Comparison of Inconel alloy 600 and 625 tubing and pipes
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Comparison of Inconel alloy 600 and 625 tubing and pipes
Inconel 600 tubing offers good strength and heat resistance, making it well-suited for high-temperature environments, but its corrosion resistance is somewhat inferior. Inconel 625 alloy tubing performs better under harsh conditions, possessing higher strength, better oxidation resistance, and immunity to chloride stress corrosion due to its higher chromium and molybdenum content. Therefore, it is ideal for marine/oil and gas industries, but it is more expensive and more difficult to process. For general high-temperature applications, Inconel 600 tubing can be chosen; for highly corrosive and high-stress marine/chemical environments, Inconel 625 tubing should be selected.
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What are the standard pipes for Inconel 600?
These pipes conform to ASTM B167, B829, and B517 specifications. Pipes are available in various sizes according to ASTM, ASME, and API standards. Inconel 600 seamless pipes have a diameter range of 4 mm to 219 mm, while welded and electric fusion welded pipes have a diameter range of 5 mm to 1219.2 mm, with wall thicknesses ranging from 0.5 mm to 20 mm.
Inconel Alloy 600-625 Pipes And Tubes Product Specifications
| Specification Item | Details |
|---|---|
| Alloy or Not | Is Alloy |
| Type | Welded |
| Color | Silver |
| Product Type | Nickel Alloy Pipe |
| Material | Nickel Alloy |
| Shape | Round |
Inconel Alloy 600-625 Pipes And Tubes Trade Information
| Trade Information Item | Details |
|---|---|
| Minimum Order Quantity | 10 Kilograms |
| Payment Terms | Cash in Advance (CID) |
| Supply Ability | 100 Kilograms Per Month |
| Delivery Time | 10 Days |
Inconel 600-625 alloy tubing is a welded tubing made from nickel alloy, exhibiting a silvery-white appearance. This tubing utilizes alloy materials, thus possessing excellent corrosion resistance and high-temperature resistance. The circular cross-section of the tubing makes it suitable for various industrial applications, such as in the chemical, aerospace, and marine engineering fields. These tubes are available in different lengths and sizes to meet diverse customer needs. Known for its high strength, durability, and superior performance under extreme conditions, Inconel 600-625 alloy tubing is a reliable choice for critical applications.
Comparison of the chemical composition of Inconel 625 and Inconel 600
| Element | Inconel 625 | Inconel 600 |
|---|---|---|
| Nickel (Ni) | 58-63% | 72-76% |
| Chromium (Cr) | 20-23% | 14-17% |
| Iron (Fe) | Balance | Balance |
| Molybdenum (Mo) | 8-10% | None |
| Niobium (Nb) | 3.0-4.0% | None |
| Carbon (C) | ≤0.10% | ≤0.15% |
Comparison of Mechanical Properties of Inconel 625 and Inconel 600
| Property | Inconel 625 | Inconel 600 |
|---|---|---|
| Yield Strength (MPa) | 280 – 345 | 200 – 310 |
| Ultimate Tensile Strength (MPa) | 700 – 1,200 | 450 – 700 |
| Elongation (%) | 30% (min) | 30% (min) |
| Hardness (Rockwell B) | 40-50 | 80-100 |
The choice between Inconel 600 and Inconel 625 tubing primarily depends on the severity of the operating conditions:
Choose Inconel 600 tubing if your main considerations are high-temperature oxidation resistance (up to 1038°C), resistance to stress corrosion cracking caused by high-purity water, or if your system is in a moderately non-oxidizing corrosive environment and cost is a significant factor. The lower price of Inconel 600 tubing is only justified if its moderate strength and resistance to localized corrosion meet the requirements.
Choose Inconel 625 tubing if your project requires the highest structural integrity and creep strength, or will be exposed to severe localized corrosion (pitting/crevice corrosion) caused by chlorides (e.g., marine environments), or needs to withstand corrosion from strong oxidizing acids. In demanding applications, the high performance, high strength, and excellent weldability of 625 alloy tubing are a significant advantage and can significantly improve operational safety.
Obtain high-performance Inconel 600 and Inconel 625 tubing from Gnee Steel. We are committed to providing superior engineering solutions for a wide range of applications. Contact us today for a personalized quote and elevate your project with our high-quality alloy solutions and Inconel products.
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅ Over 18 years of export experience, products sold to more than 80 countries
✅ Certified by ISO, SGS, and BV
✅ Global inventory of Inconel, Hastelloy, Incoloy, and Monel alloy tubing, plates, and bars
✅ Custom processing services available – including cutting, polishing, CNC machining, and packaging
✅ Fast delivery within 7-15 days, supported by global logistics partners
📦 Packaging and Shipping
All stainless steel products are packaged using the following methods:
Wooden pallets or crates
Moisture-proof packaging
Labels with furnace number, standard, and size labels
Shipped worldwide by sea, air, or express
Gnee Steel is a supplier of Inconel 600 alloy, offering a wide range of products including: seamless pipe (sizes: 4-219 mm; thickness: 0.5-20 mm); welded pipe (sizes: 5.0-1219.2 mm; thickness: 0.5-20 mm); plates (thickness: 0.1 to 100 mm; width: 10-2500 mm); strips; alloy round bars (diameter: 3-800 mm); flat bars (thickness: 2-100 mm; width: 10-500 mm); hexagonal bars (size: 2-100 mm); wire rods; and extruded profiles. We collaborate with steel mills to provide our customers with Inconel 600 alloy products that meet or exceed numerous leading industry standards, including ASTM, ASME, SAE, AMS, ISO, DIN, EN, and BS standards.
Gnee Steel stocks and sells Inconel 600, pipes, plates, strips, round bars, flat bars, forged billets, hexagonal steel, wire rods, and extruded profiles. Please feel free to contact us at ss@gneesteel.com for a quote.
