ASTM A297 HL

Equivalent grade:

● UNS N08604
● ASTM A297/297M-14 Grade HL
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◉ Available Products

●  Furnace door

●  Heat-resistant furnace bottom plate

●  Heat-resistant guard plate

●  Precision cast heat-resistant frames and trays

●  Heat-resistant heat treatment tooling and fixtures

●  Cement drying kiln components

●  Ore roasting furnace components

●  High-temperature heat radiation tubes

●  Heat-resistant heat exchanger tube supports and clamps

●  Heat-resistant screws and spirals

●  Coal injection nozzles for power plants

●  Heat-resistant slide rails

●  Heat-resistant U-shaped radiant tubes

●  Heat-resistant centrifugal cast tubes

●  Heat-resistant cantilever rollers, rollers, roller heads

●  Lost wax precision cast heat-resistant sliders

●  Heat-resistant steel pusher

●  High-temperature thermometer casings

●  Kiln mouth and kiln tail protection plates

●  Aluminum factory-specific heat-resistant grapples, aluminum slag grapples

●  Cement factory high-temperature grinding drums

●  Wind caps for power plants

●  Incinerator grate bars

●  Heat treatment support rods

●  Walking beam furnace heat-resistant cantilever rollers

●  Heat-resistant rolling mill rolls

●  High-temperature hot press molds

●  Steel mill heat-resistant furnace covers

●  Heat-resistant mesh belt furnace bottom plates

◉ Product Details

Chemical composition

%CMnSiPSCrNiMo
Min0.2



28.018
Max0.62.002.000.040.0432.0220.50

 

Physical properties

Density7.8 g/cm3
Melting1370°C and 1410°C


Material properties

UNS N08604, also known as ASTM Grade HL, is a high chromium-nickel austenitic stainless steel formulated for casting. It exhibits excellent resistance to high temperatures and corrosion, making it suitable for use in harsh environments. This grade is known for maintaining its mechanical properties at elevated temperatures and providing a stable performance in industrial applications involving heat.


Advantage

  1. Exceptional high-temperature corrosion resistance.
  2. Maintains strength and toughness at elevated temperatures.
  3. Resists oxidation and carburization in high-heat settings.
  4. Suitable for casting complex, high-precision parts.
  5. Provides long-term reliability under thermal cycling.

 

Application

UNS N08604 is extensively used in the aerospace, automotive, and chemical processing industries for fabricating parts that require excellent heat resistance, such as furnace parts, turbine components, and other high-temperature castings. Its robust properties make it ideal for applications where both thermal stability and corrosion resistance are crucial.


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