ASTM B407 Inconel 800, 800H, 800HT Nickel Iron Chromium Alloy Seamless Steel Tube for Heat Exchangers
Material
Inconel 800, 800H, and 800HT are nickel-iron-chromium alloys known for their excellent strength and resistance to oxidation and carburization at elevated temperatures. These alloys are commonly used in the production of seamless steel tubes for heat exchangers, where they provide superior performance in high-temperature environments.
Specification
ASTM B407 is the standard specification for seamless, cold-worked, and hot-finished nickel-iron-chromium alloy pipes and tubes. This specification covers the requirements for the chemical composition, mechanical properties, and dimensions of the tubes, ensuring they meet the necessary standards for industrial applications.
Key Features
- High Temperature Resistance: Inconel 800 series alloys maintain their strength and stability at high temperatures, making them ideal for heat exchangers.
- Corrosion Resistance: These alloys offer excellent resistance to oxidation and carburization.
- Durability: The alloys' robust nature ensures long service life in demanding environments.
- Versatility: Suitable for a wide range of applications, including petrochemical and power generation industries.
Chemical Composition
The chemical composition of Inconel 800, 800H, and 800HT is crucial for their performance. Below is a table presenting the typical composition:
| Element | Inconel 800 | Inconel 800H | Inconel 800HT |
| Nickel (Ni) | 30-35% | 30-35% | 30-35% |
| Chromium (Cr) | 19-23% | 19-23% | 19-23% |
| Iron (Fe) | 39.5% min | 39.5% min | 39.5% min |
| Carbon (C) | 0.10% max | 0.05-0.10% | 0.06-0.10% |
| Aluminum (Al) | 0.15-0.60% | 0.15-0.60% | 0.25-0.60% |
| Titanium (Ti) | 0.15-0.60% | 0.15-0.60% | 0.25-0.60% |
Mechanical Properties
The mechanical properties of these alloys are essential for their application in heat exchangers. The table below outlines the typical properties:
| Property | Inconel 800 | Inconel 800H | Inconel 800HT |
| Tensile Strength (MPa) | 450 min | 450 min | 450 min |
| Yield Strength (MPa) | 170 min | 170 min | 170 min |
| Elongation (%) | 30 min | 30 min | 30 min |
Steel Grade
The Inconel 800 series is classified under the nickel-iron-chromium alloy category, specifically designed to withstand high temperatures and corrosive environments. The grades 800, 800H, and 800HT differ mainly in their carbon content and annealing treatment, which affect their mechanical properties and suitability for different applications.
Application
Inconel 800 series alloys are widely used in various industries due to their high-temperature capabilities and corrosion resistance. Common applications include:
- Heat exchangers
- Process piping
- Chemical and petrochemical processing
- Power generation
- Nuclear steam generators
Possible Alternative Grades
While Inconel 800 series alloys are highly effective, alternative materials may be considered depending on specific requirements:
- Incoloy 825: Offers excellent resistance to reducing and oxidizing acids.
- Hastelloy C276: Known for its resistance to a wide range of corrosive environments.
- Stainless Steel 310: Provides good oxidation resistance and strength at high temperatures.
TORICH Group, an one-stop service provider of raw materials engaged in raw material production, R&D and
trade, has 30+ years of experience in the market, exported to 56 +countries, and won good reputation and
credibility among domestic and foreign customers.
The company's production plant covers an area of over 10,000 square meters, with an annual production
capacity of 50,000 tons of materials and a comprehensive trading and warehousing capacity of 100,000 tons, which can satisfy customers' personalized needs for raw materials in terms of diversity and timeliness.
The group holds shares in more than ten domestic production entities, whose main products include
seamless steel pipes ( carbon steel and stainless steel), welded pipes ( carbon steel and stainless steel), pipe fittings ( carbon steel and stainless steel), titanium (titanium tubes, titanium rods, titanium cakes, titanium plates, etc.), aluminum (aluminum tubes, aluminum rods, aluminum die casting, aluminum casting, CNC machining), and CNC deep processing of metal materials such as tubes, rods, and casting parts.
Over the past 30 years, the company has been gradually developing new technologies and materials to meet
the growing needs of customers and various diversified needs, exporting to more than 56 countries and still
increasing the number of exporting countries, aiming to help customers to solve the demand for raw materials, and to facilitate one-stop purchasing for customers.
Q: Are you trading company or manufacturer ?
A: manufacturer,also can do trading.
Q: How long is your delivery time?
A: Generally speaking,it is 10-15 days if the goods are in stock,or it is 30-40 days if the goods are not in stock, it is according to quantity.
Q: Do you provide samples? is it free or extra ?
A: Yes, we could offer the sample for free charge but need pay the cost of freight.
Q: What is your terms of payment ?
A: Payment<=2000USD, 100% in advance. Payment>=2000USD, 30% T/T in advance ,balance before shippment.
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