The implementation standards usually include the following aspects:
1.Chemical Composition Execution Standards: Chemical composition is usually performed according to ASTM standards, such as ASTM B409. These standards specify the range of alloying elements to ensure that the material has the desired properties and properties.
2.Mechanical properties are usually in accordance with ASTM standards, such as ASTM B407, ASTM B514, etc. These standards specify the tensile strength, yield strength, elongation and other mechanical properties of the material.
3.Heat treatment execution standard: For heat treatment of N08810, ASTM standards, such as ASTM B514, are usually referred to to to formulate heat treatment process conditions, parameters and technical requirements.
4.Product standards: For material products, such as plates, pipes, bars, etc., there are usually corresponding product standards to specify their size, allowable deviation, surface quality and other requirements, these standards may include ASTM, ASME, etc.
The chemical composition of N08810 material, also known as Incoloy 800H, typically includes a range of content of the following elements:
Nickel (Ni): 300-35.0%
Iron (Fe): 395% min
Chromium (CR): 190-23.0%
Aluminium (AL): 015-0.60%
Titanium(Ti): 015-0.60%
Carbon(c): 005-0.10% (maximum).
Manganese (mn): 15% max
Sulfur (s): 0015% max
Phosphorus (p): 0015% max
Silicon (Si): 10% max
Copper (cu): 075% max
The mechanical properties usually follow ASTM B407, ASTM B514 and other relevant standards, and the following are typical mechanical properties in general:
Yield Strength (Tensile Strength): min 205 MPa (30,000 psi).
Tensile strength: min 450 MPa (65,000 psi).
Elongation: min 30%.
Heat treatment is often used to improve its high-temperature strength and creep resistance.
Common heat treatment methods include annealing, solution treatment, and aging treatment. Annealing is the process of slowly cooling the material after heating it and holding it for a certain period of time to eliminate internal stresses and improve plasticity and toughness. Solution treatment is the process of heating the material to a high-temperature area, dissolving the inhomogeneous phase in the solid solution, and then fixing this homogeneous structure by rapid cooling. Aging treatment is to heat the material again to a certain temperature and hold it for a period of time after solution treatment to form and stabilize the desired phase to further improve the performance of the material.
The usual recommendation is to first solve the material, heat the material to a temperature range of 1000-1150°C, and then cool it rapidly with water or air cooling. This can then be aged, where the material is reheated to a temperature range of 650-760°C, kept warm for about 16-24 hours, and then quickly cooled again.
Widely used in the following fields:
1.Petrochemical industry: It can be used for equipment and components such as cracking furnace pipelines, petroleum refining equipment, oil refining furnace pipelines, petrochemical reactors and other equipment and components in high temperature, high pressure and corrosive environments.
2.Nuclear power industry: It is suitable for nuclear reactor pressure vessels, fuel cladding, control rods, nuclear reactor cooling systems and other nuclear equipment components in nuclear power plants.
3.Heat treatment equipment: heat-resistant parts used in high-temperature stoves, heat treatment furnaces, tempering furnaces, annealing furnaces and other high-temperature heating equipment.
4.Chemical industry: suitable for chemical process equipment rich in oxidizing gas and high temperature and strong corrosive environment, such as oxidation reactors, furnace pipes, etc.
5.Heat exchangers and heaters: used in the manufacture of high-temperature heat exchangers, heaters and heat exchange equipment, such as furnace tubes, furnace spoke tubes, etc.
6.Other areas: It can also be used in production and storage equipment for oil, natural gas, and chemical products, as well as in hot air flow systems, high-temperature stoves, and industrial furnace internals.
It should be noted that in specific applications, the selection of N08810 material should comprehensively consider the temperature, pressure, corrosion properties and other factors of the working environment to ensure that the performance and durability of the material can meet the engineering requirements.