Alloy 800H Material

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Alloy 800H N08810 1.4958 material

Alloy 800H Pipe/Tube/Accessories

  • Grade:Alloy 800H, 1.4958, N08810, X10NiCrAlTi32-20
  • OD: 6mm-630mm, 1/4"-24"
  • WT: 0.7mm-30mm, Sch 10S-Sch XXS
  • Length: Fixed or random length as specified
  • Specifications: ASTM A240, B163, B407, B408, B409, EN10028-7
  • Delivery Condition: Annealed and Pickled, Birght Annealed, Mechanical Polished, Electric Polished
  • Mill Certificate: EN 10204 3.1, EN10204 3.2
  • Marking: Continuosly stenciled as specified.
  • Packing: In bundle or plywood cases with end caps
  • Manufacturing: Seamless, Welded


INCOLOY alloys 800H and 800HT have significantly higher creep and rupture strength than INCOLOY alloy 800. The three alloys have nearly identical chemical composition limits. As Table 1 shows, the base elements in all three alloys are the same. However, chemical composition limits vary with carbon, aluminum and titanium. The carbon content of INCOLOY alloy 800 (UNS N08800) is 0.10% max with no limit on the lower end. The carbon content for INCOLOY alloy 800H (UNS N08810) is 0.05 to 0.10%, which is the upper end of the 0.10% maximum specified for INCOLOY alloy 800. The chemical limits for INCOLOY alloy 800HT (UNS N08811) are even more restrictive yet still within the limits specified for INCOLOY alloy 800H.

Chemical Composition:

% Ni Cr Mo Fe Ti C Si p Mn Al Cu S
Min 30 19 - 39.5 0.15 0.05 - - - 0.15 - -
Max 35 23 - - 0.6 0.1 1 - 1.5 0.6 0.75 0.015

Mechanical Property:

20°C Tensile Strength Yield Strength Elongation % Hardness Density
Min 448Mpa 172Mpa 30% - 7.94kg/dm3
Max - - - - 7.94kg/dm3


> Chemical and petrochemical processing >Super-heater and re-heaters in power plants
>Hydrocarbon cracking >Chemical and petrochemical processing
>Industrial furnaces >Pressure vessels

Range of Products:

Plates / Sheets / Coil Heavy Plate
Cold Rolled Sheet
Hot Rolled Sheet
Fittings Seamless LR Elbow / Welded LR Elbow
Con Reducer / Ecc Reducer
Con Tee / Ecc Tee / Cross
Coupling / Cap
Flange Blind Plate Flanges
Lap Joint Flanges
Raised Face Blind Flanges
Raised Face Slip On Flanges
Raised Face Socket Weld Flanges
Raised Face Threaded Flanges
Raised Face Weld Neck Flanges
Slip On Plate Flanges
Blind Plate Flanges
Pipe / Tube Seamless Pipe
Welded Pipe
Seamless Tube
Welded Tube
Seamless U-Tube
Welded U-Tube
Square Tube
Rectangular Tube
Bar Round Bar
Square Bar
Flat Bar
Angel Bar
Hexagon Bar

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