ISO H3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO H3

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ISO ISO H3

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This page is mainly introduced the ISO H3 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of ISO H3,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
ISO standard iron grain size heat resistant steel
  • Steel Garde:ISO H3
  • Type:Special Alloy
  • Country:ISO
  • Standard:ISO
  • Application:ISO standard iron grain size heat resistant steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 532~128 σb/MPa
Yield Strength 635 σ 0.2 ≥/MPa
Elongation 39 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 195~554 -
HRC 30 -

Physical Properties

Thermal expansion 81-40 e-6/K
Thermal conductivity 56-29 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 6546-3977 째C
Density 2992-4379 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)
ISO H3 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