Project Description

0Cr21Al6 (W.Nr. 1.4767)  is an iron-chromium-aluminium alloy for use at temperatures up to 1250℃.

Equivalent Grades

TrademarkGBGOSTASTMUNSDINW.Nr.NFBSJISSS
0Cr21Al6CrAl20 51.4767

Chemical Composition, %

AlloyCSiMnPSCrNiAlFe
0Cr21Al6≤0.06≤1.00≤0.70≤0.025≤0.02519.0-22.0≤0.605.0-7.0Bal

Mechanical Properties (RT, Annealed)

Tensile Strength, Rm/MPaElongation, A/%
Dia. >3.00mm (Wire)
Thk. >0.20mm (Strip)
Dia. 0.10-3.00mm (Wire)
Thk. ≤0.20mm (Strip)
≥600≥15≥12

Physical Properties

Max Working Temp., Melting Point, Density, g/cm3Resistivity, μΩ·m 20℃Specific Heat, J/(g•K)Thermal Conductivity, W/(m•K) 20℃Average Coefficient of Thermal Expansion,α×10-6/℃ 20-1000℃Micrographic StructureMagnetic Properties
125015007.161.420.451314.0FerriteMagnetic

Life Test

Test Temperature, ℃Continuous Service Time Hours, ℃
1300≥80

Temperature Factor of Resistivity

20℃100℃200℃300℃400℃500℃600℃700℃800℃900℃1000℃1100℃1200℃1300℃
1.0001.0001.0021.0061.0111.0201.0371.0431.0461.0491.0521.0551.058

Available Products and Specifications

Rod, Bar, Wire and ForgingsGB/T 1234-2012, ASTM B603-01, DIN 17470-1984
Plate, Sheet and StripGB/T 1234-2012, ASTM B603-01, DIN 17470-1984
Pipe and Tube
Welding Product
Others

Features

  • High resistivity
  • Low temperature coefficient of electric resistance
  • High operating temperature
  • Good oxidation resistance under high temperature

Applications

0Cr21Al6 is typically used in industrial furnaces and home appliances.

  • Panel heaters
  • Infrared heaters
  • Warming plates
  • Irons
  • Ceramic pots
  • Cartridge heaters for liquid heating
  • Storage heaters
  • Ceramic heaters for cooking plates
  • Air guns
  • Hobby kilns
  • Radiators
  • Quartz tube heaters for space heating
  • Toasters
  • Toaster ovens
  • Grills
  • Industrial infrared dryers
  • Coils on molded ceramic fibre for cooking plates with ceramic hobs