Table of Contents
- Inconel 625 Round Bars Overview
- Technical Specifications
- Mechanical Properties & Chemical Composition
- Types of Inconel 625 Round Bars
- Key Advantages of UNS N06625 Round Bars
- Key Applications of Inconel 625 Round Bars
- Quality Testing & Inspection
- Global Export Markets
- Frequently Asked Questions
- Contact Aurum Overseas
Inconel 625 Round Bars Supplier & Exporter
For deep-sea subsea hardware, chemical processing valves, and aerospace thrust reversers requiring high yield strength and pitting resistance, Aurum Overseas provides precision round bars. As a premier Inconel 625 Round Bars Supplier and Exporter, we supply solid solution-strengthened nickel-chromium-molybdenum-niobium bars designed for harsh corrosive service up to 980°C (1800°F).
-round-bar.webp "Inconel 625 Round Bars")
We supply UNS N06625 Round Bars engineered to ASTM B446, ASTM A276, ASTM A479, and Werkstoff 2.4856 standards across metric and imperial dimensions. Our ready-to-ship inventory features centerless ground Inconel 625 Bright Bars for CNC turning alongside heavy-section Inconel 625 Forged Bars for critical pressure vessels, backed by complete EN 10204 3.1 MTR documentation.
We export these high-strength nickel alloy bars across North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy, Netherlands, Norway), the Middle East (UAE, Saudi Arabia, Qatar, Kuwait, Oman), and Asia-Pacific (Singapore, Malaysia, Australia).
Technical Specifications
| Technical Parameter | Standard Specification |
|---|---|
| Material Grade | Inconel 625 / Alloy 625 |
| UNS Designation | UNS N06625 |
| Manufacturing Standards | ASTM B446, ASTM A276, ASTM A479, ASME SB446, AMS 5666, EN 10095 |
| Diameter Capability | Imperial: 1/8" to 20" NB | Metric: 3 mm to 500 mm |
| Length Options | 3 Meters, 6 Meters, Random Lengths, Custom Cut-to-Length |
| Dimensional Tolerances | ISO h8, h9, h10, h11, k12, DIN 1013 / EN 10060 |
| Supply Conditions | Annealed (Grade 1), Solution Annealed (Grade 2), Cold Drawn, Centerless Ground, Hot Rolled, Forged |
Mechanical Properties & Chemical Composition
Equivalent Grades of Inconel 625 Round Bars
| Standard | Werkstoff Nr. | UNS | JIS | EN |
|---|---|---|---|---|
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NiCr22Mo9Nb |
Chemical Composition of Inconel Alloy 625 Bars
| Element | Composition (%) |
|---|---|
| Nickel (Ni) | 58.00 min |
| Chromium (Cr) | 20.00 – 23.00 |
| Molybdenum (Mo) | 8.00 – 10.00 |
| Niobium + Tantalum (Nb + Ta) | 3.15 – 4.15 |
| Iron (Fe) | 5.00 max |
| Cobalt (Co) | 1.00 max |
| Carbon (C) | 0.10 max |
| Manganese (Mn) | 0.50 max |
| Silicon (Si) | 0.50 max |
| Aluminum (Al) | 0.40 max |
| Titanium (Ti) | 0.40 max |
| Phosphorus (P) | 0.015 max |
| Sulfur (S) | 0.015 max |
Mechanical Properties of Nickel Alloy 625 Round Bars
| Property | Metric Value | Imperial Value |
|---|---|---|
| Ultimate Tensile Strength | 930 MPa min | 135,000 psi min |
| Yield Strength (0.2% Offset) | 517 MPa min | 75,000 psi min |
| Elongation (%) | 42.5% min | 42.5% min |
| Density | 8.4 g/cm³ | 0.303 lb/in³ |
| Melting Point | 1350°C | 2460°F |
Types of Inconel 625 Round Bars
Aurum Overseas supplies ASTM A276 Inconel 625 Round Bars in precision bright and heavy forged conditions for extreme thermal processing and aggressive furnace atmospheres.
Inconel 625 Bright Bars
Inconel 625 Forged Bars
Key Advantages of UNS N06625 Round Bars
Solid Solution Strengthening
Molybdenum (8–10%) and Niobium (3.15–4.15%) distort the nickel matrix to produce ultra-high strength without needing precipitation hardening heat treatment.
Exceptional Pitting & Crevice Resistance
High PREN rating protects bars against severe localized attack in stagnant, high-chloride marine and brackish water setups.
Immunity to Stress Corrosion Cracking
High nickel base completely eliminates chloride-induced stress corrosion cracking in hot seawater and sour oilfield environments.
Broad Temperature Versatility
Retains high tensile and impact strength from sub-zero cryogenic conditions up to 980°C (1800°F).
High Resistance to Organic & Mineral Acids
Effectively resists aggressive media including phosphoric, nitric, sulfuric, and hydrofluoric acid solutions during chemical manufacturing.
Key Applications of Inconel 625 Round Bars
| Industry Sector | Typical Components | Operating Conditions |
|---|---|---|
| Offshore & Marine | Subsea mooring line hardware, propeller shafts, and valve trim | High-pressure seawater, marine biofouling, and pitting conditions |
| Oil & Gas Extraction | Downhole sour gas tools, wellhead components, and risers | Acidic H₂S, high-density chlorides, and high downhole pressure |
| Chemical Processing | Reaction vessel shafts, acid lines, and heat exchanger bars | Hot phosphoric acid, organic acid streams, and halide exposure |
| Aerospace & Defense | Thrust reverser systems, engine ducting, and turbine lock wire | Rapid thermal shock, combustion gas streams, and high stress |
| Nuclear Systems | Reactor core components and control rod drive mechanisms | High-purity radioactive cooling water, stress, and thermal exposure |
Quality Testing & Inspection
As a leading Inconel 625 Round Bars Exporter, Aurum Overseas subjects every shipment to strict quality verification:
- Positive Material Identification (PMI): Spectrometer testing verifies exact chemical element ratios (Ni ≥ 58%, Mo 8–10%, Nb 3.15–4.15%).
- Ultrasonic Testing (UT): ASTM A388 testing checks heavy forged bars for internal voids, cracks, or flaws.
- Mechanical & Hardness Testing: Tensile strength, yield, elongation, and Rockwell/Brinell hardness verified per ASTM B446.
- Dimensional & Surface Checks: Precision tools inspect straightness, roundness, outer diameter tolerances, and surface roughness (Ra).
Global Export Markets
As an established Inconel 625 Round Bars Exporter, Aurum Overseas supplies fully certified UNS N06625 Round Bars to global energy and thermal engineering centers:
USA
Canada
Mexico
Germany
United
Kingdom
France
Italy
Netherlands
Belgium
Spain
Poland
UAE
Saudi
Arabia
Qatar
Kuwait
Oman
Bahrain
Frequently Asked Questions
Inconel 625 gains high strength from the solid-solution hardening interaction of molybdenum and niobium within its nickel-chromium matrix, avoiding the need for age-hardening heat treatments.
Grade 1 (annealed) material is optimized for high strength and aqueous corrosion resistance up to 600°C, while Grade 2 (solution annealed) is tailored for creep-rupture performance above 600°C.
Yes. UNS N06625 round bars resist sulfide stress cracking and pitting in wet H₂S oilfield environments, fully complying with NACE MR0175/ISO 15156 standards.
With high molybdenum and chromium content, Inconel 625 provides near-total immunity to pitting, crevice corrosion, and stress corrosion cracking in high-salinity seawater.
Contact Aurum Overseas
Aurum Overseas provides rapid delivery of certified Inconel 625 Round Bars for high-specification global infrastructure projects.
Contact our technical sales team for engineering support, material test certificates, or direct RFQs: