A:2, B:2A:0.01, B:<0.01
    625A:1, B:2A:0.18, B:0.04A:2, B:2A:<0.01, B:<0.01
    C-276A:1, B:1A:0.10, B:0.13A:0, B:0A:0, B:0
    C-2000A:0, B:0A:0, B:0A:0, B:0A:0, B:0

    9 WORKING INSTRUCTION

    Hot working

    Alloy C-2000 can be hot forged, hot rolled, hot upset, hot extruded, and hot formed. However, it is more sensitive to strain and strain rates than the austenitic stainless steels, and the hot working temperature range is quite narrow. For example, the recommended start temperature for hot forging is 1232°C (2250°F) and the recommended finish temperature is 954°C (1750°F). Moderate reductions and frequent re-heating provide the best results.

    Cold working

    The alloy is stiffer than most austenitic stainless steels, and more energy is required during cold forming. Also Alloy C-2000 work hardens more readily than most austenitic stainless steels, and may require several stages of cold work, with intermediate anneals.

    While cold work does not usually affect the resistance of Alloy C-2000 to general corrosion, and to chloride-induced pitting and crevice attack, it can affect resistance to stress corrosion cracking. For optimum corrosion performance, therefore, the re-annealing of cold worked parts (following an outer fiber elongation of 7% or more) is important.

    Annealing

    Wrought products of Alloy C-2000 are supplied in the Mill Annealed (MA) condition, unless otherwise specified. This solution annealing procedure has been designed to optimize the alloy’s corrosion resistance and ductility. Following all hot forming operations, the material should be re-annealed, to restore optimum properties. The alloy should also be re-annealed after any cold forming operations that result in an outer fiber elongation of 7% or more. The annealing temperature for Alloy C-2000 is 1149°C (2100°F), and water quenching is advised (rapid air cooling is feasible with structures thinner than 10 mm (0.375 in). A hold time at the annealing temperature of 10 to 30 minutes is recommended, depending on the thickness of the structure (thicker structures need the full 30 minutes).


    10 STANDARD SPECIFICATION

    Rod, bar, wire and billet

    ASME SB574 / ASTM B574

    ASTM B472

    NACE MR0175 (ISO 15156-3)

    Forgings

    ASTM B462

    ASME SB564 / ASTM B564

    Plate, sheet and strip

    ASME SB575 / ASTMB575

    Pipe and tube

    ASME SB619 / ASTM B619

    ASME SB622 / ASTM B622

    ASME SB626 / ASTM B626

    ASTM B775

    ASTM B751

    Coated Electrodes

    SF A 5.11/ A 5.11 (ENiCrMo-17)

    DIN 2.4699 (EL-NiCr23Mo16Cu)

    Bare welding rods & wire

    SF A5.14/ A5.14 (ERNiCrMo-17)

    DIN 2.4698 (SG-NiCr23Mo16Cu)

    Fittings

    ASME SB366 / ASTM B366

    ASME SB462 / ASTM B462

    TÜV

    Werkstoffblatt 539

    Kennblatt 9677

    Kennblatt 9678

    Kennblatt 9679

    Composition

    DIN 17744


    11 COMPETITIVE ADVANTAGE

    (1) More than 50 years experience of research and develop in high temperature alloy, corrosion resistance alloy, precision alloy, refractory alloy, rare metal and precious metal material and products.
    (2) 6 state key laboratories and calibration center.
    (3) Patented technologies.
    (4) Ultra-purity smelting process VIM + IG-ESR + VAR.

    (5) High performance material.


    12 BUSINESS TERM

    Minimum Order QuantityNegotiable
    PriceNegotiable
    Packaging DetailsWater prevent, seaworthy transport, mill’s export standard package
    MarkAs per order
    Delivery Time60-90 days
    Payment TermsT/T, L/C at sight, D/P
    Supply Ability200 metric tons / Month

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