• S31254
  • S31254
  • S31254
  • S31254
  • S31254


S31254 is a type of super austenitic stainless steel. It is composed of high molybdenum, chromium, and nickel content. TuoLian offers these high-end stainless steel with versatility for different functions.

  • High impact toughness
  • Cost-effective
  • High corrosion resistance
  • Excellent workability
  • Moderate mechanical strength
  • High ductility
  • Good weldability
  • Ideal for heat treatment

Professional S31254 Manufacturer in China – TuoLian

Tuolian offers S31254 stainless steel that can be easily fabricated, welded, and formed, making it a versatile material for a range of applications. It offers excellent mechanical properties, including high strength and toughness.

We manufacture S31254 in a wide range of sizes, dimensions, forms, and thicknesses. You can also choose custom-material specifications according to your requirements. As a professional manufacturer, we guarantee to provide high-quality S32154 for all your fabrication or project requirements.

Our S31254 is offered at a competitive price, low MOQ, and fast delivery to support your business. Send us your inquiries today!

Available in Different Forms

You can purchase our S31254 in an extensive form selection including:

  • Sheets
  • Flats
  • Plates
  • Round bars
  • Tubes
  • Coils
  • Flanges
  • Bars

Physical Properties

Density 7.8 g/cm3
Melting Point 1320-1390 °C
Coefficient of Thermal Expansion 13.7 µm/m·K (at 20-100°C)
Thermal Conductivity 13.3 W/m·K (at 20°C)
Electrical Resistivity 0.85 µΩ·m (at 20°C)
Magnetic Permeability < 1.05 (at 200 H)
Modulus of Elasticity 195 GPa (at 20°C)
Specific Heat Capacity 0.5 kJ/kg·K (at 20°C)

Mechanical Properties

Tensile Strength 650-900 MPa (94-130 ksi)
Yield Strength 300-350 MPa (44-51 ksi)
Elongation 35-50%
Hardness (Brinell) 210-260
Hardness (Rockwell B) 90-100
Charpy Impact Strength 100-150 J (74-111 ft·lbf)

Chemical Analysis

Element Minimum (%) Maximum (%)
Carbon (C) 0.020
Silicon (Si) 0.80
Manganese (Mn) 1.00
Phosphorus (P) 0.030
Sulfur (S) 0.010
Chromium (Cr) 19.50 20.50
Nickel (Ni) 17.50 18.50
Molybdenum (Mo) 6.00 6.50
Nitrogen (N) 0.18 0.22

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  • X6CrNiMoTi17-12-2
  • X5CrNi18-10 Stainless Steel
    X5CrNi18-10 stainless steel
  • X6Cr13 Stainless Steel
    X6Cr13 stainless steel
  • X6CR17 Stainless Steel

Other Designations and Equivalents

  • 4529
  • X1CrNiMoCuN20-18-7
  • Alloy 254
  • 245SMO
  • SMO254
  • A479
  • A473
  • F44
  • A240

Wide Range of Applications

  • Heat exchangers
  • Food-processing equipment
  • Desalination
  • Pumps
  • Chokes
  • Pipework
  • Valves
  • Flanges
  • Manifolds
  • Distillation columns
  • Chemical industry components
  • Bleaching equipment
  • Saltwater handling


S31254 is a high-performance alloy that is more difficult to machine compared to conventional austenitic stainless steels due to its high work-hardening rate and high strength.


S31254 is known to have good weldability with a range of welding techniques, including gas tungsten arc welding (GTAW/TIG), gas metal arc welding (GMAW/MIG), and shielded metal arc welding (SMAW/stick welding).

Hot Working

S31254 has good hot working capabilities, with a recommended working temperature range of 1150-950°C (2102-1742°F). Hot working can be performed using techniques such as forging, hot rolling, and extrusion.

Cold Working

If cold working is required, it is recommended to perform it at a temperature range of 20-40°C (68-104°F), which can help to minimize the risk of work hardening. Cold working techniques such as cold rolling, cold drawing, and cold forging can be used, but it is important to perform intermediate annealing steps to reduce the risk of cracking or failure.

Send Your Inquiry Now

One Stop Stainless Steel Supply.

Whether you need stainless steel materials for your business or fabrication projects, TuoLian is your best supplier. You can find all types, grades, and thicknesses based on your needs. Guaranteed that we provide the best quality at a reasonable cost.
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