In high-risk sectors such as offshore engineering, chemical processing, and aerospace, material selection serves as the final line of defense against catastrophic failure.
As a specialized "Tier-1 Manufacturer," Gnee Alloy refines UNS N06625 alloy bars using a VIM (Vacuum Induction Melting) + VAR (Vacuum Arc Remelting) process, thereby ensuring absolute structural integrity and "zero-defect" quality in our products.
Inconel 625 (UNS N06625) Corrosion-Resistant Bar for Extreme Service Conditions
Inconel 625 (UNS N06625) Corrosion-Resistant Bar for Extreme Service Conditions
Inconel 625 (UNS N06625) corrosion-resistant bar is a premium nickel-chromium-molybdenum superalloy, highly esteemed for its exceptional strength and excellent resistance to aggressive media. It performs outstandingly in extreme environments, with an applicable temperature range spanning from cryogenic conditions up to high temperatures of 982°C (1800°F), all without the need for precipitation hardening treatment.
Is Inconel 625 corrosion-resistant?
Inconel 625 is a nickel-chromium-molybdenum alloy that possesses exceptional corrosion resistance. It is highly regarded in the marine, aerospace, and chemical processing industries because it is capable of withstanding both general corrosion and localized corrosion-such as pitting and crevice corrosion-even in extremely harsh and acidic environments.
1. Inconel 625 (UNS N06625) Key Specifications
| Specification | Details |
|---|---|
| Designations | UNS N06625, Werkstoff Nr. 2.4856 |
| Standard Specifications | ASTM B446, AMS 5666, NACE MR0175 (ISO 15156-3) for sour service compliance |
| Typical Tensile Strength | 827 MPa to 1034 MPa (120 ksi to 150 ksi) in annealed condition |
| Typical Yield Strength | 414 MPa (60 ksi) in annealed condition |
2. Chemical Properties Of Inconel 625 Bar
| Nickel | Chromium | Molybdenum | Iron | Niobium and Tantalum | Cobalt | Manganese | Silicon |
| 58% | 20%-23% | 8%-10% | 5% | 3.15%-4.15% | 1% | 0.5% | 0.5% |
3. Inconel 625 (UNS N06625) Typical Mechanical Properties (Annealed Condition)
| Property | Typical value (annealed at room temperature) |
|---|---|
| Tensile strength (UTS) | 70 000 – 130 000 psi (480 – 900 MPa), depending on diameter and temper |
| Yield strength 0.2% offset | 30 000 – 65 000 psi (200 – 450 MPa) |
| Elongation in 2 in (50 mm) | 30 – 60% |
| Hardness (HRB) | ~90 – 100 (annealed) |
| Density | 8.44 g/cm³ (approx.) |
Click to download the Inconel 625 alloy PDF file now
The reliability of a superalloy is born in the vacuum. We utilize a dual-vacuum refining strategy to ensure an ultra-clean microstructure:
VIM Refining: Eliminates dissolved gases (O, N, H) and volatile impurities, creating a high-purity chemical base.
VAR Remelting: Controls the solidification rate to prevent macro-segregation and ensure extreme chemical homogeneity throughout the entire cross-section.
Result: A material with superior Industrial Durability and fatigue resistance, essential for rotating turbine shafts and subsea valves.
5. Gnee Alloy Inconel 625 Bar Supply Capabilities
We maintain an extensive stock of ready-to-ship inventory, dedicated to fully supporting your equipment maintenance and production scheduling requirements.
Diameter Range: 5.0 mm to 300.0 mm (forged and precision-ground).
Surface Finish: Bright drawn, centerless ground (tolerance grades h8–h11), or peeled.
Traceability: Each bar is marked with a heat number and is accompanied by a Material Test Certificate (MTC) compliant with the EN 10204 3.1 standard.
Custom Processing: We offer precision cut-to-length services, delivering blanks that are ready for immediate machining.
6. Primary Industrial Applications of Inconel 625 Rods
Given its unique ability to withstand chemical corrosion and endure extreme physical stresses, this material-in the form of round bars-is highly relied upon across a wide range of demanding industrial sectors:
Oil and Gas: Downhole tubing, hangers, sour gas pipelines, and wellhead components.
Marine and Offshore Engineering: Seawater heat exchangers, propeller shafts, and subsea hydraulic lines.
Aerospace: Jet engine exhaust systems, aircraft ducting, and afterburner components.
Chemical Processing: Distillation columns, reaction vessels, and various valves used in the production of mineral acids.
Why Choose Gnee as Your Nickel-Based Alloy Supplier
✅️Direct Factory Price: Eliminate middleman markups and secure the best wholesale rates for bulk infrastructure projects.
✅️Short Lead Time: Standard sizes are ready for Fast Global Shipping within 5-7 business days.
✅️Zero-Defect Inspection: 100% Ultrasonic Testing (UT) and Eddy Current Testing (ET) to ensure zero internal or surface flaws.
✅️NACE Compliance: Our GH3625 (625 equivalent) is specifically processed to meet NACE MR0175 / ISO 15156 standards for sour gas service.
Gnee Alloy inconel 625 Certificate
📦 Packaging and Shipping
All Nickel Based Alloy 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 Alloy GH4169 Product Packing
Contact us for the latest export price quote for 625 Alloy
FAQ
Q1: Is your GH3625 technically identical to Inconel 625 for marine use?
A: Yes. GH3625 is the technical equivalent designation within the Chinese national standard system for the globally renowned Inconel 625 (UNS N06625) alloy. The material supplied by our company possesses identical PREN values and mechanical stability.
Q2: Can I use Inconel 625 for high-pressure fuel injectors?
A: Absolutely. Thanks to our VIM+VAR process, the material is ultra-pure, making it ideal for precision rods in fuel systems where inclusions would cause tool damage or localized failure.
Q3: Does the h9 tolerance ground rod work in a Swiss lathe?
A: Yes. Our Centerless Ground rods are specifically designed for automated feeders and Swiss-type lathes, ensuring zero vibration and zero bar-feeder interference.
Q4: Do you offer bulk discounts for petrochemical refinery overhauls?
A: Yes. As a leading Wholesale Supplier, we offer tiered pricing and dedicated project management for large-tonnage procurement.
