Inconel 600 alloy bars Vs Inconel 625 round bars

Inconel 600 alloy bars Vs Inconel 625 round bars
Inconel 600 bars are a nickel-chromium-iron alloy bar stock favored for their high-temperature stability and corrosion resistance, making them particularly suitable for high-temperature and high-pressure environments. Inconel 625 alloy bars, on the other hand, are a nickel-chromium alloy with added molybdenum, giving them superior strength, corrosion resistance, and weldability. The specific choice depends on the application: Inconel 600 round bars are typically suitable for high-temperature and high-pressure environments and are a lower-cost option; while Inconel 625 round bars are more robust and durable, and are more expensive, suitable for harsher and more corrosive environments such as aerospace and chemical industries.
Will Inconel 600 rust?
The high nickel content of Inconel 600 alloy makes it resistant to corrosion from a variety of organic and inorganic compounds, and it is virtually free from chloride stress corrosion cracking.

Inconel 625 and Inconel 600 are both high-performance high-temperature alloys, widely used in various industries due to their excellent performance at high temperatures and superior corrosion resistance. But what are the differences between them? Let's compare Inconel 625 and Inconel 600 in detail.
Basic Information:
Both Inconel 600 and Inconel 625 are solid solution-strengthened Inconel alloys. Due to differences in chemical composition, their corrosion resistance and strength also differ.
Inconel 600, UNS number N06600 or W.Nr. 2.4816, is a standard engineering material used for applications requiring heat and corrosion resistance. Inconel 625, UNS number N06625 or W.Nr. 2.4856, is widely used due to its high strength, excellent machinability, and outstanding corrosion resistance.
Equivalent Grades Of Inconel 600 & Inconel 625

| Equivalent Grades | INCONEL 625 | INCONEL 600 |
|---|---|---|
| EN – DIN | NiCr 22 Mo 9 Nb | NiCr 15 Fe |
| ASTM – UNS | N06625 | N06600 |
| W. Nr | 2.4856 | 2.4816 |
| AFNOR | NC 22 DNb | NC 15 Fe 7 TA |
Comparision Of Inconel 600 & Inconel 625 Bar Properties
| Properties Category | Specific Property | INCONEL 625 | INCONEL 600 |
|---|---|---|---|
| Mechanical Properties | Elongation at Break | 3.4 to 35% | 33 to 34% |
| Poisson's Ratio | 0.29 | 0.29 | |
| Shear Strength | 430 to 570 MPa (62 to 83 x 10³ psi) | 530 to 600 MPa (77 to 87 x 10³ psi) | |
| Shear Modulus | 75 GPa (11 x 10⁶ psi) | 79 GPa (11 x 10⁶ psi) | |
| Thermal Properties | Curie Temperature | -120°C (-190°F) | -200°C (-320°F) |
| Latent Heat of Fusion | 310 J/g | 330 J/g |
Application Wise Difference Between Alloy 600 Bar and 625 Alloy Bar
| Application | Inconel 600 | Inconel 625 | |
|---|---|---|---|
| High-Temperature Uses | ![]() |
Furnace components heat-treating equipment |
Jet engines heat shields exhaust systems |
| Chemical Processing | ![]() |
Heat exchangers evaporators gas turbines |
Acid scrubbers pollution control systems |
| Marine Applications | ![]() |
Not commonly used |
Seawater piping subsea equipment |
| Power Generation | ![]() |
Reactor components steam generators |
Flue gas scrubbers heat exchangers steam lines |
| General Industrial | ![]() |
Food processing industrial heating |
Mining petrochemical extreme durability |
Chemical Composition Of Nickel 600 & 625 Rod

| Properties | INCONEL 625 | INCONEL 600 |
|---|---|---|
| Sulfur (S) | 0 to 0.015 | 0 to 0.015 |
| Carbon (C) | 0 to 0.1 | 0 to 0.15 |
| Aluminum (Al) | 0 to 0.4 | - |
| Manganese (Mn) | 0 to 0.5 | 0 to 1.0 |
| Iron (Fe) | 0 to 5.0 | 6.0 to 10 |
| Molybdenum (Mo) | 8.0 to 10 | - |
| Nickel (Ni) | 58 to 68.9 | 72 to 80 |
| Chromium (Cr) | 20 to 23 | 14 to 17 |
| Niobium (Nb) | 3.2 to 4.2 | - |
| Cobalt (Co) | 0 to 1.0 | - |
| Silicon (Si) | 0 to 0.5 | 0 to 0.5 |
| Titanium (Ti) | 0 to 0.4 | - |
| Phosphorus (P) | 0 to 0.015 | - |
| Copper (Cu) | - | 0 to 0.5 |
Inconel 600 & 625 Round Bar Weight Per Meter

| Diameter (mm) | INCONEL 600 (KG P/Mtr) | Diameter (mm) | INCONEL 625 (KG P/Mtr) |
|---|---|---|---|
| 160 | 171.52 | 203 | 273.15 |
| 130 | 113.23 | 114.3 | 86.60 |
| 101.6 | - | 101.6 | 68.42 |
| 100 | - | 100 | 66.28 |
| 80 | 42.88 | - | - |
| 75 | 37.69 | 76.2 | 38.49 |
| 70 | - | 70 | 32.48 |
| 63.5 | 27.02 | - | - |
| 57.15 | 21.88 | - | - |
| 50.8 | 17.29 | 50.8 | 16.57* |
| 50 | - | 50 | 16.57 |
| 44.45 | 13.24 | - | - |
| 40 | - | 40 | 10.61 |
| 38.1 | 9.73 | - | - |
| 35 | - | 35 | 8.12 |
| 31.75 | - | 31.75 | 6.68 |
| 25 | 4.19 | - | - |
| 22.23 | 3.31 | - | - |
| 20 | 2.68 | - | - |
| 19.05 | 2.43 | - | - |
| 16 | - | 16 | 1.70 |
| 12.7 | 1.08 | - | - |
| 9.53 | 0.61 | - | - |
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.











