U21252 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U21252

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GBT U21252

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This page is mainly introduced the U21252 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of U21252,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
U21252
  • Steel Garde:U21252
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 210~123 σb/MPa
Yield Strength 642 σ 0.2 ≥/MPa
Elongation 64 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 107~930 -
HRC 30 -

Physical Properties

Thermal expansion 07-34 e-6/K
Thermal conductivity 22-65 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8331-2071 째C
Density 2937-8086 kg/m3
Resistivity 0.50-0.60 Ohm.mm2/m
     

Heat Treatment Regime

Annealing

Quenching

Tempering

Normalizing

Q & T

Size Availability

Steel Grade Specification Processing range(mm)
U21252 Special Alloy Round Bar and Hollow Bar Φ1 to Φ2000
Square and Flat Steel Φ10 to Φ100
Plate and Sheet 0.08-800(Thickness)*10-1500(Width)*Length
Tube or Pipe OD:Φ4-410; WT:1-35 mm; Lenght:10-12000
Coil and Strip Steel THK:0.1mm Width:1500mm
Forged Ring/Cylindrical/Disk

Technical specification/standard for download

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