A 988 S17400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 988 S17400

SAE A 988 S17400

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This page is mainly introduced the A 988 S17400 chemical information,mechanical properties, physical properties, mechanical properties, heat treatment, and Micro structure, etc. It also contains the use of A 988 S17400,such as it is commonly used in bars, sheet,plates, steel coils, steel pipes,forged and other materials application.
Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service
  • Steel Garde:A 988 S17400
  • Type:Stainless Steels
  • Country:USA
  • Standard:SAE
  • Standard Number:
    ITEM Standard Number Descriptions
    1 A 988/A 988M (2011) Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service
  • Metallographic Structure:Precipitation-Hardening
  • Application:Hot Isostatically-Pressed Stainless Steel Flanges, Fittings, Valves, and Parts for High Temperature Service

Chemical composition(mass fraction)(wt.%)

Elements Min.(≥) Max.(≤) Similar Remarks
C   0.07
Mn   1.00
Si   1.00
P   0.04
S   0.03
Cr 15.50  17.50
Ni 3.00  5.00
Mo  
Cu 3.00  5.00
Nb 0.15  0.45

Mechanical Properties

Tensile strength 726~394 σb/MPa
Yield Strength 430 σ 0.2 ≥/MPa
Elongation 67 δ5≥(%)
ψ - ψ≥(%)
Akv - Akv≥/J
HBS 392~731 -
HRC 30 -

Physical Properties

Thermal expansion 50-38 e-6/K
Thermal conductivity 95-81 W/m.K
Specific heat 450-460 J/kg.K
Melting temperature 8870-7981 째C
Density 4409-6701 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)
A 988 S17400 Stainless Steels 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