ASTM B673 N08925 N08354 N08926 Welded Steel Tube Nickel Iron Chromium Molybdenum Welded Pipe for General Purpose
Material
The ASTM B673 specification covers welded steel tubes made from nickel, iron, chromium, and molybdenum alloys. These materials are specifically designed to provide excellent corrosion resistance and mechanical properties, making them suitable for various industrial applications.
Specification
The specification outlines the requirements for the manufacture of welded pipes, including dimensions, tolerances, and testing methods. The pipes are typically used in environments where resistance to corrosion and high temperatures is critical.
Key Features
- Corrosion Resistance: Excellent resistance to pitting and crevice corrosion.
- High Strength: Capable of withstanding high pressures and temperatures.
- Weldability: Designed for easy welding and fabrication.
- Durability: Long service life in harsh environments.
Chemical Composition
| Alloy Grade | Ni (%) | Cr (%) | Mo (%) | Fe (%) | Other Elements |
| N08925 | 40.0 | 20.0 | 3.0 | Balance | Cu, C, Si |
| N08354 | 30.0 | 20.0 | 4.0 | Balance | C, Si |
| N08926 | 35.0 | 20.0 | 6.0 | Balance | C, Si |
Mechanical Properties
| Property | N08925 | N08354 | N08926 |
| Yield Strength (MPa) | 310 | 275 | 310 |
| Tensile Strength (MPa) | 620 | 550 | 620 |
| Elongation (%) | 40 | 35 | 40 |
| Hardness (HB) | 200 | 190 | 200 |
Steel Grade
The primary steel grades covered under ASTM B673 include:
These grades are selected based on their specific chemical compositions and mechanical properties, tailored for different applications.
Application
The welded pipes produced under ASTM B673 are widely used in:
- Chemical processing industries
- Oil and gas exploration
- Marine applications
- Power generation
- Pharmaceutical manufacturing
Possible Alternative Grades
While N08925, N08354, and N08926 are the primary grades, alternative grades that may be considered include:
- Alloy 625: Known for its high strength and excellent corrosion resistance.
- Alloy 825: Offers good resistance to both oxidation and reduction environments.
- Alloy 316L: A lower carbon version of 316 stainless steel, suitable for high-temperature applications.
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.
If you have another question, pls feel free to contact with me.
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ASTM B673 N08925 Welded Steel Tube Nickel Iron Chromium Molybdenum Welded Pipe For General Purpose Images
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