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Elmet Technologies

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Haynes Hastelloy® C-2000® alloy, flat products
Categories: Metal; Nonferrous Metal; Nickel Alloy; Superalloy
Material Notes: Nickel-chromium-molybdenum (Ni-Cr-Mo) C-type alloys have a long history of use in the Chemical Process Industries and are known for their versatility. Not only do they resist all acids (especially hydrochloric, sulfuric, and hydrofluoric) over large temperature ranges, but they also resist the insidious types of attack induced by chlorides and other halide solutions, specifically pitting, crevice attack, and stress corrosion cracking. HASTELLOY® C-2000® alloy has greater versatility than traditional Ni-Cr-Mo alloys. This was accomplished by use of a high chromium content, a high molybdenum content, and a small but effective addition of copper. The copper provides enhanced temperature capability in sulfuric acid, hydrofluoric acid, and dilute hydrochloric acid.

C-2000 alloy is available in plate, sheet, strip, billet, bar, wire, covered electrodes, pipe, and tubing.

Applications:

  • Chemical process industry reactors, heat exchangers, columns, and piping.
  • Pharmaceutical industry reactors and dryers.
  • Flue gas desulfurization systems.

C-2000 alloy is covered by ASME, ASTM, AWS, DIN, and TÜV specifications.

Welding: The weldability of C-2000 alloy is similar to that of C-276 alloy. To weld the C-type alloys, three processes are commonly used. For sheet welds and plate root passes, gas tungsten arc (GTAW) welding is favored. For plate welds, the gas metal arc (GMAW) process is preferred. For field welding, the shielded metal arc process, using coated electrodes, is favored. Submerged arc welding is not recommended as this process is characterized by high heat input to the base metal and slow cooling of the weld. To minimize the precipitation of second phases in regions affected by the heat of welding, a maximum interpass temperature of 93°C (200°F) is recommended for the C-type alloys. Welding of cold-worked materials is strongly discouraged, since they sensitize more quickly and induce residual stresses. A full solution anneal, followed by water quenching, is recommended for cold-worked structures prior to welding.

Base Metal Preparation: The joint surface and adjacent area should be thoroughly cleaned before welding. All grease, oil, crayon marks, sulfur compounds, and other foreign matter should be removed.

Filler Metal Selections: For gas tungsten arc and gas metal arc welding, C-2000 filler wire (ERNiCrMo-17) is suggested. For shielded metal arc welding,C-2000 covered electrodes (ENiCrMo-17) are suggested.

Heat Treatment: The standard solution annealing treatment consists of heating to 1135°C (2075°F) followed by rapid air-cooling or water quenching. Parts which have been hot formed should be solution annealed prior to final fabrication or installation.

Forming: C-2000 alloy has excellent forming characteristics, and cold forming is the preferred method of shaping. The alloy can be easily cold worked due to its good ductility. The alloy is generally stiffer than the austenitic stainless steels so more energy is required during cold forming.

Data provided by the manufacturer, Haynes International, Inc.
Key Words: UNS N06200
Vendors: Visit metalmen for your metals needs. Products include special chemistry, tight tolerances, custom tempers, odd dimensions/forms, and small quantities. Phone 1-800-767-9494.

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Physical PropertiesOriginal ValueComments
Density 8.50 g/ccat RT
 
Mechanical PropertiesOriginal ValueComments
Tensile Strength, Ultimate 752 MPa
@Thickness 25.4 mm
 752 MPa
@Thickness 1.60 mm
 758 MPa
@Thickness 12.7 mm
 765 MPa
@Thickness 3.17 mm
 779 MPa
@Thickness 6.35 mm
Tensile Strength, Yield 345 MPa
@Thickness 12.7 mm,
Temperature 20.0 °C		0.2% offset
 358 MPa
@Thickness 1.60 mm,
Temperature 20.0 °C		0.2% offset
 372 MPa
@Thickness 25.4 mm,
Temperature 20.0 °C		0.2% offset
 379 MPa
@Thickness 6.35 mm,
Temperature 20.0 °C		0.2% offset
 393 MPa
@Thickness 3.17 mm,
Temperature 20.0 °C		0.2% offset
Elongation at Break 62 %
@Thickness 6.35 mm		in 50.8 mm
 63 %
@Thickness 25.4 mm		in 50.8 mm
 63 %
@Thickness 3.17 mm		in 50.8 mm
 64 %
@Thickness 1.60 mm		in 50.8 mm
 68 %
@Thickness 12.7 mm		in 50.8 mm
Modulus of Elasticity 162 GPa
@Temperature 649 °C
 171 GPa
@Temperature 538 °C
 177 GPa
@Temperature 427 °C
 190 GPa
@Temperature 316 °C
 207 GPa
@Temperature 25.0 °C
 
Electrical PropertiesOriginal ValueComments
Electrical Resistivity 0.000128 ohm-cmRT
 0.000129 ohm-cm
@Temperature 100 °C
 0.000131 ohm-cm
@Temperature 300 °C
 0.000132 ohm-cm
@Temperature 900 °C
 0.000134 ohm-cm
@Temperature 500 °C
 0.000134 ohm-cm
@Temperature 700 °C
 
Thermal PropertiesOriginal ValueComments
CTE, linear 12.4 µm/m-°C
@Temperature 25.0 - 100 °C
 12.6 µm/m-°C
@Temperature 25.0 - 300 °C
 13.2 µm/m-°C
@Temperature 25.0 - 500 °C
 14.0 µm/m-°C
@Temperature 25.0 - 700 °C
 15.0 µm/m-°C
@Temperature 25.0 - 900 °C
Specific Heat Capacity 0.428 J/g-°C
@Temperature 25.0 °C
 0.434 J/g-°C
@Temperature 100 °C
 0.443 J/g-°C
@Temperature 200 °C
 0.455 J/g-°C
@Temperature 300 °C
 0.468 J/g-°C
@Temperature 400 °C
 0.486 J/g-°C
@Temperature 500 °C
 0.536 J/g-°C
@Temperature 600 °C
Thermal Conductivity 9.10 W/m-KRT
 10.8 W/m-K
@Temperature 100 °C
 14.1 W/m-K
@Temperature 300 °C
 18.0 W/m-K
@Temperature 500 °C
 24.8 W/m-K
@Temperature 700 °C
 25.9 W/m-K
@Temperature 900 °C
Melting Point 1328 - 1358 °C
Solidus 1328 °C
Liquidus 1358 °C
 
Component Elements PropertiesOriginal ValueComments
Aluminum, Al <= 0.50 %
Carbon, C <= 0.010 %
Chromium, Cr 23 %
Copper, Cu 1.6 %
Iron, Fe <= 3.0 %
Manganese, Mn <= 0.50 %
Molybdenum, Mo 16 %
Nickel, Ni 59 %as balance
Silicon, Si <= 0.080 %
 
Descriptive Properties
Thermal Diffusivity0.025 cm2/sat 25°C
 0.029 cm2/sat 100°C
 0.033 cm2/sat 200°C
 0.036 cm2/sat 300°C
 0.04 cm2/sat 400°C
 0.043 cm2/sat 500°C
 0.047 cm2/sat 600°C

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to go back to viewing the property data in MatWeb's normal format.

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NHAC2A / 16781




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