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Hot Rolled & Cold Drawn Incoloy 800H Round Bar UNS N08810 Nickel Alloy Bright Bars with Diameter 5-350mm and Corrosion Resistance
| Model NO. | 800H | Shape | Round |
|---|---|---|---|
| Technique | Hot Rolled | Surface Treatment | Polished |
| Length | Custom Cutting Any Length As Request | Specification | 5 - 350mm |
| Density | 8.0 G/cm³ | Melting Point | 1350-1400°C |
| Tensile Strength | 450 N/mm² (min) | Yield Strength | 180 N/mm² (min) |
| Elongation | 35% (min) | Oxidation Resistance | Up To 1000°C |
| Diameter Range | 10-200mm (standard) | Dimensional Tolerance | ±0.5mm |
| Hardness | 150-180 HB | ||
| Highlight | Hot Rolled Incoloy 800H Round Bar,Diameter 5-350mm Nickel Alloy Bar,Corrosion Resistant Bright Bars |
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| Standard | AISI, ASTM, BS, DIN, GB, JIS |
| Grade | Monel series: 400 K500 Inconel series: 600 601 625 718 725 Incoloy series: 800 800H 825 925 Hastelloy series: B,B2,B3,C,C-276,C-4,C-22 Pure: Ni200, Ni201 |
| Specifications |
Round bar: Diameter: 4-300mm Flat bar: Thickness: 1.0-100mm, Width: 1-1500mm Square bar: Size: 4*4-100*100mm Length: 2m, 5.8m, 6m, or as required Surface: Black, peeled, polishing, bright, sand blast, hair line, etc. |
| Price Term | Ex-work, FOB, CFR, CIF, etc. |
| Delivery Time | Standard size is in stock, prompt delivery or as order's quantity |
UNS N08810, commonly designated as Incoloy 800H, is a premium nickel-iron-chromium alloy round bar engineered for exceptional performance in high-temperature and corrosive environments. Available in hot rolled and cold drawn (bright bar) variants, this alloy combines robust mechanical strength, superior corrosion resistance, and structural stability—making it a cornerstone material in industries demanding reliability under extreme conditions.
The exceptional performance of UNS N08810 stems from its precisely balanced chemical composition and austenitic face-centered cubic lattice structure. Its controlled carbon content (0.05-0.10%) and optimized aluminum-titanium ratio enhance creep resistance and structural stability at elevated temperatures.
| Element | Minimum | Maximum | Role |
|---|---|---|---|
| Nickel (Ni) | 30.0 | 35.0 | Enhances stress corrosion cracking resistance |
| Chromium (Cr) | 19.0 | 23.0 | Provides oxidation and corrosion resistance |
| Iron (Fe) | Balance | Balance | Base metal ensuring structural integrity |
| Carbon (C) | 0.05 | 0.10 | Improves high-temperature creep strength |
| Manganese (Mn) | - | 1.50 | Aids in hot workability |
| Silicon (Si) | - | 1.00 | Supports oxide film formation |
| Copper (Cu) | - | 0.75 | Minimized to avoid compatibility issues |
| Sulfur (S) | - | 0.015 | Reduced to prevent brittleness |
| Aluminum (Al) | 0.15 | 0.60 | Enhances oxidation resistance |
| Titanium (Ti) | 0.15 | 0.60 | Stabilizes austenitic structure |
| Property | Specification | Notes |
|---|---|---|
| Density | 8.0 g/cm³ | Consistent across variants |
| Melting Point | 1350-1400°C | Suitable for high-temperature service |
| Tensile Strength (Rm) | 450 N/mm² (min) | Maintained at 600°C+ |
| Yield Strength (Rp0.2) | 180 N/mm² (min) | Ensures structural stability |
| Elongation (A5%) | 35% (min) | Enables formability |
| Oxidation Resistance | Up to 1000°C | Protective chromium oxide layer |
| Feature | Hot Rolled UNS N08810 Round Bar | Cold Drawn (Bright Bar) UNS N08810 |
|---|---|---|
| Surface Finish | Black, scaled, or pickled; matte texture | Bright, smooth, mirror-like (Ra ≤ 0.8μm) |
| Diameter Range | 10-200mm (standard); larger sizes on request | 3-100mm; tighter tolerances |
| Dimensional Tolerance | ±0.5mm | ±0.1mm |
| Mechanical Properties | Moderate hardness; excellent ductility | Higher hardness (150-180 HB); enhanced tensile strength |
| Key Advantages | Cost-effective; ideal for heavy machining | Ready for direct assembly; reduces post-processing |
| Typical Applications | Furnace components, structural supports | Precision shafts, valve stems, instrument parts |
- Hot Working: Processable at 871-1232°C for forging, bending, and shaping
- Cold Working: Cold drawing enhances surface finish and dimensional accuracy
- Welding: Compatible with standard stainless steel welding techniques
- Machining: Machinable with carbide tools; coolant use recommended
- Chemical & Petrochemical: Sulfur-containing atmosphere equipment, condensers, and tubes
- Power Generation: Heat exchanger tubes, steam generator components, and gas turbine parts
- Nuclear Industry: Condenser systems and reactor auxiliary piping
- Manufacturing: Furnace fixtures, carburizing equipment, and heating element sheathing
Our UNS N08810 round bars adhere to global industry standards including ASTM B408 and ASME SB408. Each batch undergoes rigorous testing:
- Chemical analysis via X-ray fluorescence (XRF)
- Mechanical testing (tensile, yield, elongation)
- Non-destructive testing (ultrasonic for internal defects)
- Dimensional inspection with precision calipers
Compared to similar alloys like UNS N08811 (Incoloy 800HT), UNS N08810 offers a cost-effective balance of performance for applications below 700°C. Its resistance to sulfur-containing atmospheres makes it preferable to 304 stainless steel in chemical processing applications.
Whether your project requires the cost-efficiency of hot rolled bars or the precision of cold drawn bright bars, UNS N08810 (Incoloy 800H) round bars provide reliable performance in challenging environments.