Inconel 625 Round Bar Rod (UNS N06625 / W.Nr. 2.4856)
High-strength corrosion-resistant alloy round bar for marine and chemical processing
As a leading supplier of high-performance nickel alloys, SEATHER TECHNOLOGY manufactures premium-quality Inconel 625 round bar rod (UNS N06625) engineered for outstanding corrosion resistance and mechanical stability.
Inconel 625 (UNS N06625 / W.Nr. 2.4856) is a nickel-chromium-molybdenum alloy renowned for its exceptional strength, outstanding corrosion resistance, and excellent fabricability, including superior weldability. It is suitable for a wide range of service temperatures—from cryogenic conditions up to 1800°F (982°C)—making it one of the most versatile superalloys for demanding industrial applications.
Our 625 alloy round bars and rods are produced strictly in accordance with ASTM B446, ensuring precise chemical composition, stable mechanical properties, and consistent product quality. Using advanced hot-rolling and cold-drawing processes, we achieve excellent roundness, dimensional accuracy, and uniform microstructure.
To further enhance surface quality and tolerance control, SEATHER offers additional processing options such as centerless grinding, precision polishing, and fine surface finishing. All round bars and rods undergo straightening to ensure compliance with required straightness standards, making them suitable for machining, fabrication, and demanding end-use applications.
With strong technical capability, strict quality control, and competitive pricing, SEATHER TECHNOLOGY delivers reliable 625 bar and rod products that meet the requirements of critical engineering industries.
Inconel 625 Round Bar Rod (UNS N06625) Specifications & Srtandard
- OD Range: φ4mm – φ500mm
- Length: 50mm – 6000mm
- Customized size needs to be confirmed with our team
- Grades: 625 / UNS N06625 / W.Nr. 2.4856
- Standards: ASTM B446
ASTM B564
ASME SB 446
ASME SB 564
SAE AMS 5666
SAE AMS 5837
ISO 9723
ISO 9724
ISO 9725
VdTUV 499
BS 3076NA21
EN 10095
DIN 17752
DIN 17754
DIN 17753 - Delivery State: Cold Drawn, Hot Rolled, Forged, Grinding, Centerless Grinding
- Finish: Bright, Polishing, Mirror, Hairline, Pickled, Peeled, Black
- Brand: SEATHER TECHNOLOGY, Special Metals(SMC), HAYNES International, VDM Metals, ATI, etc.
Inconel 625 Round Bar Rod (UNS N06625) Applications & Usages
- Aircraft ducting and exhaust systems
- Engine thrust-reverser systems
- Turbine shroud rings
- Bellows, expansion joints
- Gaskets and damper seals
- Motorsport exhaust and clamps
- Weld overlay and spacers for heat recovery systems
- Furnace muffles
- Valve seats and components
Inconel 625 Round Bar Rod (UNS N06625) Drawing & Formula
Formula: m = D (mm) × D (mm) × L (m) × ρ (g/cm³) × π ÷ 4000
D = Diameter, L = Length, ρ = Density, π = 3.1415926…
What is Inconel 625 (UNS N06625)
Nickel alloy 625 is widely used in marine applications due to its outstanding corrosion resistance. Its ability to withstand localized corrosion (pitting and crevice corrosion), chloride ion stress corrosion, and its excellent fatigue strength make it ideal for marine components such as propeller blades, exhaust systems, and fasteners.
Additionally, alloy 625 is extensively employed in the aerospace industry for its superior high-temperature tensile properties and creep strength. It is commonly used in aircraft piping systems, engine exhausts, fuel and hydraulic lines, and heat exchanger tubes. Its high-temperature resistance also makes it valuable in heat treatment equipment and the chemical industry.
Inconel 625 Round Bar Rod (UNS N06625) Chemical Composition
| Grade | Standard | C | Si | Mn | P | S | Cr | Ni | Mo |
| 625 | ASTM B443 | ≤0.1 | ≤0.50 | ≤0.50 | ≤0.015 | ≤0.015 | 20.00-23.00 | ≥58.0 | 8.0-10.0 |
Inconel 625 Round Bar Rod (UNS N06625) Mechanical Properties
| Element | Yield Strength (0.2%Offset) | Melting Point | Density | Tensile Strength | Elongation |
| 625 | MPa – 276 | 1350 °C (2460 °F) | 8.44 g/cm3 | MPa – 690 | Min 30 % |
Inconel 625 Round Bar Rod (UNS N06625) Physical Properties
| Melting Range | Specific Heat, 20°C (J/(g.K)) | Magnetic Permeability (20°C) | Thermal Conductivity, 20°C (W/(m.K)) | Curie Temperature (°C) |
| 1350 °C (2460 °F) | 410 | <1.001 | 9.9 | -196 |

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Sheet Metal Fabrication
SEATHER’s custom sheet metal fabrication services offer a fast and cost-effective solution for your projects.

Metal Welding Service
Seather provides some of the best solutions ranging from custom metal welding and related services.
More Information About Inconel 625 Round Bar Rod (UNS N06625)
When you choose to buy Inconel 625 Round Bar Rod (UNS N06625), there have some important points we need to know before we get started.
Pitting resistance equivalency numbers (PREN) for Inconel 625 Round Bar Rod
Inconel 625 PREN: 40.8
The pitting resistance equivalency number uses the alloy’s chemical makeup to guess its power against pitting corrosion. You check how much chromium, molybdenum, tungsten, and nitrogen are in the alloy. These elements help keep the steel safe. The most used formula is:
PREN = CR% + 3.3 x (MO% + 0.5 x W%) + 16 x N% How to Purchase Inconel 625 Round Bar Rod (UNS N06625)
When purchasing strips coils, it’s essential to have the right materials and information to ensure a smooth procurement process and to get the products that meet your needs.
Here’s what you need to provide:
1. Material: Specify the grade material, 625 (UNS N06625)
2. Size: Specify the coil’s thickness, width, edge, inner diameter, outer diameter.
3. Quantity: Provide the exact number of strips required for an accurate quotation.
4. Technical specifications: Include technical specifications and drawings. If there are unique design requirements, detailed drawings can be attached.
5. Quality standards: Specify quality standards and inspection requirements, such as the need for third-party inspection, material certification, and inspection reports.
6. Special requirements: Specify any special surface treatment, polishing, corrosion resistance requirements, etc.
7. Packaging requirements: If there are specific packaging needs, such as protective or anti-corrosion packaging, please specify.
8. Delivery time: Specify the expected delivery time and location.
By preparing the above information, you can streamline the process of purchasing strips and ensure that you receive high-quality products that meet your requirements.
Conclusion
We have introduced our products briefly. If you want to know more about it, you can check the article here Inconel Alloy 625: Composition, Properties and Applications.
If you need to purchase alloy round bar, please get in touch with us immediately.
Trademark Notices:
Inconel®, Incoloy®, and Monel® are registered trademarks of Special Metals Corporation.
Hastelloy® is a registered trademark name of Haynes International, Inc.
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