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(English) Alloy 347

(English) Alloy 347 from NeoNickel offers superior resistance to intergranular corrosion. It’s also suitable for high temperature service, due to its good mechanical properties. Alloy 347 is now available from NeoNickel Hranice.



CrNiCb + TaCSiMnPSFe
MIN17.09.0Cb 10xc
(Cb 8xC)



  • Oil Refineries
  • Fluid catalytic cracking units
  • Hanger rods
  • Recuperator tube sheets
  • Fired heater tubes
  • Equipment in and around reactors


(English) Density: 0.286 lb/inch3
Melting Point: 1398.88 – 1446.11°C

Temperature, °C21.11100500
Coefficient* of Thermal Expansion, in/in°C x 10-69.2
Thermal Conductivity
Btu • ft/ft2 • hr • °C
Modulus of Elasticity, Dynamic psi x 10628

Mechanical Properties

(English) Minimum Specified Properties, ASTM A 240

Tensile Strength, ksi75
0.2% Yield Strength, ksi30
Elongation, %40
Hardness Max, Brinell201

Typical Tensile and Impact Properties

Temperature, °C20204.44426.66537.77648.88732.22815.55
Ultimate Tensile Strength, ksi93.373.669.563.552.339.326.4
0.2% Yield Strength, ksi36.536.629.727.424.522.818.6

Leider ist der Eintrag nur auf Amerikanisches Englisch verfügbar.

(English) Technical Resources