Compare Inconel 625 and Inconel 600 fittings: Choose the fittings that best suit your needs
The choice between Inconel 600 and Inconel 625 fittings depends entirely on your specific environment and mechanical requirements. Inconel 625 offers superior corrosion resistance, strength, and weldability, while Inconel 600 is more economical and suitable for applications with less corrosive environments and higher nickel content requirements.
What are the standard pipe materials for Inconel 600?
These pipe materials conform to ASTM B167, B829, and B517 standards. Sizes vary depending on the ASTM, ASME, and API standards. Seamless Inconel 600 pipes range in diameter from 4mm to 219mm, while welded and arc-welded pipes range in diameter from 5mm to 1219.2mm, with wall thicknesses ranging from 0.5mm to 20mm.
Inconel 600 Composition
| Inconel | Element (% by mass) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ni | Cr | Fe | Mo | Nb | Co | Mn | Cu | Al | Ti | Si | C | S | P | B | |
| 600 | 72.0 | 14.0–17.0 | 6.0–10.0 | 1.0 | 0.5 | 0.5 | 0.15 | 0.015 | |||||||
Inconel 600 Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 600 | 2.4816 | N06600 | МНЖМц 28-2,5-1,5 | NC15FE11M | NCF 600 | NA 13 | NiCr15Fe | ЭИ868 |
Inconel 600 Melting Point, Density and Tensile Strength
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | |
|---|---|---|---|---|---|
| 600 | 8.47 g/cm3 | 1413 °C (2580 °F) | Psi – 95,000 , MPa – 655 | Psi – 45,000 , MPa – 310 | 40 % |
Inconel 625 Composition
| Inconel | Element (% by mass) | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ni | Cr | Fe | Mo | Nb | Co | Mn | Cu | Al | Ti | Si | C | S | P | B | |
| 625 | 58.0 | 20.0–23.0 | 5.0 | 8.0–10.0 | 3.15–4.15 | 1.0 | 0.5 | 0.4 | 0.4 | 0.5 | 0.1 | 0.015 | 0.015 | ||
Inconel 625 Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS | GOST | AFNOR | JIS | BS | EN | OR |
|---|---|---|---|---|---|---|---|---|
| Inconel 625 | 2.4856 | N06625 | ХН75МБТЮ | NC22DNB4M | NCF 625 | NA 21 | NiCr22Mo9Nb | ЭИ602 |
Inconel 625 Melting Point, Density and Tensile Strength
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation | |
|---|---|---|---|---|---|
| 625 | 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
When to Choose Which Material
If your application requires the following properties, choose Inconel 625 fittings:
Highly Corrosive Environments: Excellent resistance to a variety of acids, salt water, pitting, and crevice corrosion, making it ideal for marine and chemical processing applications.
High Strength and Toughness: Suitable for applications requiring high creep rupture strength, fatigue resistance, and durability under extreme mechanical stress, such as aerospace engine components.
Ease of Machining: You need a material that can be easily welded without special post-weld heat treatment.
If your application requires the following properties, choose Inconel 600 fittings:
Cost-Effectiveness: Performance requirements can be met at a lower cost for operating environments that are not extremely harsh.
Specific Chemical Resistance: Good resistance to high-temperature oxidation, carburizing, and alkaline solutions, commonly found in heat treatment furnaces and certain petrochemical applications.
High-Purity Water Environments: Applications in certain nuclear power plant components where high nickel content and resistance to chloride stress corrosion cracking (after stress relief) are crucial.
Why Choose Gnee Nickel Alloy (Supplier Example)?
✅ Large stock of Incoloy alloy tubes/bars/plates/fittings/coils, fast shipping.
✅ Factory direct sales, highly competitive prices, excellent value for money.
✅ Comprehensive quality assurance: Material Testing Certificate (MTC), chemical composition certificate, and mechanical property certificate.
✅ Value-added services: slitting, cutting, polishing, surface treatment.
✅ Worldwide shipping, secure and reliable packaging, and provision of export-required documents.
Email: ss@gneemetal.com
Gnee Steel is a supplier of Inconel 600/625 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 600/625 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 600/625, 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.
