Specification
Chemical Composition
Incoloy 800HT Plates are high-temperature nickel-iron-chromium alloy plates designed for excellent oxidation resistance, carburization resistance, and creep strength. Manufactured under ASTM B409 Incoloy 800HT Plate and ASME SB409 UNS N08811 Plate specifications, these plates are widely used in heat treatment equipment, petrochemical plants, power generation, industrial furnaces, and pressure vessel applications where prolonged exposure to elevated temperatures is common.
Detailed Information
Incoloy 800HT Plate Supplier | ASME SB409 UNS N08811 Plates
We are a trusted Incoloy 800HT plate supplier offering high-quality nickel alloy plates for demanding industrial environments. Our inventory includes ASTM B409 Incoloy 800HT plate, ASTM B409 Incoloy 800HT sheet, ASME SB409 UNS N08811 plate, W.Nr. 1.4959 plate, DIN 1.4959 sheet, and other premium products manufactured to international quality standards.
As an experienced Incoloy 800HT plate manufacturer and alloy 800HT plate stockist, we supply plates, sheets, coils, strips, and custom-cut blanks suitable for industries requiring exceptional resistance to oxidation, carburization, and creep deformation.
The alloy contains controlled amounts of aluminium and titanium, along with higher carbon content than standard Alloy 800, giving it improved high-temperature strength. These characteristics make UNS N08811 nickel alloy plate a preferred material for equipment operating continuously above 600°C.
Whether you require Incoloy 800HT hot rolled plate, Incoloy 800HT cold rolled sheet, or Incoloy 800HT 2B / No. 1 finish plate, we provide reliable products with complete material traceability and inspection documentation.
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Specifications of Incoloy 800HT Plates & Sheets
|
Specification |
Details |
|
Material |
Incoloy 800HT |
|
UNS Number |
UNS N08811 |
|
Werkstoff Number |
W.Nr. 1.4959 |
|
DIN Grade |
DIN 1.4959 Sheet |
|
ASTM Standard |
ASTM B409 Incoloy 800HT Plate |
|
ASME Standard |
ASME SB409 UNS N08811 Plate |
|
Product Forms |
Plate, Sheet, Coil, Strip |
|
Thickness |
0.5 mm to 100 mm |
|
Width |
1000 mm to 2500 mm |
|
Length |
Up to 6000 mm |
|
Finish |
2B, BA, No.1, Hot Rolled, Cold Rolled, Polished |
|
Origin |
Mill Tested Material |
Chemical Composition of ASTM B168 Alloy 800HT Plate
| Grade | C | Mn | Si | S | Cu | Fe | Ni | Cr | Al | Ti |
| 800HT | 0.06 – 0.10 | 1.50 max | 1.00 max | 0.015 max | 0.75 max | 39.50 min | 30.00 – 35.00 | 19.00 – 23.00 | 0.15 – 0.60ᴬ | 0.15 – 0.60ᴬ |
ASTM B168 Alloy 800HT Sheet Mechanical Properties
| Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 800HT | 7.94 g/cm3 | 1385 °C (2525 °F) | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa – 205 | 30 % |
Equivalent Grades of Incoloy 800HT Plate
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN | OR |
| Incoloy 800HT | 1.4859 / 1.4876 | N08811 | NCF 800HT | NA 15(HT) | ЭИ670 | – | X8NiCrAlTi32-21 | XH32T |
| UNS N08811 Incoloy 800HT Plate density |
|
| ASTM B168 Alloy 800HT Plate melting range |
|
Types of Incoloy 800HT Plate/Sheet We Manufacture, Stock & Supply:
| Alloy 800HT Incoloy Plate Mill Finish | Alloy 800HT Inconel Thin Plate |
| Inconel 800HT Clad Plate | Alloy Incoloy 800HT Tisco Plate |
| Incoloy Alloy 800HT Plate 2b Finish | Inconel 800HT Diamond Plate |
| Alloy 800HT Inconel Chequer Plate | Incoloy 800HT Din 1.4859 Tread Plate |
| Alloy Incoloy 800HT Checker Plate | N08811 Alloy 800HT Polished Plate |
| Nickel Alloy 800HT Plate | SB168 Alloy 800HT Rolling Plate |
| Incoloy 800HT Alloy Hot Rolled Plate | Incoloy Alloy 800HT Perforated Plate |
| SB168 Alloy 800HT Cold Rolled Plate | Alloy 800HT Incoloy Bbq Plate |
| Incoloy 800HT Chequered Plate | Incoloy 800HT Alloy Quarto Plate |
| Incoloy UNS No 8811 Embossed Plate | Nickel Alloy 800HT Plasma Cutting Plate |
| ASTM B168 Incoloy 800HT 1/4 Inch Plate | ASTM B168 800HT Incoloy Perforated Sheet |
| Incoloy N08811 Custom Cut Plate | Incoloy UNS No 8811 Sheet |
| ASTM B168 800HT Incoloy Checkered Plate | Incoloy 800HT Laser Cut Plate |
| Incoloy 800HT Din 1.4859 Plate Mirror Finish | Incoloy 800HT Nickel Chequered Plate |
| N08811 Alloy 800HT Plate Brushed Finish | ASTM B168 Incoloy 800HT Hot Rolled Sheet |
| Incoloy 800HT Nickel 10mm Plate | Incoloy N08811 Cold Rolled Sheet |
| Incoloy 800HT Circle | Incoloy 800HT Tubesheet |
| ASTM B409 Incoloy 800HT Plate |
ASTM B409 Incoloy 800HT Sheet |
| W.Nr. 1.4959 Plate | ASME SB409 UNS N08811 Plate |
| DIN 1.4959 Sheet |
UNS N08811 Nickel Alloy Plate |
| Incoloy 800HT Cold Rolled Sheet | Incoloy 800HT Hot Rolled Plate |
| Incoloy 800HT 2B Finish Plate |
Incoloy 800HT No.1 Finish Plate |
Size chart of Incoloy 800HT Plate
| Stocked Sizes | |
| Size (in inches) | Size (in mm) |
| .125″ | 3.18mm |
| .134″ | 3.40mm |
| .156″ | 3.96mm |
| .187″ | 4.75mm |
| .250″ | 6.35mm |
| .312″ | 7.92mm |
| .375″ | 9.53mm |
| .500″ | 12.7mm |
| .600″ | 15.9mm |
| .750″ | 19.1mm |
| .875″ | 22.2mm |
| 1″ | 25.4mm |
| 1.125″ | 28.6mm |
| 1.250″ | 31.8mm |
| 1.500″ | 38.1mm |
| 1.750″ | 44.5mm |
| 2″ | 50.8mm |
| 2.500″ | 63.5mm |
| 3″ | 76.2mm |
Dimensions: widths 1000/1220/1500 mm, lengths 2000/2500/3000 mm.
Dimensions of Incoloy 800HT Plate
ASTM B168 Alloy 800HT Plate Imperial Dimensions
| Plate Surface finish | Gauge (in) | Width (max in) |
| 2B – Cold rolled, heat treated, pickled, skin passed Plate | 10–24 | 72* |
| 2D – Cold rolled, heat treated, pickled plate | 12–24 | 60 |
| BA Mexinox only | 18–28 | 48 |
| Polished plate (not brushed) | 11–24 | 60 |
| Temper rolled plate Mexinox only | 13–29 | 48 |
ASTM B168 800HT Alloy Plate Metric Dimensions
| Plate Surface finish | Thickness (mm) | Width (max mm) |
| 2B – Cold rolled, heat treated, pickled, skin passed plate | 0.25–8.0 | 2032 |
| 2D – Cold rolled, heat treated, pickled plate | 0.4–6.35 | 1524 |
| 2E – Cold rolled, heat treated, mechanically descaled plate | 0.4–8.0 | 2032 |
| 2R – Cold rolled, bright annealed plate | 0.25–3.5 | 1524 |
| 2H – Work hardened plate | 0.4–6.35 | 1524 |
| Polished, brushed plate | 0.5–4.0 | 1524 |
in a variety of thicknesses available shown below:
|
0.5 mm 0.6 mm 0.8 mm 1.0 mm 1.2 mm 1.5 mm 1.6 mm 1.8 mm 2.0 mm 3.0 mm |
4.0 mm 5.0 mm 6.0 mm 8.0 mm 10.0 mm 12.0 mm 15.0 mm 20.0 mm 25.4 mm |
Weight per Unit of Alloy 800HT Inconel Plate
Incoloy 800HT Sheet Weight & Density
| Thickness | Alloy | Plate Weight per Unit Area | Density |
| 3/16 inches | Incoloy 800HT | 0.06000 lbs/in²42.184176 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/4 inches | Incoloy 800HT | 0.08 lbs/in²56.245568 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/8 inches | Incoloy 800HT | 0.121 lbs/in²85.0714216 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1/2 inches | Incoloy 800HT | 0.161 lbs/in²113.1942056 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 5/8 inches | Incoloy 800HT | 0.196 lbs/in²137.8016416 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3/4 inches | Incoloy 800HT | 0.235 lbs/in²165.221356 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 7/8 inches | Incoloy 800HT | 0.274 lbs/in²192.6410704 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 inches | Incoloy 800HT | 0.313 lbs/in²220.0607848 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/4 inches | Incoloy 800HT | 0.391 lbs/in²274.9002136 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 1/2 inches | Incoloy 800HT | 0.47 lbs/in²330.442712 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 1 3/4 inches | Incoloy 800HT | 0.549 lbs/in²385.9852104 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 inches | Incoloy 800HT | 0.627 lbs/in²440.8246392 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 1/4 inches | Incoloy 800HT | 0.705 lbs/in²495.664068 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 1/2 inches | Incoloy 800HT | 0.784 lbs/in²551.2065664 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 2 3/4 inches | Incoloy 800HT | 0.862 lbs/in²606.0459952 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
| 3 inches | Incoloy 800HT | 0.941 lbs/in²661.5884936 kg/m² | 0.315 lbs/in³8.72 g/cm³ |
Applications of ASTM B409 Incoloy 800HT Plate
The excellent high-temperature strength of ASTM B409 Incoloy 800HT plate makes it suitable for numerous industries.
Typical applications include:
- Petrochemical processing
- Heat treatment furnaces
- Power generation plants
- Fertilizer plants
- Refineries
- Chemical processing industries
- Pressure vessels
- Heat exchangers
- Furnace fixtures
- Radiant tubes
- Steam superheaters
- Boiler equipment
- Industrial kilns
- Nuclear engineering
- Thermal processing equipment
Why Customers Want Us to be Their Incoloy 800HT Plate Supplier?
Selecting the right material supplier is essential for project quality and long-term performance. We focus on supplying certified nickel alloy products that meet international specifications and customer requirements.
Why customers choose us:
- Large inventory ready for immediate dispatch
- Experienced Incoloy 800HT plate manufacturer
- Reliable alloy 800HT plate stockist
- Global UNS N08811 plate exporter
- Third-party inspection available
- Mill Test Certificates (EN 10204 3.1)
- Competitive pricing
- Custom cutting services
- Fast worldwide shipping
- Technical support for material selection
Every order undergoes strict quality checks to ensure dimensional accuracy, mechanical integrity, and compliance with ASTM and ASME standards.
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