What is Inconel 625 material?
Inconel 625 (UNS N06625) is a high-performance, non-magnetic nickel-chromium-molybdenum alloy that exhibits exceptional strength, toughness from cryogenic temperatures to high temperatures (up to 2000°F/1093°C), and excellent corrosion resistance to a variety of corrosive environments, such as saltwater, acids, and pitting corrosion. Therefore, it is an ideal material for aerospace, marine, chemical, and nuclear reactor components, and is frequently used in parts requiring high strength without the need for heat treatment.
What is the equivalent material to Inconel 625?
The main equivalent grade of Inconel 625 is UNS N06625, with common names including Alloy 625 (generic name) and other trade names (e.g., Haynes 625, Nicrofer 6020), while the European standard is EN NiCr22Mo9Nb or Werkstoff Nr. 2.4856.
Is Inconel 625 a stainless steel?
Inconel® 625 stainless steel, with a chromium-nickel and low carbon content, is used for its outstanding corrosion resistance especially at elevated temperatures. This alloy has similar physical properties and fabrication characteristics as Type 304 at room temperature.
What is the composition of 625?
Alloy 625 (Inconel 625) is a nickel-based superalloy defined by its primary elements: Nickel (min 58%), Chromium (20-23%), Molybdenum (8-10%), and Niobium (3.15-4.15%).
| Element | Content Range | Element | Content Range |
|---|---|---|---|
| Nickel | 58.0 min. | Silicon | 0.50 |
| Chromium | 20.0 min. – 22.0 max. | Phosphorus | 0.015 |
| Molybdenum | 8.0 min. – 10.0 max. | Sulfur | 0.015 |
| Iron | 5.0 max. | Aluminum | 0.40 |
| Niobium (plus Tantalum) | 3.15 min. – 4.15 max. | Titanium | 0.40 |
| Carbon | 0.010 | Cobalt (if determined) | 1.0 |
| Manganese | 0.50 | - | - |
Inconel 625 mechanical properties
| Temperature | 0.2% Yield Strength | Ultimate Tensile Strength | Elongation Percent | |||
|---|---|---|---|---|---|---|
| °F | °C | psi | MPa | psi | MPa | |
| 1920 | 1065 | 63,000 | 430 | 136,000 | 940 | 51.5 |
Inconel 625 Physical Properties
Density: 0.303 lb/in3(8.44 g/cm3
Specific Gravity: 8.44
Melting Range: 2350 - 2460°F (1280 - 1350°C)
Specific Heat: 0.098 Btu/lb x °F (410 Joules/kg x °K)
Magnetic Permeability (75°F, 200 oersted): 1.0006
What is the hardness of Inconel 625?
Inconel 625 hardness (HRC) varies significantly with condition, typically around 22-29 HRC in the annealed state, but increasing to 35-42 HRC or even higher with cold working or aging, providing good strength and ductility, though it work-hardens rapidly, requiring care during forming.
Inconel 625 harder than 316 stainless steel?
Yes. Annealed Inconel 625 (190–220 HBW) is harder than annealed 316 stainless steel (150–180 HBW), thanks to its higher nickel, molybdenum, and niobium content.
Inconel 625 Alloy Price (per kilogram)
In 2025, the current price of Inconel 625 alloy is between US$25 and US$45 per kilogram. The exact price varies depending on the form (bars, plates, tubes), size, surface treatment, and order quantity. This alloy is a nickel-based superalloy with strong demand in the aerospace, marine, and chemical industries.
What is the difference between Inconel 625 and hastelloy c276?
Inconel 625 and Hastelloy C-276 are both high-performance nickel-based alloys. The main difference lies in their composition: Inconel 625 has a higher chromium content, making it more suitable for oxidizing environments (such as concentrated sulfuric acid and nitric acid), while Hastelloy C-276 has a higher molybdenum content, providing superior resistance to reducing environments (such as hydrochloric acid and hydrogen sulfide).
who choose us?
If you have project requirements for Inconel 625 stainless steel bars, we welcome your order. GNEE has a large inventory of popular products for you to choose from. It can be processed into various practical product forms, including plates, coils, tubes, bars, and wires. For detailed chemical composition information and free samples, please contact our factory immediately. We offer competitive prices and excellent service.
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