Nickel alloy 800|Incoloy 800|UNS N08800 Plate_

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Nickel alloy 800|Incoloy 800|UNS N08800 Plate

Incoloy Alloy 800

Gangsteel is Nickel alloy 800,Incoloy 800,UNS N08800 Plate supplier, a high-performance nickel-iron-chromium alloy renowned for its exceptional strength, corrosion resistance, and high-temperature stability. This detailed product introduction covers the specifications, chemical composition, mechanical properties, welding procedures, applications as a heating element, equivalent grades, and answers to frequently asked customer questions.

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1. Alloy 800 ASTM Specification

Incoloy Alloy 800 complies with stringent international standards to ensure quality and performance. Below are the primary ASTM standards applicable to this alloy:
a. Incoloy Alloy 800 Seamless & Welded Pipes / Tubes

Parameter	Range
Outside Diameter (OD)	6 mm – 114 mm(1/4" – 4.5")
Wall Thickness (WT)	0.5 mm – 12 mm
Length	Up to 12 meters(customizable)
Tolerance	As per ASTM B407 / B514
Form	Round tube / U-tube / Coiled tube

b. Incoloy Alloy 800 Plates / Sheets / Strips

Parameter	Range
Thickness	0.5 mm – 50 mm
Width	Up to 2000 mm
Length	Up to 6000 mmor customized
Standards	ASTM B409 / EN 10028-2 / ISO 6208
Surface Finish	2B / BA / No.1 / Brushed / Pickled

c. Incoloy Alloy 800 Round Bars / Rods

Parameter	Range
Diameter	6 mm – 300 mm
Length	1 m – 6 m, or cut to length
Type	Hot-rolled, Cold-drawn, Peeled
Standard	ASTM B408

d. Incoloy Alloy 800 Fittings & Flanges

Type	Availability
Elbow / Tee / Reducer	SCH10 to SCH160, ANSI/ASME B16.9
Flanges	Weld neck / Slip-on / Blind (1/2” – 24”)
Standards	ANSI B16.5 / B16.47 / DIN / JIS

Incoloy Alloy 800 standard

Form	ASTM Specification	ASME Specification
Plate, Sheet, Strip	ASTM B409	ASME SB-409
Pipe (Seamless)	ASTM B407	ASME SB-407
Pipe (Welded)	ASTM B514	ASME SB-514
Tube (Seamless)	ASTM B163	ASME SB-163
Fittings	ASTM B366	ASME SB-366
Forgings	ASTM B564	ASME SB-564

2. Incoloy Alloy 800 Chemical Composition

Incoloy Alloy 800 is a nickel-iron-chromium alloy with controlled carbon, aluminum, and titanium content for enhanced high-temperature properties.

Element	Composition (% by Weight)
Nickel (Ni)	30.0 - 35.0
Chromium (Cr)	19.0 - 23.0
Iron (Fe)	Balance (39.5 min)
Carbon (C)	0.10 max
Aluminum (Al)	0.15 - 0.60
Titanium (Ti)	0.15 - 0.60
Manganese (Mn)	1.50 max
Silicon (Si)	1.00 max
Sulfur (S)	0.015 max
Copper (Cu)	0.75 max

3. IncoloyAlloy 800 Mechanical Properties

Incoloy Alloy 800 exhibits excellent mechanical properties, making it suitable for high-temperature and corrosive environments.

Property	Value
Tensile Strength (min)	520 MPa (75 ksi)
Yield Strength (0.2% offset, min)	205 MPa (30 ksi)
Elongation (min)	30%
Hardness (Brinell, max)	200
Density	7.94 g/cm³
Melting Range	1357 - 1385°C (2475 - 2525°F)

Note: Properties may vary based on heat treatment and product form.

4. Alloy 800 Welding Procedure

Incoloy Alloy 800 can be welded using common techniques, ensuring strong and durable joints. Key considerations include:

Welding Methods: Gas Tungsten Arc Welding (GTAW/TIG), Gas Metal Arc Welding (GMAW/MIG), and Shielded Metal Arc Welding (SMAW).
Filler Metals: Recommended filler metals include Inconel 82 (ERNiCr-3) for TIG/MIG and Inconel 182 (ENiCrFe-3) for SMAW.
Pre-Weld Preparation: Clean surfaces to remove contaminants like oil, grease, or oxides.
Welding Parameters: Use low heat input to minimize grain growth and maintain corrosion resistance.
Post-Weld Treatment: Post-weld heat treatment is generally not required, but stress-relief annealing at 870°C (1600°F) may be applied for critical applications.

5. Alloy 800 as a Heating Element

Incoloy Alloy 800 is widely used in heating element applications due to its high-temperature strength and oxidation resistance. It is ideal for:

Industrial Furnaces: Withstands temperatures up to 1100°C (2000°F) in oxidizing atmospheres.
Electric Heaters: Provides excellent resistance to carburization and nitridation.
Petrochemical Processing: Used in reformer and cracker tubes due to its creep-rupture strength.

Specifications for Heating Elements:

Forms: Tubes, rods, or coiled wire.
Surface: Annealed and pickled for enhanced oxidation resistance.
Custom Sizes: Available in diameters and lengths tailored to specific furnace designs.

6. Alloy 800 Equivalent Grades with Standards

Incoloy Alloy 800 has several equivalent designations across international standards:

Standard	Designation
UNS	N08800
W. Nr./EN	1.4876
International Name	Nicrofer 3220, NAS 800, ATI 800
JIS	NCF 800
GB	NS1101

7. Frequently Asked Questions (FAQs)

Below are answers to common customer questions about Incoloy Alloy 800:

What Material is Incoloy Alloy 800?

Chemical detaitail	Content (%)
Nickel (Ni)	30.0 – 35.0
Iron (Fe)	Balance
Chromium (Cr)	19.0 – 23.0
Carbon (C)	≤ 0.10
Aluminum (Al)	0.15 – 0.60
Titanium (Ti)	0.15 – 0.60
Manganese (Mn)	≤ 1.50
Silicon (Si)	≤ 1.00
Sulfur (S)	≤ 0.015

Incoloy Alloy 800 isA nickel-iron-chromium alloy for high-temp use.

What is Alloy 800 Used For?

Alloy 800 is widely used in high-temperature, high-stress, and corrosive industrial environments, especially where thermal stability is critical.

Main Applications:

Heat exchangers and steam generator tubing (nuclear and fossil fuel)
Furnace components, trays, and baskets
Ethylene cracking furnaces
Petrochemical reformers and re-heaters
Superheaters in power plants
Chemical and food processing

Is Alloy 800 Corrosion Resistant?

Yes, Alloy 800 has excellent corrosion resistance, particularly in the following:

Oxidizing environments(e.g. air, flue gases)
Carburizing atmospheres(e.g. petrochemical heaters)
High-temperature chloride stress corrosion(moderate)
Aqueous environments(moderate to good)

However, for highly acidic conditions (like reducing acids or chlorides at room temp), alloys such as Inconel 625 or Hastelloy C276 perform better.

Alloy 800 vs 800H vs 800HT

Property	Alloy 800	Alloy 800H	Alloy 800HT
UNS	N08800	N08810	N08811
Carbon Content	≤ 0.10%	0.05–0.10%	0.06–0.10%
Grain Size Control	Not controlled	Controlled (ASTM 5 or coarser)	Controlled (ASTM 5 or coarser)
Creep Strength	Standard	Improved	Highest among the three
Annealing Temp	~980°C	1120–1175°C	1120–1175°C
Application Temp Limit	Up to 600°C	Up to 800–900°C	Up to 950–1000°C

800Hand 800HT are modified versions of Alloy 800 for better creep and rupture strength at high temperatures.

What is the Price of Alloy 800?

Prices vary based on form (tube, plate, bar), quantity, and supplier. Typical price range (as of mid-2025):

Product Form	Estimated Price (USD/kg)	Notes
Pipe & Tube	$35 – $50/kg	Seamless costs more
Plate / Sheet	$30 – $45/kg	Based on thickness
Round Bar	$32 – $48/kg	Higher if special tolerance

Bulk orders, origin (e.g., US, EU, China), and quality certificates (ASTM/ASME compliance) affect pricing significantly.

What is the Difference Between INCOLOY 800 and Alloy 800?

Aspect	Incoloy 800	Alloy 800
Branding	Trademarked name by Special Metals	Generic name used globally
Material Specification	Identical	Identical
Standards	ASTM B407, B408, B409, ASME SB	Same
Composition	Same	Same
Market Use	Branded in critical applications	Generic usage

Why Choose Gangsteel for Incoloy Alloy 800?

Quality Assurance: All products meet ASTM, ASME, and international standards, with material test certificates provided.
Fast Delivery: Standard orders delivered within 7-15 days, with expedited options available.
Customization: Plates, sheets, pipes, and forgings tailored to your specifications.
Global Reach: Serving industries worldwide with reliable supply and technical support.

For inquiries or to request a quote for Incoloy Alloy 800, contact Gangsteel.

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