INCOLOY 20 is a nickel-chromium-iron alloy with excellent corrosion resistance and high temperature resistance, which is described in detail below.
1. Definition
INCOLOY 20 is a nickel-chromium-iron alloy, an alloy composed of nickel, chromium, iron and other elements, which has excellent corrosion resistance and high temperature resistance.
2. Chemical composition
The chemical composition of INCOLOY 20 is as follows:
Nickel (Ni): 32.0-38.0%
Chromium (Cr): 19.0-21.0%
Iron (Fe): 39.5-47.5%
Copper (Cu): 0.75% max
Carbon (C): 0.05% max
Manganese (Mn): 1.00% max
Silicon (Si): 0.35% max
Phosphorus (P): 0.02% max
Sulfur (S): 0.015% max
3. Production standard
The production standards of INCOLOY 20 include ASTM B423, ASTM B163, AMS 5581, etc.
4. Corrosion resistance
INCOLOY 20 has excellent corrosion resistance and performs well in a variety of corrosive media, such as acidic media, alkaline media, salt water, etc. Especially in strong acid environments such as sulfuric acid and hydrochloric acid, its corrosion resistance performance is more outstanding.
5. High temperature resistance
INCOLOY 20 has excellent high temperature resistance and can work at high temperature for a long time, and the maximum working temperature can reach 980°C.
6. Typical application range
INCOLOY 20 is widely used in petroleum, chemical industry, aviation, aerospace, nuclear industry and other fields, such as oil refining units, chemical reactors, natural gas processing equipment, aero engines, rocket engines, nuclear reactors, etc.
7. Thermal processing
INCOLOY 20 is easy to process at high temperature, and can be hot-processed by forging, hot rolling, hot extrusion, etc. to prepare parts of different shapes.
Eight, cold processing
INCOLOY 20 performs well in cold working, and can be cold worked by cold drawing, cold rolling, etc. to prepare parts of different shapes.
Nine, heat treatment
INCOLOY 20 can be heat treated by annealing, solid solution, aging, etc. to improve the mechanical properties and corrosion resistance of the material.
10. Machining
INCOLOY 20 can be machined by drilling, milling, turning, cutting, etc., but care needs to be taken to avoid excessive heating and excessive cutting.
11. Welding
INCOLOY 20 can be welded by TIG, MIG, SMAW, etc. It is necessary to pay attention to the selection of appropriate welding materials and welding processes to ensure the quality and performance of welded joints.
12. Recommended welding materials
It is recommended to use ERNiCrMo-3 welding wire for welding.
Thirteen, material specific gravity
INCOLOY 20 has a specific gravity of 8.1 g/cm³.
Fourteen, mechanical properties
The mechanical properties of INCOLOY 20 are as follows:
Tensile strength: ≥690 MPa
Yield strength: ≥310 MPa
Elongation: ≥45%
Hardness: ≤HB200
15. Range of available products
INCOLOY 20 is available in a range of products including pipes, plates, bars, flanges, fittings, etc. In the process of production and sales, we need to pay attention to quality control, delivery time management, customer service and other aspects to meet the needs of customers.
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Post time: Aug-26-2023
