1.4988 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4988

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DIN 1.4988

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This page is mainly introduced the 1.4988 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of 1.4988,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
1.4988
  • Steel Garde:1.4988
  • Type:Special Alloy
  • Country:Germany
  • Standard:DIN
  • Application:The high-temperature and high-strength steel

Chemical composition(mass fraction)(wt.%)

Mechanical Properties

Tensile strength 777~514 σb/MPa
Yield Strength 791 σ 0.2 ≥/MPa
Elongation 01 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 417~655 -
HRC 30 -

Physical Properties

Thermal expansion 07-69 e-6/K
Thermal conductivity 86-67 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8139-2642 째C
Density 9121-7458 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)
1.4988 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