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As a leading supplier of high-performance nickel alloys, we provide Nickel Alloy 625 (UNS N06625 / Alloy 625), a superior solution for extreme environments. This nickel-chromium-molybdenum superalloy offers exceptional yield strength and tensile strength, excellent corrosion resistance against pitting and crevice corrosion, and outstanding oxidation resistance at high temperatures. Ideal for chemical processing, aerospace, and marine applications, our Inconel 625 plate, sheet, bar, and pipe are available to meet your most demanding project specifications.
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Alloy 625 (UNS N06625/W.Nr. 2.4856)
Alloy 625 (UNS N06625 / W.Nr. 2.4856) is the ultimate multi-industry solution, engineered to conquer your most demanding environmental challenges. Renowned for its unique combination of high strength, exceptional fabricability, and outstanding corrosion resistance, this versatile nickel-chromium superalloy performs reliably from cryogenic temperatures up to 1800°F (982°C). Unlike other alloys, its strength comes from a solid solution of molybdenum and niobium, eliminating the need for complex precipitation-hardening treatments. This makes INCONEL® alloy 625 your go-to material for critical applications across aerospace, chemical processing, marine, and nuclear fields, delivering unmatched performance and durability where it matters most.
Tackle Extreme Environments with Alloy 625 (INCONEL® 625)
From the depths of the ocean to the frontiers of aerospace, engineers rely on Alloy 625 for its proven performance. Here's how it delivers across key sectors:
For Marine & Offshore: Conquer corrosive seawater with confidence. Alloy 625 provides superior resistance to pitting, crevice corrosion, and stress-corrosion cracking, making it ideal for mooring cables, propeller blades, submarine components, and exhaust systems.
For Aerospace & Defense: Achieve lightweight reliability under extreme heat and stress. With high tensile, creep, and fatigue strength, plus excellent weldability, it's the material of choice for engine exhausts, thrust reversers, hydraulic tubing, and combustion liners.
For Chemical Processing: Build durable, high-efficiency plant equipment. Its versatile corrosion resistance and high strength allow for thinner-walled vessels and heat exchangers, improving heat transfer and reducing costs in applications involving reactors, distillation columns, and transfer piping.
For Nuclear Energy: Meet stringent safety and performance standards. Alloy 625 offers excellent corrosion resistance and high design strength for reactor-core components in both current and next-generation nuclear systems.
Alloy 625 (UNS N06625): Your Engineering Advantage in a Single Material
Unmatched Strength: Solid-solution strengthened by Mo and Nb, providing high tensile, creep, and fatigue strength without the need for precipitation hardening.
Superior Corrosion Resistance: Outstanding performance against a wide spectrum of corrosive media, including pitting, crevice corrosion, and oxidation.
Exceptional Fabricability: Excellent weldability and brazeability simplify manufacturing and reduce production costs.
Extreme Temperature Tolerance: Reliable performance from cryogenic conditions up to 1800°F (982°C).
Proven Across Industries: A trusted material for critical components in Aerospace, Marine, Chemical, and Nuclear applications.
Alloy 625 (UNS N06625/W.Nr. 2.4856) Chemical Composition
| Weight % | Ni | Cr | Mo | Nb + Ta | Fe | Ti | C | Mn | Si | S | P | Al | Co |
| Alloy 625 | 58.0 min | 20 - 23 | 8 -10 | 3.15 -4.15 | 5.0 max | 0.40 max | 0.10 max | 0.50 max | 0.50 max | 0.15 max | 0.15 max | 0.40 max | 1.0 max |
Alloy 625 (UNS N06625/W.Nr. 2.4856) Mechanical Properties
| Material Form and Condition | Tensile Strength MPa | Yield Strength (0.2% Offset) MPa | Elongation 4D(%) | Hardness HB | |||
| Ksi | MPa | Ksi | MPa | ||||
| Alloy 625 Bar | Annealed | 120 | 827 | 60 | 414 | 30 | ≤ 287 HB |
| Alloy 625 Sheet | Annealed | 120 | 827 | 60 | 414 | 30 | 145-240 |
| Alloy 625 Tube Seamless and Welded |
Annealed | 120 | 827 | 60 | 414 | 35 | - |
Available Products and Specifications
| Bar | ASTM B 446, ASME SB 466, AMS 5666, ISO 9723, VdTUV 499, BS 3076 NA21, EN 10095, DIN 17752, ASME Code Case 1935 |
| Rod | ASTM B 446, ASME SB 466, ISO 9723, VdTUV 499, BS 3076 NA21, EN 10095, DIN 17752, SME Code Case 1935 |
| Wire | AMS 5837, ISO 9724, DIN 17753 |
| Forging Stock | ASTM B 564, ASME SB 564, AMS 5666, ISO 9725, SME Code Case 1935, DIN 17754 |
| Plate | ASTM B 443, ASME SB 443, AMS 5599, AMS 5869, MAM 5599, ISO 6208, VdTUV 499, BS 3072 NA21, EN 10095, DIN 17750, ASME Code Case 1935 |
| Sheet | ASTM B 443, ASME SB 443, AMS 5599, AMS 5869, MAM 5599, ISO 6208, VdTUV 499, BS 3072 NA21, EN 10095, DIN 17750, ASME Code Case 1935 |
| Strip | ASTM B 443, ASME SB 443, AMS 5599, AMS 5869, MAM 5599, ISO 6208, VdTUV 499, EN 10095, DIN 17750, ASME Code Case 1935 |
| Pipe Seamless | ASTM B444, ASTM B829, ASME SB 444, ASME SB 829, BS3074 NA21 |
| Pipe Welded | ASTM B705, ASTM B775, ASME SB 705, ASME SB 775 |
| Tube Seamless | ASTM B444, ASTM B829, ASME SB 444, ASME SB 829, AMS 5581, BS3074 NA21, AMS 5581 Type 1 |
| Tube Welded | ASTM B704, ASTM B751, ASME SB 704, ASME SB 704, AMS 5581, AMS 5581 Type 2 |
| Tube | VdTUV 499, ISO 6207, DIN 17751, ASME Code Case 1935 |
| Fittings | ASTM B 366, ASME SB 366 |
| Powder | ASTM F3056, AMS 7001 |
| Other | UNS N06625, W. Nr 2.4856, ISO NW6625, NACE MR-01-75, INCONEL 625 (trademark), MSRR 7264 |
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