ASTM B446 Inconel 625 Nickel Alloy Bar
- Grade: UNS N06625 (Inconel 625), UNS N06219, UNS N06650
- Round: 150- 300mm
- Square: 60×60-300x300mm
- Rectangular: 50-200mm x 100 x300mm
ASTM B446 Inconel 625 Alloy Rod and Bar
At Golden Sunbird Metals, we supply high-quality ASTM B446 Inconel 625 nickel alloy bar engineered for demanding service environments where strength, corrosion resistance, and long-term reliability are essential. Inconel 625 is a nickel-chromium-molybdenum-niobium alloy known for its outstanding resistance to oxidation, pitting, crevice corrosion, and chloride-induced attack, making it an excellent choice for marine, chemical processing, aerospace, power generation, and offshore applications. Our ASTM B446 Inconel 625 bars are available in a range of sizes, conditions, and custom machining options to meet strict project requirements. With excellent mechanical properties at both elevated and cryogenic temperatures, this alloy delivers stable performance in severe operating conditions. Golden Sunbird Metals is committed to providing premium nickel alloy products with consistent quality, reliable supply, and professional service for customers worldwide.
Chemical Composition (wt.%) of ASTM B446 Inconel 625 Nickel Alloy Bar
| Element | UNS N06625 | UNS N06219 | UNS N06650 |
| Carbon | 0.10 max | 0.05 max | 0.03 max |
| Manganese | 0.50 max | 0.50 max | 0.50 max |
| Silicon | 0.50 max | 0.70-1.10 | 0.50 max |
| Phosphorus | 0.015 max | 0.020 max | 0.020 max |
| Sulfur | 0.015 max | 0.010 max | 0.010 max |
| Chromium | 20.0 – 23.0 | 18.0-22.0 | 19.0-21.0 |
| Niobium + Tantalum | 3.15 – 4.15 | – | – |
| Cobalt (if determined) | 1.0 max | – | 0.05-0.50 |
| Molybdenum | 8.0 – 10.0 | 7.0-9.0 | 9.5-12.5 |
| Iron | 5.0 max | 1.0 max | 1.0 max |
| Aluminum | 0.40 max | 2.0-4.0 | 12.0-16.0 |
| Titanium | 0.40 max | 0.50 max | 0.05-0.50 |
| Copper | – | 0.50 max | 0.30 max |
| Nickel | 58.0 min | Balance | Balance |
| Tungsten | – | – | 0.50-2.50 |
| Nitrogen | – | – | 0.05-0.20 |
Mechanical Properties For Hot-Worked ASTM B446 Inconel Rod and Bar and ASTM B446 Inconel Cold-Worked Rod
| Condition | Diameter or Distance Between Parallel Surfaces (in.) | Tensile Strength min (ksi) | Yield Strength (0.2% offset) min (ksi) | Elongation in 2 in. or 50 mm or 4D min (%) |
| UNS N06625 Grade 1 (Annealed) | Up to 4 incl | 120 | 60 | 30 |
| Over 4 to 10 incl | 110 | 50 | 25 | |
| UNS N06625 Grade 2 (Solution Annealed) | All sizes | 100 | 40 | 30 |
| UNS N06219 (Solution Annealed) | All sizes | 96 | 39 | 50 |
| UNS N06650 (Solution Annealed) | All sizes | 116 | 58 | 45 |
Features
- ASTM B446 nickel-chromium-molybdenum rod and bar for UNS N06625, UNS N06219, and UNS N06650.
- INCONEL 625 is a high-strength, corrosion-resistant nickel alloy with excellent resistance to pitting and crevice corrosion.
- Suitable for hot-worked rod and bar, as well as cold-worked rod, under ASTM B446.
- Grade 1 and Grade 2 conditions are available for UNS N06625, with Grade 2 solution-annealed for higher-temperature service.
- Designed for severe corrosive environments where strength and long-term stability are both important.
Technical Specifications
| Specification | Value |
| Standard | ASTM B446 Nickel-Chromium-Molybdenum-Niobium Alloy, Nickel-Chromium-Molybdenum-Silicon Alloy, and Nickel-Chromium-Molybdenum-Tungsten Alloy Rod and Bar |
| Grade | UNS N06625 (Inconel 625), UNS N06219, UNS N06650 |
| Manufacturing Process | Hot-worked rod and bar and Cold-worked rod |
| Delivery Condition | Grade 1 (Annealed) Material is normally employed in service temperatures up to 1100°F (593°C). Grade 2 (Solution Annealed) Material is normally employed in service temperatures above 1100°F (593°C) when resistance to creep and rupture is required. |
| Shapes | Rod, Square Bar, Rectangular Bar |
| Surface Finish | 1. Hot Finished, Annealed, or Solution-Annealed—Soft, with a tightly adherent dark oxide. 2. Hot Finished, Annealed or Solution Annealed, and Pickled. 3. Hot-Worked, Annealed, and Rough Ground. 4. Hot-Worked, Annealed, and Rough-Turned. 5. Hot-Worked, Forging Quality—Rough turned and spot ground, as necessary, for sizes 1 inch (25.4 mm) in diameter and over; rough ground and spot ground for sizes under 1 inch in diameter. 6. Cold-drawn, Annealed, or Solution-Annealed, and Pickled—Hot finished, overhauled, cold–drawn, annealed, or solution-annealed, descaled, and straightened. |
| Dimension | Round: 150- 300mm Square: 60×60-300x300mm Rectangular: 50-200mm x 100 x300mm |
| Inspection Certificate | EN 10204 Type 3.1 (Mill Test Certificate), EN 10204 Type 3.2 (Witness Testing or 3rd Party Inspection) |
| Tests | Chemical analysis ASTM E1473; Tensile Test ASTM E8; Rounding Procedure ASTM E29, UT/ET |
Applications
- Chemical processing equipment, including reaction vessels, distillation columns, heat exchangers, transfer piping, and valves.
- Aerospace components and other high-strength structural parts exposed to aggressive environments.
- Marine and offshore equipment requiring resistance to seawater and chloride-rich service.
- Pollution-control systems and nuclear reactors.
- Bubble caps, tubing, and other fabricated process parts in corrosive service.
