| Specifications | : | ASTM B 408 ASME SB 408 |
| Standard | : | DIN, ASTM, BS and all International Standards |
| Length | : | 3 mm to 200 mm |
| Size | : | M3 – M56 | 3/6″ to 2″ | Custom Sizes |
| Type | : | Hex Head Bolts, Square Bolts, U bolts, Eye bolts, T bolt, Hex Bolt, Lag Bolts, Counter sunk Bolts, Hex Head nuts, Square nuts, Lock nuts, Eye nuts, wing nuts, T nuts, Panel Nuts, Coupling Nuts, Dome nuts, Acorn Nuts. |
| Grade | Tensile Strength (MPa) min | Yield Strength 0.2% Proof (MPa) min | Elongation (% in 50mm) min | Hardness | |
| Rockwell B (HR B) max | Brinell (HB) max | ||||
| 800-H-HT | Psi – 75,000 , MPa – 520 | Psi – 30,000 , MPa –205 | 30 | – | – |
| Grade | C | Mn | Si | Fe | S | Cr | Al-Ti | Ni | |
| 800 | min. | – | – | – | 39.5 | – | 19.0 | 0.15 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 0.60 | 35.0 | |
| 800H | min. | 0.05 | – | – | 39.5 | – | 19.0 | 0.15 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 0.60 | 35.0 | |
| 800HT | min. | 0.06 | – | – | 39.5 | – | 19.0 | 0.85/0.25 | 30.0 |
| max. | 0.1 | 1.5 | 1.0 | – | 0.015 | 23.0 | 1.20/0.60 | 35.0 | |
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We offer These Incoloy 800/800H/800HT Stud Bolts as per DIN, ISO, JIS or ANSI Standard.
High-temperature resistance: Incoloy 800 series stud bolts can withstand temperatures up to 1100°C (2000°F) with minimal loss of mechanical strength. This makes them suitable for heat exchangers, petrochemical processing, and other high-temperature areas.
Corrosion Resistance: These alloys exhibit exceptional corrosion resistance in oxidizing and reducing areas. They are particularly resistant to sulfuric environments, making them ideal for use in areas such as pharmaceutical plants.
Creep and Rupture Strength: The combination of nickel, chromium and iron in Incoloy 800 series alloys provides excellent creep and rupture strength at high temperatures. This ensures stud bolts’ system integrity even when exposed to the heat of increased mechanical stresses over time.
Excellent mechanical strength: The stud bolts of the Incoloy 800 series maintain excellent mechanical properties, including tensile strength, yield strength, and stiffness, over a wide range of temperatures. This ensures reliable operation and long-lasting durability in strenuous applications.
Easy to manufacture: These alloys can be manufactured in a variety of ways, including stud bolts, using traditional manufacturing processes such as hot forging and machining. This allows custom-sized stud bolts to be manufactured to meet the needs of specific applications.
Incoloy 800/800H/800HT Stud Bolts applications are as diverse as the industries they serve driven primarily by the aerospace, railway, construction and automotive industries with petrochemical, nuclear, medical, Oil & Gas, Chemical, Pharmaceutical, Food & Beverage, Nuclear, Thermal Power plants, Paper and Pulp, marine and mining, etc.
Petrochemical Industry: Stud bolts made of Incoloy 800 series alloys find extensive application in the petrochemical industry, especially in refineries and chemical process plants. They are used in reactors, heat exchangers, piping systems etc., where corrosive chemicals and heat-increased exposure are common
Power applications: Incoloy 800 series stud bolts are used in electrical equipment, conventional and nuclear, for applications such as boiler components, steam turbines, exhaust systems etc. These alloys can withstand the high temperatures and pressures encountered in power generation.
Aerospace: For aerospace applications requiring lightweight, high-strength materials to withstand extreme conditions, Incoloy 800 series alloys are used for stud bolts and other fasteners found in use on airborne components engines, gas turbines and propulsion systems.
Heat treatment: The excellent high-temperature properties of Incoloy 800 series alloys make them suitable for heat treatment equipment such as furnaces, annealing machines and heat exchangers. Stud bolts of these alloys are encountered with increased heat in such applications. They can also withstand thermal cycling.
Chemical applications: Studbolts made of Incoloy 800 series alloys are used in various chemical applications, including forming acids, alkalis and other corrosive substances. Their corrosion and oxidation resistance suit chemical plants’ vessels, reactors, and piping systems.
Understand the difference: Incoloy 800, 800H, and 800HT are variations of the same blend with slight differences in composition and properties. Incoloy 800H has a higher carbon content, while 800HT has higher creep-rupture properties. Determine the adjustment that best suits your needs based on factors such as temperature, pressure, and environmental factors.
Define application requirements: Define operating conditions such as temperature, pressure, corrosion resistance, and resistance to oxidation or sulfur-containing atmospheres. This will help you choose the right Incoloy stud bolts.
Refer to standards and specifications: To ensure compliance with performance and design requirements, refer to industry standards and specifications such as ASTM, ASME, and ANSI. These standards guide composition, devices, and design.
Consider corrosion resistance: Incoloy 800 series alloys are known for excellent corrosion resistance in a variety of environments, including acidic and high-temperature conditions. Check for specific corrosion challenges in your application and ensure the stud bolts you choose provide adequate energy.
Check mechanical properties: Check mechanical properties such as tensile strength, yield strength, and stiffness to ensure the stud bolts can withstand application loads and service conditions without failure.
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