Grades | Stainless Steels | B 344 Ni80-Cr20

SAE B 344 Ni80-Cr20 ( Precipitation-Hardening )

PDF | Word | Print

B 344 Ni80-Cr20 Application: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
Elements Min.(≥) Max.(≤) Similar Remarks
C - 0.12
Si - 0.30
Mn - 0.80
Cr - 19.00
Ni - 14.00
Mo - -
Co - -
W - -
Al - -
Cu - -
Ti - -
Fe - remaining
Nb - 1.60

Mechanical properties of grade B 344 Ni80-Cr20

Yield
Rp0.2 (MPa)
Tensile
Rm (MPa)
Impact
KV (J)
Elongation
A (%)
Reduction in cross section on fracture
Z (%)
As-Heat-Treated Condition HBW
894 (≥) 966 (≥) 24 33 22 Solution and Aging, Annealing, Ausaging, Q+T,etc 444

Physical properties of grade B 344 Ni80-Cr20

Property Density
kg/dm3
Temperature T
°C/F
Specific heat
J / kgK
Thermal conductivity
W/mK
Electric resistance
µΩ·cm
481 (≥) 538 (≥) 43 13 24 Solution and Aging, Annealing, Ausaging, Q+T,etc
Temp.
°C/°F
Creep strain limit
(10000h)
(Rp1,0) N/mm2
Creep rupture strength
(10000h)
(Rp1,0) N/mm2
- - -
352 378 411 - - -

B 344 Ni80-Cr20 Range of products
Product type Products Dimension Processes Deliver Status
Plates / Sheets Plates / Sheets 0.08-200mm(T)*W*L Forging, hot rolling and cold rolling Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Steel Bar Round Bar, Flat Bar, Square Bar Φ8-1200mm*L Forging, hot rolling and cold rolling, Cast Black, Rough Turning, Shot Blasting,
Coil / Strip Steel Coil /Steel Strip 0.03-16.0x1200mm Cold-Rolled & Hot-Rolled Annealed, Solution and Aging, Q+T, ACID-WASHED, Shot Blasting
Pipes / Tubes Seamless Pipes/Tubes, Welded Pipes/Tubes OD:6-219mm x WT:0.5-20.0mm Hot extrusion, Cold Drawn, Welded Annealed, Solution and Aging, Q+T, ACID-WASHED