Product Code : NI-NI20-CU-CU
Alloy 800,Incoloy 800,N08800is available in Bar (Round bar, Flat bar), Ribbon, Wire, Rods, Tube, Pipe, Foil, Plate, Sheet, Strip and Forging Stock.
### **Technical Datasheet: Alloy 800 (Incoloy 800, UNS N08800)**
**Overview**
Incoloy 800 (Alloy 800, UNS N08800) is a nickel-iron-chromium superalloy known for its excellent resistance to oxidation and carburization at high temperatures. This austenitic alloy maintains good strength and corrosion resistance in various corrosive environments, making it suitable for heat treatment equipment and chemical processing applications.
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### **Technical Datasheet: Alloy 800 (Incoloy 800, UNS N08800)**
**Overview**
Incoloy 800 (Alloy 800, UNS N08800) is a nickel-iron-chromium superalloy known for its excellent resistance to oxidation and carburization at high temperatures. This austenitic alloy maintains good strength and corrosion resistance in various corrosive environments, making it suitable for heat treatment equipment and chemical processing applications.
### **Technical Datasheet: Alloy 800 (Incoloy 800, UNS N08800)**
**Overview**
Incoloy 800 (Alloy 800, UNS N08800) is a nickel-iron-chromium superalloy known for its excellent resistance to oxidation and carburization at high temperatures. This austenitic alloy maintains good strength and corrosion resistance in various corrosive environments, making it suitable for heat treatment equipment and chemical processing applications.
**Key Characteristics**
- **Excellent resistance to oxidation and carburization**
- **Good strength at high temperatures**
- **Resistance to sulfur corrosion**
- **Stability in oxidizing and reducing atmospheres**
- **Good fabricability and weldability**
--- #### **1. Chemical Composition (Weight %)**
| Element | Composition (%) |
|---------|-----------------|
| **Nickel (Ni)** | 30.0-35.0 |
| **Chromium (Cr)** | 19.0-23.0 |
| **Iron (Fe)** | Balance |
| **Carbon (C)** | ≤0.10 |
| **Manganese (Mn)** | ≤1.50 |
| **Silicon (Si)** | ≤1.00 |
| **Copper (Cu)** | ≤0.75 |
| **Aluminum (Al)** | 0.15-0.60 |
| **Titanium (Ti)** | 0.15-0.60 |
| **Sulfur (S)** | ≤0.015 |
2. Physical Properties**
| Property | Value |
|----------|-------|
| **Density** | 7.94 g/cm³ |
| **Melting Range** | 1350-1400°C |
| **Thermal Conductivity** | 11.2 W/m·K |
| **Specific Heat** | 500 J/kg·K |
| **Coefficient of Thermal Expansion** | 14.4 μm/m·°C |
| **Modulus of Elasticity** | 195 GPa |
3. Mechanical Properties**
**Room Temperature:**
- **Tensile Strength**: 520-690 MPa
- **Yield Strength (0.2% Offset)**: 210-345 MPa
- **Elongation**: 30-45%
**Elevated Temperature (650°C):**
- **Tensile Strength**: ~380 MPa -
**Yield Strength**: ~200 MPa
4. International Standards**
| Product Form | Standard |
|--------------|----------|
| **Plate, Sheet, Strip** | ASTM B409 |
| **Bar & Forgings** | ASTM B408 |
| **Seamless Tubing** | ASTM B163, B407 |
| **Welding Products** | AWS A5.14 |
| **European Standard** | EN 10095 |
| **Unified Numbering** | UNS N08800 |
--- #### **5. Applications**
**Heat Treatment Industry:**
- Radiant tubes and furnace muffles
- Heat treatment baskets and fixtures
- Thermocouple protection tubes
- Roller hearth furnace rollers
**Chemical Processing:**
- Heat exchangers and condensers
- Process piping systems
- Catalyst support grids
- Pyrolysis tubes
**Power Generation:**
- Heat recovery steam generators
- Superheater and reheater tubes
- Nuclear steam generator tubing
**Other Applications:**
- Industrial heating elements
- Refining industry components
- Food processing equipment
--- **Summary**
Incoloy 800 (UNS N08800) is a versatile nickel-iron-chromium alloy that offers an optimal balance of high-temperature strength and corrosion resistance. Its excellent resistance to oxidation, carburization, and sulfur attack makes it particularly valuable for high-temperature applications in heat treatment furnaces and chemical processing equipment. The alloy's stable austenitic structure and good fabricability have established it as a reliable material choice across multiple industries, supported by comprehensive international standardization.
Packing of Incoloy 800 (UNS N08800)
Standard Packing:
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Solutions are packaged in polypropylene, plastic or glass jars up to palletized 1643 gallon liquid totes Special package is available on request.
