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NiCr21Mo16W | 2.4606 Material Datasheet

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Material Description

Material Number Material Name Material Number (single) Standard Scope Standard Status Country Successor VDA 231-106 classification Application temperature [°C]
2.4606 (DIN 17744 : 2002-09) NiCr21Mo16W 2.4606 DIN 17744 : 2002-09 DIN 17744 : 2002-09 replaced by DIN 17744 : 2020-12 Replaced Germany NiCr21Mo16W 3.4 -196 - 450 1)
1) Remark: The material 2.4606 with the material number 2.4606, which is also contained in the VdTÜV-Werkstoffblatt 515 : 2001-09, is applied in the form of strips, sheets, tubes, bars, wires and forgings for corrosion-resistant construction components. The material is a monophase austenitic nickel-chromium-molybdenum-tungsten alloy that is marked by an oustanding resistance to corrosion in many mediums. The high content of nickel and molybdenum causes good corrosion behaviour in reducing mediums, whereas the high chromium content results in resistance to corrosion in oxidizing mediums. Molybdenum and tungsten support the resistance to local corrosion, especially to pitting corrosion. The low carbon content minimizes the grain boundary precipitation, so that the resistance to corrosion remains in the heat affected zones of welded joints. The material 2.4606 is applied in the chemical industry, in the paper and cellulose industry, for the treatment of industrial and urban waste products. In the chemical industry, fields of application of the material include heat exchangers, reaction boilers, evaporators and tubes for the matter transport. Furthermore, the alloy is applied for numerous construction components for devices of the air pollution monitoring. The material is authorized for pressure vessels (according to TRB 100) from -196 to +450 °C. (Werkstoffblatt: material specification)

Chemical Composition

Al [%] C [%] Co [%] Cr [%] Fe [%] Mn [%] Mo [%] P [%] S [%] Si [%] Ti [%] V [%] W [%] Remainder
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Material Compliance

REACh RoHS
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Mechanical Properties

Semi-finished Product Condition Strength Abbrevation Nominal Size [mm] Temperature [°C] Specimen Direction Tensile Strength [MPa] Yield Strength (0.2% offset) [MPa] Yield Strength (1.0% offset) [MPa] Elongation A [%] Hardness HB | HBW
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Physical Properties

Temperature [°C] Melting Temperature [°C] Density [g/cm³] Young's Modulus [GPa] Mean Coefficient of Thermal Expansion (reference 20°C) [10^-6*K^-1] Specific Electrical Resistance [µΩm] Mean Specific Heat Capacity [kJ/(kg*K)]
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Cross Reference

Material Name Country Standard
N06686 USA UNS
ERNiCrMo-14 USA ASME SFA5.14
B163 UNS N06686 USA ASTM B163
B366 UNS N06686 USA ASTM B366
B462 UNS N06686 USA ASTM B462
B564 UNS N06686 USA ASTM B564
B574 UNS N06686 USA ASTM B574
B575 UNS N06686 USA ASTM B575
B619 UNS N06686 USA ASTM B619
B622 UNS N06686 USA ASTM B622
B626 UNS N06686 USA ASTM B626
B924 UNS N06686 USA ASTM B924
F467 Alloy 686 USA ASTM F467
G28 UNS N06686 USA ASTM G28
ERNiCrMo-14 USA AWS A5.14
NiCr21Mo16W Germany DIN 17750
NiCr21Mo16W Germany DIN 17751
NiCr21Mo16W Germany DIN 17752
NiCr21Mo16W Germany DIN 17753

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