Differences between Inconel 600 and Inconel 625 alloy round bars
Gnee Steel
Differences between Inconel 600 and Inconel 625 alloy round bars
Due to its higher molybdenum and chromium content, Inconel 625 round bars offer superior corrosion resistance, higher strength, and better weldability compared to Inconel 600 round bars. In contrast, Inconel 600 round bars are more economical and perform well at high temperatures without requiring special welding processes.

Gnee Steel
What temperature can Inconel 600 withstand?
Inconel 600 alloy has a wide range of applications and can be used in various temperature environments from low temperatures to above 2000°F (1095°C). Due to its high strength and corrosion resistance, this alloy is widely used in the chemical industry.

Inconel 600 / 625 Round Bars Specifications :
| Dimensions : ASTM, ASME and API |
| Specifications : ASTM / ASME SB 166, ASTM / ASME B 446 , ASTM / ASME B 637, ASTM B 511, ASTM B 408. |
| Length : 100 mm To 3000 mm Long & Above |
| Size : 5 mm To 500 mm Dia in 100 mm TO 6000 mm Length available with NACE MR 01-75. |
| Finish : Bright, Polish & Black |
| Form : Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wire-mesh, Billet, Ingot, Forging Etc. |
Inconel 600/625 Round Bars Specifications
| STANDARD | UNS | WERKSTOFF NR. | BS | JIS | AFNOR | GOST | EN |
| Inconel 600 | N06600 | 2.4816 | NA 13 | NCF 600 | NC15FE11M | МНЖМц 28-2,5-1,5 | NiCr15Fe |
| Inconel 625 | N06625 | 2.4856 | NA 21 | NCF 625 | NC22DNB4M | ХН75МБТЮ | NiCr22Mo9Nb |
Inconel Alloy 600 vs Inconel Alloy 625 Mechanical Properties
Alloy 600 Mechanical Properties
| Element | 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 % |
Alloy 625 Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 8.4 g/cm3 | 1350 °C (2460 °F) | Psi – 135,000 , MPa – 930 | Psi – 75,000 , MPa – 517 | 42.5 % |
Key Differences: Inconel 600 vs. Inconel 625
| Feature | Inconel 600 | Inconel 625 |
|---|---|---|
| Composition | Nickel-chromium-iron alloy | Nickel-chromium alloy with significant molybdenum and niobium |
| Corrosion Resistance | Good resistance to heat and corrosion | Excellent resistance to a wide range of corrosive environments, especially pitting and crevice corrosion |
| Strength | Good high-temperature strength and mechanical properties | Higher mechanical strength due to alloying elements, particularly from molybdenum |
| Weldability | Good | Superior weldability |
| Cost | Lower cost | Higher cost due to more complex composition and production |
| Applications | High-temperature and high-pressure applications, chemical processing | Aggressive environments, high-strength applications in marine and chemical industries |
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 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.








