Hempel Special Metals

Alloy 617 / 2.4663

Alain Gonzalez

CEO

+33 472 94 98 90
Alain Gonzalez

2.4663 is a nickel-chromium-cobalt-molybdenum alloy with a good weldability, high strength and excellent creep properties. Alloy 617 is also resistant to high-temperature corrosion, oxidation and carburization.

Material Data Sheet

Material Designation2.4663
AlloyAlloy 617
EN Material SymbolNiCr23Co12Mo
UNSN 06617
TrademarkNicrofer® 5520 Co
VdTÜV Data Sheet485
NormDIN EN 17744

Main fields of application of alloy 617

Alloy 617 is applied at high temperatures. Alloy 617 is used in air heaters, furnace components, beam pipes or high-temperature heat exchangers as well as in gas turbines and combustion chambers.

Chemical composition of alloy 617

CSiMnPSCrMo
0.05-0.10.70.70.0120.00820.0-23.08.0-10.0
NiAlCoCuFeTiB
rest0.6-1.510.0-13.00.520.02-0.50.006

Characteristics of alloy 617

Temperature RangeHigh-Temperature Range
Density8.4 g/cm³
Melting Range1330 – 1380°C
ISO-V notch impact toughness≤ 100 J/cm² (across)
ISO V-Notched impact strength≤ 150 J/cm² (lengthwise)

Filler metal (for welding with alloy 617)

Welding Rods: FM 617- 2.4627

Wire Electrodes: AWS A5.14: ERNiCrCoMo-1 DIN EN ISO 18274: S Ni 6617

Covered Rod Electrodes: 2.4628 UNS W86117 AWS A5.11: ENiCrCoMo-1 DIN EN ISO 14172: E Ni 6617

Delivery program

Sheets or Plates: 12,5 mm With short delivery time: plates or sheets, tubes, flanges, forged or die-cut rings and round blanks, elbows, T-fittings, reductions, screws, nuts or washers according to your request. According to your individual wishes, we are able to cut our material with our plasma- or water jet cutter. Our material is stocked in superformats of 2000x6000mm. Cut to size on request.

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