ML28B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML28B

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GBT ML28B

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This page is mainly introduced the ML28B chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ML28B,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ML28B
  • Steel Garde:ML28B
  • Type:Special Alloy
  • Country:China
  • Standard:GBT
  • Application:China structural steel and alloy steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 942~402 σb/MPa
Yield Strength 184 σ 0.2 ≥/MPa
Elongation 24 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 068~196 -
HRC 30 -

Physical Properties

Thermal expansion 28-06 e-6/K
Thermal conductivity 69-26 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 4274-8713 째C
Density 0811-8999 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)
ML28B 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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