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B 344 Ni80-Cr20

Description

USA SAE B 344 (2011), B 344 Ni80-Cr20 Specialsteel Drawn or Rolled Nickel-Chromium and Nickel-Chromium-Iron Alloys for Electrical Heating Elements and Mechanical Properties, Chemical Element, Cross Reference, Datasheet.

Datasheet for: Steel Grades:Specialsteel: B 344 Ni80-Cr20
Category Class Grade Type Standard Country Application
Steel GradesSpecialsteel B 344 Ni80-Cr20 Precipitation-Hardening SAE USA Drawn or Rolled Nickel-Chromium and Nickel-Chromium-Iron Alloys for Electrical Heating Elements

Chemical composition(mass fraction)(wt.%) of the B 344 Ni80-Cr20

C Si Mn Cr Ni Mo Co W Al Cu Ti Fe Nb
≤0.12 ≤0.30 ≤0.80 ≤19.00 ≤14.00 ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤ ≥ ≤remaining ≤1.60

Mechanical Properties of steel grade B 344 Ni80-Cr20

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV/Ku (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition Brinell hardness (HBW)
319 (≥) 677 (≥) 34 33 13 Solution and Aging, Annealing, Ausaging, Q+T,etc 333

Physical Properties of steel grade B 344 Ni80-Cr20

Temperature
(°C)
Modulus of elasticity
(GPa)
Mean coefficient of thermal expansion 10-6/(°C) between 20(°C) and Thermal conductivity
(W/m·°C)
Specific thermal capacity
(J/kg·°C)
Specific electrical resistivity
(Ω mm²/m)
Density
(kg/dm³)
Poisson’s coefficient, ν
33 - -     0.33 -  
429 841 - 43.3 214   -  
395 - 31 22.2   212 123

Heat Treatment of steel grade B 344 Ni80-Cr20

Heat treated : 1157°C - 1831°C

Technological Curves of steel grade B 344 Ni80-Cr20

Cross Reference Table (Equivalent Grade) of B 344 Ni80-Cr20

Relevant standard of B 344 Ni80-Cr20

B 344 (2011) Drawn or Rolled Nickel-Chromium and Nickel-Chromium-Iron Alloys for Electrical Heating Elements B-344-(2011).pdf

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