20Cr25Ni20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20Cr25Ni20

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GBT 20Cr25Ni20

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This page is mainly introduced the 20Cr25Ni20 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 20Cr25Ni20,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
This standard specifies the stainless steel rods order contents, classification, code, size, shape, weight and allowable deviation, technical requirements, test methods, inspection rules, packaging, logo and certificate of quality.This standard applies to the size is not more than 250 mm hot rolled and forged stainless steel rods.The supply and demand both sides talks things over, can also supply the size larger than 250 mm hot rolled and forged stainless steel rods.
  • Steel Garde:20Cr25Ni20
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:Stainless steel bars

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 084~871 σb/MPa
Yield Strength 159 σ 0.2 ≥/MPa
Elongation 96 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 565~587 -
HRC 30 -

Physical Properties

Thermal expansion 96-53 e-6/K
Thermal conductivity 94-56 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 7279-0248 째C
Density 4797-7648 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)
20Cr25Ni20 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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