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Incoloy 800 B409 Plates

Material Grade: Incoloy 800 (UNS N08800)

Standard Specification: ASTM B409 / ASME SB409

Alloy Composition: Nickel-Iron-Chromium (Ni-Fe-Cr)

Thermal Stability: Resistant to Oxidation up to 815°C (1500°F)

Process Edge: Excellent Resistance to Carburization & Nitriding

Mechanical Advantage: High Rupture & Creep Strength

Thickness Range: 0.5 mm to 50 mm

Primary Industries: Heat Exchangers, Power Plants, & Furnace Components

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Incoloy 800 (UNS N08800) Plates, manufactured to the ASTM B409 standard, are widely recognized for their exceptional structural stability and resistance to high-temperature degradation. This nickel-iron-chromium alloy is specifically engineered to provide a cost-effective solution for applications requiring a combination of high strength and resistance to oxidation and carburization at service temperatures up to 815°C (1500°F). The high chromium content facilitates the formation of a stable, protective oxide scale, while the nickel content maintains a ductile, austenitic structure, making these plates highly reliable for long-term thermal service.

The technical versatility of ASTM B409 Incoloy 800 makes it a staple in both the power generation and hydrocarbon processing industries. It is particularly effective in environments involving steam-methane reforming and ethylene pyrolysis, where resistance to carbon absorption is critical. These plates are frequently used in the construction of heat exchangers, process piping, furnace components, and pressure vessels. Furthermore, Incoloy 800 exhibits excellent resistance to many aqueous corrosive media, providing a dual advantage in processes that fluctuate between high-temperature operation and ambient-temperature shutdowns. With its superior creep and stress-rupture properties, Incoloy 800 remains a dependable choice for high-performance industrial engineering.

Incoloy 800 B409 Plates Features

» High-Temperature Oxidation Resistance: Formulates a stable, adherent oxide scale that protects the material from degradation in oxidizing atmospheres up to 815°C (1500°F).
» Carburization and Nitriding Resistance: The alloy's chemistry provides a robust defense against carbon and nitrogen absorption, extending the life of furnace and petrochemical components.
» Excellent Mechanical Strength: Maintains high tensile and yield strength at elevated temperatures, ensuring structural integrity in high-stress thermal environments.
» Creep and Rupture Performance: Engineered to withstand long-term exposure to high heat and pressure without excessive deformation or premature failure.
» Aqueous Corrosion Resistance: Offers good resistance to many organic and inorganic acids, as well as chloride stress-corrosion cracking, particularly in high-purity water.
» Metallurgical Stability: Resists embrittlement and maintains its austenitic structure during prolonged exposure to high temperatures, ensuring consistent performance.
» Ease of Fabrication: Can be readily formed, machined, and welded using standard industrial techniques, allowing for the construction of complex heat exchanger shells.
» Cost-Effective Superalloy: Provides a balanced combination of high-temperature performance and economical alloy composition compared to higher nickel-content grades.

Incoloy 800 B409 Plates Specification

Standards

ASTM Standard: B409
ASME Standard: SB409
UNS Number: N08800
WNR Number: 1.4876

Chemistry

Nickel (Ni): 30.0% – 35.0%
Chromium (Cr): 19.0% – 23.0%
Iron (Fe): 39.5% Min
Al + Ti: 0.30% – 1.20%

Mechanical Data

Yield Strength: 205 MPa (Min)
Tensile Strength: 520 MPa (Min)
Elongation: 30% (Min)
Hardness: 150 HB (Max)

Thermal Info

Max Operating: 815°C (1500°F)
Melting Point: 1357 – 1385°C
Thermal Cond: 11.5 W/m·K
Expansion Coeff: 14.4 µm/m·°C

Size Range

Thickness: 0.5 mm to 50 mm
Width: Up to 2500 mm
Length: Up to 12000 mm
Condition: Annealed / Descaled

Quality Control

MTC: EN 10204 3.1
Testing: Tensile / Grain Size
Compliance: NACE / PED / ISO
Finish: No.1 / 2B / BA

Incoloy 800 B409 Plates Detailed Specifications

Property	Specification
Specification	ASTM B409 / ASME SB409
Width	1000mm - 2500mm
Thickness	1.0mm - 100mm
Length	2000mm - 6000mm
Supply Condition	Hot-Rolled, Cold-Rolled, Annealed, and as per customer requirements.
Impact Tested	-196°C
Process of Manufacturing	Hot-Rolled, Cold-Rolled, Annealing, Pickling, and Passivation

Incoloy 800 B409 Plates Chemical Composition

Element	Composition %
Nickel (Ni)	30.0 - 35.0
Iron (Fe)	39.0 - 46.0
Chromium (Cr)	19.0 - 23.0
Carbon (C)	0.07 max
Manganese (Mn)	1.5 max
Silicon (Si)	1.0 max
Sulfur (S)	0.015 max
Phosphorus (P)	0.03 max

Incoloy 800 B409 Plates Mechanical Properties

Property	Value
Tensile Strength	70,000 psi (483 MPa) min
Yield Strength	30,000 psi (207 MPa) min
Elongation	30% (in 2 inches / 50 mm)
Hardness	Rockwell B: ≤ 85
Modulus of Elasticity	210 GPa

Incoloy 800 B409 Plates Equivalent Grades

Standard	ASTM B409	ASME SB409	EN	UNS	Werkstoff Nr.	ISO
Equivalent Grade	Incoloy 800	Incoloy 800	1.4876	N08800	1.4876	800

Industrial Locations & Keywords

Industrial Locations & Keywords
Riyadh Industrial Cities (1st, 2nd, 3rd & Sudair)
Jeddah Industrial Cities (1st, 2nd & 3rd)
Dammam Industrial Areas (1st, 2nd & 3rd)
Jubail Industrial City
Yanbu Industrial City
Rabigh Industrial City
Al Khobar Industrial Area
Al Ahsa Industrial City
Madinah Industrial City
Makkah Industrial City
Taif Industrial City
Tabuk Industrial City
Jazan Industrial City
Industrial supplier in Saudi Arabia
Pipe fittings supplier in Jubail / Dammam / Riyadh
Flange and valve supplier Saudi Arabia
Fast delivery industrial materials KSA