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VDM® Alloy 400 Nicorros - 13 Pages

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Catalogue excerpts

Material Data Sheet No. 4110 November 2016

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November 2016 VDM® Alloy 400 2 VDM® Alloy 400 is a single-phase, solid solution, nickel-copper alloy with excellent corrosion resistance in a wide range of corrosive media. VDM® Alloy 400 is characterized by: • resistance against chloride-induced stress corrosion • excellent strength even at low application temperatures • easy processing compared to other high-alloy materials • approved for pressure vessels from -10 to 425 °C (14 to 797 °F) pursuant to VdTUV Material Sheet 263 and up to 480 °C (896 °F) in accordance with ASME Boiler and Pressure Vessel Code. Designations and standards Standard    Material...

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November 2016 VDM® Alloy 400 3 Chemical composition Table 2 - Chemical composition (%) Physical properties Density    Melting range    Curie temperature Temperature    Specific heat    Thermal con ductivity Electrical Modulus of elasticity Table 3 - Typical physical properties of VDM® Alloy 400 at below, room and increased temperatures

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November 2016 VDM® Alloy 400 4 Yield strength    Tensile strength Table 4 - Mechanical properties at room temperature and increased temperature according to VdTUV Material Sheet 263 Product form    Heat treatment    Standard    Yield strength    Tensile strength    Elongation Sheet, plate / rod, bar Sheet, plate / rod, bar Sheet, plate / rod, bar annealed ASTM, ASME Sheet, plate / rod, bar annealed VdTUV values apply to the following dimensions: max. thickness sheet = 50 mm (1.97 in), max. diameter rod and bar = 200 mm (7.87 in) Table 5 - Mechanical properties at room temperature, minimum values

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ISO V-notch impact toughness 2 Average value, room temperature, annealed: 150 J/cm 2 Average value, room temperature, stress-relieved: > 100 J/cm Source: VdTÜV Material Sheet 263 Rockwell hardness HRB Stress-relieved, room temperature, DIN: ≥ 170 Annealed, room temperature, DIN, VdTÜV: ≤ 15

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VDM Alloy 400 has excellent resistance to neutral and alkaline salts and has long been the standard material for salt ® production systems. VDM Alloy 400 is one of the few materials which can be used in contact with fluorine, hydrofluoric acid and hydrogen fluoride or their compounds. The material has a very high resistance to alkaline media. Its behavior in ® seawater is also excellent compared to copper-based alloys with an increased resistance to cavitation. VDM Alloy 400 can be used in contact with highly diluted mineral acids, such as sulfuric and hydrochloric acid, provided that they are...

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November 2016 VDM® Alloy 400 7 VDM® Alloy 400 is easy to process by the conventional method in the industry. Heating It is important that the workpieces are clean and free of any contaminants before and during heat treatment. Sulfur, phosphorus, lead and other low-melting-point metals can result in damage during the heat treatment of VDM® Alloy 400. This type of contamination is also contained in marking and temperature display paints or pens, and also in lubricating grease, oils, fuels and similar materials. Fuels must have as low a sulfur content as possible. Natural gas should contain less...

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The material must be placed in a furnace which has been heated up to the maximum annealing temperature before any heat treatment. For the product forming belt, the heat treatment can be performed in a continuous furnace at a speed and temperature that is adapted to the band thickness. The cleanliness requirements listed under "Heating" have to be observed. Descaling and pickling ® Oxides on VDM Alloy 400 and discolorations in the area of weld edges have to be removed before use. Before the pickling in hot sulfuric acid, blasting of the surfaces is helpful to shorten the pickling times. Pickling...

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November 2016 VDM® Alloy 400 9 Opening angle Compared to C-steels, nickel alloys and specialty stainless steels have a lower heat conductivity and greater heat expansion. These properties have to be taken into account by a larger root openings or root gaps (1 to 3 mm, 0.04 to 0.12 in). Due to the viscosity of the welding material (compared to standard austenites) and the tendency to shrink, opening angles of 60 to 70° - as shown in Figure 3 - have to be provided for butt welds. Straight butt weld Single-V weld Sheet/plate thickness Single-U weld Plate thickness Double-V weld Plate thickness Figure...

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Welding consumable The following welding consumable is recommended: ® VDM FM 60 (W.-Nr. 2.4377) (WIG electrodes, Welding wire, Wire electrode) ® VDM WS 60 (W.-No. 2.4377) (strip for submerged arc welding or electrode slag welding) SG-NiCu30MnTi AWS A5.14: ERNiCu-7 ISO 18274: S Ni 4060, NiCu30Mn3Ti The use of bar electrodes in sleeves is possible. Welding parameters and influences It has to be ensured that work is performed using targeted heat application and low heat input. The interpass temperature should not exceed 150 °C (302 °F). The stringer bead technique is recommended. In this context,...

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November 2016 VDM® Alloy 400 11 Intermediate    Welding    Shielding gas and final passes    speed (mm)    Diameter Speed I in (A) U in (V) I in (A) U in (V) (cm/min) Type    Rate 1) It must be ensured that there is sufficient root protection, for example using Ar 4.6, for all inert gas welding processes. 2) The root pass should be welded manually (see manual TIG). 3) Recommended plasma gas Ar 4.6 / rate 3.0 to 3.5 l/min 4) For MAG welding the use of multicomponent inert gases is recommended. Section energy kJ/cm: manual TIG, autom. TIG max. 8; TIG hot wire max. 6; manual GMAW (MIG/MAG), autom....

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November 2016    VDM® Alloy 400    12 Wire Delivery condition: drawn bright, % hard to hard, bright annealed in rings, containers, on spools and spiders Drawn    Hot rolled Other shapes and dimensions (such as discs, rings, seamless or longitudinally welded pipes and forgings) can be requested.

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Publisher VDM Metals International GmbH Plettenberger Strasse 2 58791 Werdohl Germany Disclaimer All information contained in this data sheet is based on the results of research and development work carried out by VDM Metals International GmbH and the data contained in the specifications and standards listed available at the time of printing. The information does not represent a guarantee of specific properties. VDM Metals reserves the right to change information without notice. All information contained in this data sheet is compiled to the best of our knowledge and is provided without liability....

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