N08810 Stud Bolts Incoloy 800-800H-800HT Bolts
UNS N08810 (Incoloy 800H), Werkstoff Nr. 1.4958 which is an austenitic, heat resistant iron-nickel-chromium alloy with controlled levels of carbon, aluminum and titanium.
UNS N08810 Stud Bolts, also known as Incoloy 800H stud bolts, are high-performance fasteners engineered for applications requiring exceptional strength and resistance to high-temperature corrosion.
UNS N08810 Stud Bolts are made of ASTM B408 N08810 Round bar
ASTM B408 is the Standard Specification for Nickel-Iron-Chromium Alloy Rod and Bar
This specification covers UNS N08120, UNS N08800, UNS N08810, UNS N08811*, and UNS N08890 in the forms of hot – worked and cold – worked rod and bar.
Alloy UNS N08800 is typically used at service temperatures up to and including 1100°F (593°C). In contrast, Alloys UNS N08120, UNS N08810, UNS N08811, and UNS N08890 are usually employed at service temperatures above 1100°F (593°C), where resistance to creep and rupture is necessary. These alloys are annealed to achieve a controlled grain size, which ensures optimum properties within this temperature range.
N08810 Stud Bolts Specifications
- Material Designation: UNS N08810 (Incoloy 800H), Werkstoff Nr. 1.4958
- Standards Compliance: ASTM B564, ASTM B408, ASME SB564, ASME SB408
- Thread Types: UNC, UNF, Metric Coarse & Fine
- Available Sizes: M12 to M100; 1/2″ to 4″
- Thread Configurations: Fully Threaded, Double Ended, Tap End, Reduced Shank
- Certification: EN 10204 3.1 or 3.2
UNS N08810 Chemical Composition (%)
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 30.0 – 35.0 |
| Chromium (Cr) | 19.0 – 23.0 |
| Iron (Fe) | Balance |
| Carbon (C) | 0.05 – 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 |
| Copper (Cu) | ≤ 0.75 |
UNS N08810 Fasteners Mechanical Property
| Alloy | Condition | Tensile Strength, min, psi (MPa) | Yield Strength (0.2% offset, min), psi (MPa) | Elongation in 2 in. or 50 mm (or 4D), min, % |
| UNS N08810 and UNS N08811 | Cold-worked and hot-worked, annealed | 65 000 (450) | 25 000 (170) | 30 |
Why N08810 Fasteners?
Alloy 800 H (1.4876/N08810) is characterized by:
- good creep rupture strength at temperatures above 600 °C (1,112 °F)
- good resistance in oxidizing, nitriding and carburizing conditions
- metallurgical stability in long-term use at high temperatures
High-Temperature Performance
Incoloy 800H stud bolts are designed for prolonged exposure to elevated temperatures, maintaining stability and strength. They are suitable for service temperatures above 1100°F (593°C), where resistance to creep and rupture is required. The alloy is annealed to develop controlled grain size for optimum properties in this temperature range
Ordering Information
When you send the RFQ foUNS N08810 stud bolts, please provide:
- Size & Length: e.g., M16 x 100 mm
- Thread Type: e.g., UNC, UNF, Metric
- Thread Configuration: Double Ended, Fully Threaded, etc.
- Standard Compliance: ASTM B564 / ASME SB564/ASTM B408
- MTC as per EN 10204 3.1 or 3.2
