ASTM B407 Pipes
SSM supplies astm b407 nickel-iron-chromium alloy seamless pipes
ASTM B407 nickel-iron-chromium alloy seamless pipes
SSM offers different types of pipes made from Alloy 800 and Alloy 800H. These alloys are known for their high strength at elevated temperatures and their ability to resist oxidation and carburization. They are extensively utilized in industries such as petrochemical, chemical processing, power generation, and industrial heating. Typical uses include heat exchangers, furnace components, and piping systems for high-temperature industrial processes. The following information provides detailed product specifications.
ASTM B407 nickel-iron-chromium alloy seamless pipes supplier, SSM provides product parameters as shown in the following table:
| Items | Parameters |
| OD | NPS 1/8″ – NPS 30″ |
| WT | Common wall thickness specifications include SCH 10, SCH 20, SCH 40, SCH 80, SCH 160, XXS (extra strong wall), etc. |
| Length | 20 feet (6 meters) or 40 feet (12 meters), according to customer requirements. |
| Grade | Common Grades: Alloy 800 and Alloy 800H |
| Standards | ASTM B407 / ASME B36.19 M |
| End Finish | Plain ends / Beveled Ends / Threaded Ends |
| Surface Condition | Pickled / Passivated |
Chemical Composition & Mechanical Properties
The typical chemical composition and mechanical properties of ASTM B407 alloys, specifically Alloy 800 and Alloy 800H.
| Chemical Composition | Alloy 800 (Incoloy 800) | Alloy 800H (Incoloy 800H) |
| Nickel (Ni) | 30.0 – 35.0% | 30.0 – 35.0% |
| Chromium (Cr) | 19.0 – 23.0% | 19.0 – 23.0% |
| Iron (Fe) | 39.5% min | 39.5% min |
| Carbon (C) | 0.10% max | 0.05 – 0.10% |
| Aluminum (Al) | 0.15 – 0.60% | 0.15 – 0.60% |
| Titanium (Ti) | 0.15 – 0.60% | 0.15 – 0.60% |
| Copper (Cu) | 0.75% max | 0.75% max |
The mechanical properties of each grade also differ:
| Mechanical Properties | Alloy 800 (Incoloy 800) | Alloy 800H (Incoloy 800H) |
| Tensile Strength | 600 MPa (87 ksi) min | 600 MPa (87 ksi) min |
| Yield Strength (0.2% offset) | 300 MPa (43.5 ksi) min | 415 MPa (60 ksi) min |
| Elongation (% in 50mm) | 30% min | 30% min |
Manufacturing & Tolerance Requirements
Manufacturing Methods
Seamless Process: Pipes shall be manufactured using either hot-working or cold-working methods, followed by annealing as required.
Tolerance Requirements
| Permitted Variations in Wall Thickness | ||
| Tolerance,%from Nominal | ||
| NPS Designator | Over | Unders |
| 1/8 %to 2%incl, all t/D ratios | 20 | 12.5 |
| 3 to 18 incl., t/D up to 5% incl. | 22.5 | 12.5 |
| 3 to 18 incl., t/D>5% incl. | 15 | 12.5 |
| 20 and larger,welded,all t/D ratios | 17.5 | 12.5 |
| 20 and larger,seamless, t/D up to 5%incl. | 22.5 | 12.5 |
| 20 and larger,seamless, t/D>5% | 15 | 12.5 |
where: t =Nominal Wall ThicknessD =Ordered Outside Diameter
Lengths
The length of the pipes shall be as specified in the purchase order. Common lengths are single random (17-24 feet) and double random (38-40 feet), but custom lengths can also be ordered.
Pipes may also be supplied in cut lengths with a permissible variation of +1/8 inch (3.2 mm) and -0.
Advantages and Disadvantages of ASTM B407
Advantages:
The ASTM B407 specification provides significant advantages in high temperature and corrosion resistance, making it ideal for demanding industrial applications.
Disadvantages:
However, potential drawbacks include higher costs and considerations related to weldability and material selection. These should be carefully evaluated based on specific project needs and operational conditions.
Applications of ASTM B407 Pipes
- Heat Exchangers
- Furnace Components
- Chemical Processing
- Power Generation
- Oil and Gas Industry
- Aerospace and Defense
- Desalination Plants
- Food and Pharmaceutical Industries
FAQ
ASTM B407 alloys exhibit good resistance to oxidation, carburization, and other forms of high-temperature corrosion, making them suitable for use in aggressive environments.
Weldability of ASTM B407 alloys depends on the specific grade and conditions. Proper welding procedures and expertise are required to maintain the integrity and corrosion resistance of the pipes.
Manufacturers typically provide certifications stating compliance with ASTM B407 specifications, including chemical composition, mechanical properties, and dimensional tolerances.
Related Products
