ASTM B167 Inconel 600 Welded Pipe, 8" SCH 100
Typical chemical composition and mechanical properties of ASTM B167 Inconel 600 welded pipe:
| Element | Content (%) |
|---|---|
| Nickel (Ni) | 72.0 min |
| Chromium (Cr) | 14.0 - 17.0 |
| Iron (Fe) | 6.0 - 10.0 |
| Carbon (C) | 0.15 max |
| Manganese (Mn) | 1.0 max |
| Silicon (Si) | 0.50 max |
| Sulfur (S) | 0.015 max |
| Copper (Cu) | 0.50 max |
| Mechanical Properties | Typical Values |
|---|---|
| Tensile Strength | 80 ksi (550 MPa) min |
| Yield Strength | 30 ksi (205 MPa) min |
| Elongation | 30% min |
| Hardness | 150 HRB max |
The production process of ASTM B167 Inconel 600 welded pipe typically involves the following steps:
Material Selection: Choosing Inconel 600 alloy plates or coils that meet the chemical composition and mechanical property requirements specified in ASTM B167.
Pipe Formation: Processing the selected material into pipes of desired dimensions and shapes, such as round or square, through methods like hot or cold rolling.
Welding: Joining the edges of the formed pipes using welding techniques such as TIG (Tungsten Inert Gas) welding or MIG (Metal Inert Gas) welding to create continuous seams.
Heat Treatment: Subjecting the welded pipes to heat treatment processes like annealing to relieve stress and enhance mechanical properties.
Finishing: Cutting, sizing, and surface treatment to meet the dimensional requirements and achieve the desired surface finish.
The advantages of ASTM B167 Inconel 600 welded pipe include its excellent resistance to oxidation, corrosion, and high temperatures, making it suitable for use in various harsh environments such as chemical processing, aerospace, and marine applications. It also offers good mechanical properties and weldability.
However, some potential drawbacks may include its relatively high cost compared to other materials, limited availability in certain sizes or specifications, and challenges in machining and forming due to its high strength and hardness.
Common issues with Inconel 600 welded pipe may include defects in weld seams, dimensional inaccuracies, surface imperfections, and variations in mechanical properties. Regular inspections and quality control measures are essential to address these issues and ensure the integrity and reliability of the welded pipes.
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