Alloy 800H,Incoloy 800H Wire,N08810,E FORU

British Specs:BS 3072 BS 3073 BS 3074 BS 3075 BS 3076 NA15，American Specs:AMS 5766 Bar and Forgings AMS 5871 Sheet, Strip and Plate ASTM B408 ASTM B564 ASTM A240 ASTM A480，German Specs:WS 1.4876 WS 1.4958 WS 1.4959

**Technical Datasheet: Alloy 800H / Incoloy 800H Wire (UNS N08810)** --- ### **1.0 Product Overview** **Alloy 800H Wire** (commercially known as **Incoloy 800H Wire**, UNS **N08810**) is a nickel-iron-chromium superalloy wire product engineered for high-temperature applications requiring exceptional creep resistance, oxidation stability, and fabricability. The "H" designation signifies controlled carbon content (0.05–0.10%) and optimized aluminum/titanium ratios, delivering superior performance in extreme thermal environments (up to 815°C/1500°F). Available in spools, coils, or straight lengths, this wire is ideal for welding, weaving, and structural components. --- ### **2.0 Chemical Composition (wt%)** | Element | Content (ASTM B408/ASME SB-408) | Role | |---------|----------------------------------|------| | Ni | 30.0–35.0 | Austenitic matrix stability, oxidation/carburization resistance | | Cr | 19.0–23.0 | High-temperature oxidation and sulfidation resistance | | Fe | ≥39.5 | Base element | | C | 0.05–0.10 | **Key for "H" grade**; enhances creep strength via carbide formation | | Al | 0.15–0.60 | Forms protective oxide scale; improves oxidation resistance | | Ti | 0.15–0.60 | Stabilization and precipitation strengthening | | Mn | ≤1.50 | Improves hot workability | | Si | ≤1.00 | Enhances oxidation/carburization resistance | | S | ≤0.015 | Minimized to avoid hot shortness | | Cu | ≤0.75 | — | *Note: Al + Ti ≥ 0.85% for UNS N08810.* --- ### **3.0 Physical Properties** | Property | Value | Condition | |----------|-------|-----------| | Density | 8.03 g/cm³ (0.29 lb/in³) | RT | | Melting Range | 1354–1384°C (2470–2520°F) | — | | Specific Heat | 460 J/kg·K (0.11 Btu/lb·°F) | 21°C (70°F) | | Thermal Conductivity | 15.6 W/m·K (9.0 Btu·in/hr·ft²·°F) | 21°C (70°F) | | Thermal Expansion | 16.6 × 10⁻⁶ /K | 20–650°C | | Electrical Resistivity | 116 μΩ·cm (45.8 μΩ·in) | 21°C (70°F) | | Modulus of Elasticity | 201 GPa (29.1 × 10⁶ psi) | RT | | Magnetic Permeability | <1.05 | Essentially non-magnetic | --- ### **4.0 Mechanical Properties** **Typical Room-Temperature Properties (Annealed Condition)** - **Tensile Strength:** 450–620 MPa (65–90 ksi) - **Yield Strength (0.2% Offset):** 170–380 MPa (25–55 ksi) - **Elongation:** 30–40% (in 50 mm) - **Hardness:** 70–90 HRB **High-Temperature Performance** - **Max Service Temperature:** 815°C (1500°F) continuous - **Creep Strength:** Excellent under sustained loads at high temperatures - **Stress Rupture:** Superior performance in prolonged high-temperature service --- ### **5.0 International Standards** | Standard Type | Number | Description | |--------------|--------|-------------| | UNS | N08810 | Unified Numbering System | | ASTM | B408 | Nickel-Iron-Chromium Alloy Rod and Bar (includes wire) | | ASME | SB-408 | Boiler and Pressure Vessel Code | | AWS | A5.14 | ERNiCrFe-8 (welding wire specification) | | EN/DIN | 1.4876 | X8NiCrAlTi32-21 | | ISO | 6207 | Nickel alloy wire specifications | --- ### **6.0 Product Forms & Dimensions** **Wire Types** - **Welding Wire:** ERNiCrFe-8, diameters 0.8–4.0 mm (0.030–0.156 in) - **Fabrication Wire:** Diameters 0.5–12.0 mm (0.020–0.472 in) - **Spooled Wire:** Standard spool weights 5–250 kg - **Straight Lengths:** Cut to custom sizes **Surface Finish** - Bright (plain) - Annealed and descaled - Coated (e.g., copper-coated for welding) --- ### **7.0 Applications** **Welding & Fabrication** - Cladding and overlay of carbon steel components - Repair of alloy 800H/800HT equipment - Fabrication of reformer tubes and furnace parts **Industrial Manufacturing** - High-temperature mesh and weaving - Fasteners (bolts, nuts, pins) - Heating element support wires - Thermocouple attachment wires **Nuclear & Power Generation** - Core component fasteners - Heat exchanger wiring - Instrumentation and sensor mounts **Chemical Processing** - Catalyst support grids - High-temperature filter elements - Reactor internals and brackets --- ### **8.0 Fabrication Notes** - **Welding:** Use GTAW/TIG or GMAW/MIG with ERNiCrFe-8 filler. Preheating not required; post-weld annealing recommended for critical applications. - **Forming:** Excellent cold and hot workability. Anneal between severe forming steps. - **Machining:** Use slow speeds, positive rake angles, and coolant for optimal results. - **Heat Treatment:** Solution anneal at 980–1065°C (1800–1950°F) followed by rapid cooling. --- ### **9.0 Quality Assurance** - Certification to EN 10204 3.1/3.2 - Dimensional compliance with ASTM B408 - Chemical and mechanical property testing per heat/lot - Surface quality inspection and nondestructive testing as required --- ### **10.0 Why Choose Alloy 800H Wire?** - **High-Temperature Strength:** Excellent creep and stress rupture properties up to 815°C. - **Corrosion Resistance:** Resists oxidation, carburization, and sulfidation. - **Versatility:** Suitable for welding, weaving, fasteners, and structural components. - **Non-Magnetic:** Ideal for sensitive electronic and nuclear applications. --- **Contact Us** For custom wire sizes, technical support, or certification details, reach out to our engineering team.

Packing of 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 1909 gallon liquid totes Special package is available on request.