Table of Contents
- Incoloy 800/800H/800HT Square Bars Overview
- Technical Specifications
- Mechanical Properties & Chemical Composition
- Types of Incoloy 800/800H/800HT Square Bars
- Key Advantages of UNS N08800 / UNS N08810 / UNS N08811 Square Bars
- Key Applications of Incoloy 800/800H/800HT Square Bars
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Incoloy 800/800H/800HT Square Bars Overview
Aurum Overseas is a trusted Incoloy 800/800H/800HT Square Bar Supplier stocking high-performance iron-nickel-chromium square stock. Engineered for thermal stability, our inventory resists oxidation, carburization, and sulfidation in extreme high-temperature environments.
As a certified Incoloy 800/800H/800HT Square Bar Exporter, we supply cold-drawn Incoloy 800 Bright Square Bars for precision machining and heavy Incoloy 800H Forged Square Bars for structural loads. All stock is available in standard lengths or custom cut-to-size pieces.
We export UNS N08800 / UNS N08810 / UNS N08811 Square Bar stock across the USA, Canada, Mexico, Germany, UK, France, Italy, Netherlands, Belgium, Spain, Poland, UAE, Saudi Arabia, Qatar, Kuwait, Oman, and Bahrain.
Technical Specifications
| Technical Parameter | Specification Details |
|---|---|
| Material Specifications | ASTM B408, ASME SB408, AMS 5766, BS 3076, EN 10095 |
| UNS Designations | UNS N08800 (800) / UNS N08810 (800H) / UNS N08811 (800HT) |
| Werkstoff Numbers | W.Nr. 1.4876 (800) / W.Nr. 1.4958 (800H) / W.Nr. 1.4959 (800HT) |
| Size Range (Square) | 6.0 mm x 6.0 mm to 250 mm x 250 mm (1/4" to 10" square) |
| Length Options | 1,000 mm to 6,000 mm, Custom Precision Cut-to-Length |
| Surface Finishes | Bright, Forged |
| Heat Treatment | Solution Annealed (800H/800HT), Mill Annealed (800) |
| Dimensional Tolerances | ASTM A484 / BS 970 / ISO h9, h10 square tolerances |
Mechanical Properties & Chemical Composition
Equivalent Standards
| Standard | Werkstoff Nr. | UNS | JIS | EN |
|---|---|---|---|---|
| Incoloy 800 | 1.4876 | N08800 | NCF 800 | X10NiCrAlTi32-20 |
| Incoloy 800H | 1.4958 / 1.4876 | N08810 | NCF 800H | X5NiCrAlTi31-20 |
| Incoloy 800HT | 1.4959 / 1.4876 | N08811 | NCF 800HT | X8NiCrAlTi32-21 |
Chemical Composition (%)
| Element | Incoloy 800 | Incoloy 800H | Incoloy 800HT |
|---|---|---|---|
| Iron (Fe) | 39.50 min | 39.50 min | 39.50 min |
| Nickel (Ni) | 30.00 – 35.00 | 30.00 – 35.00 | 30.00 – 35.00 |
| Chromium (Cr) | 19.00 – 23.00 | 19.00 – 23.00 | 19.00 – 23.00 |
| Carbon (C) | 0.10 max | 0.05 – 0.10 | 0.06 – 0.10 |
| Aluminum (Al) | 0.15 – 0.60 | 0.15 – 0.60 | 0.15 – 0.60 |
| Titanium (Ti) | 0.15 – 0.60 | 0.15 – 0.60 | 0.15 – 0.60 |
| Manganese (Mn) | 1.50 max | 1.50 max | 1.50 max |
| Silicon (Si) | 1.00 max | 1.00 max | 1.00 max |
| Copper (Cu) | 0.75 max | 0.75 max | 0.75 max |
| Sulfur (S) | 0.015 max | 0.015 max | 0.015 max |
Mechanical Properties
| Property Parameter | Value / Range |
|---|---|
| Density | 7.94 g/cm³ |
| Melting Point | 1385 °C (2525 °F) |
| Tensile Strength (Min) | 75,000 psi (520 MPa) |
| Yield Strength (0.2% Offset, Min) | 30,000 psi (205 MPa) |
| Elongation (Min) | 30% |
Types of Incoloy 800/800H/800HT Square Bars
Aurum Overseas supplies Incoloy 800/800H/800HT square bars in precision bright and heavy forged conditions for high-temperature and corrosive industrial applications.
Incoloy 800 Bright Square Bars
Incoloy 800 Forged Square Bars
Key Advantages of UNS N08800 / UNS N08810 / UNS N08811 Square Bars
High-Temperature Creep Resistance
Controlled carbon, titanium, and aluminum content in 800H and 800HT provides long-term strength under continuous heat above 600 °C.
Carburization & Oxidation Protection
High nickel (30-35%) and chromium (19-23%) levels shield the alloy against internal carburization and high-heat scaling.
Corrosion & Stress Cracking Resistance
Resists general corrosion, organic acids, and stress corrosion cracking in high-purity water and chemical environments.
Thermal & Microstructural Stability
Retains metallurgical strength and flexibility without becoming brittle after long exposure to extreme heat.
Key Applications of Incoloy 800/800H/800HT Square Bars
| Industry Sector | Component Type | Primary Performance Advantage |
|---|---|---|
| Petrochemical Processing | Ethylene furnace pigtails, square header frames | Resists high-temperature carburization and severe thermal cracking cycles. |
| Heat Treating Equipment | Furnace hearth rails, square basket supports | Retains high creep strength and structural shape under continuous high-temperature loads. |
| Power Generation | Superheater tube supports, square tie rods | Resists thermal fatigue and high-temperature steam oxidation in boiler sections. |
| Nuclear Industry | Steam generator structural components | High resistance to primary water stress corrosion cracking and thermal degradation. |
Quality Testing & Inspection
As a quality-driven Incoloy 800/800H/800HT Square Bar Supplier, every shipment undergoes strict inspection:
- Mill Test Certificates: Full compliance with EN 10204 3.1 certification documenting heat numbers, grain sizes, and chemical analysis.
- Mechanical & Hardness Testing: Batch testing confirms tensile strength, yield strength, elongation, and hardness levels.
- Non-Destructive Testing (NDT): 100% ultrasonic and dye-penetrant testing guarantees internal soundness across all square profiles.
Global Export Markets
As an established Incoloy 800/800H/800HT Square Bar Exporter, Aurum Overseas supplies fully certified UNS N08800 / UNS N08810 / UNS N08811 Square Bars to global energy and thermal engineering centers:
USA
Canada
Mexico
Germany
United Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
We supply UNS N08800 / UNS N08810 / UNS N08811 Square Bar stock strictly in Bright (cold drawn) and Forged (hot forged) finishes.
Their chemistry prevents high-heat deformation, creep failure, and carburization during continuous furnace operations.
Yes. They offer good weldability using matching filler metals (like Inconel 82 or 182) without requiring post-weld heat treatment.
Yes, as a certified Incoloy 800/800H/800HT Square Bar Exporter, all deliveries include full EN 10204 3.1 mill test certificates.
Contact Aurum Overseas
Aurum Overseas supplies certified Incoloy 800, 800H, and 800HT square bars for petrochemical plants, heat-treating furnaces, and power generation installations.
Contact our sales department for stock availability, custom cutting services, or prompt pricing: