INCONEL 625 (ALLOY 625 UNS N06625)
Common Trade Names :
Inconel 625®, Chronin® 625, Altemp® 625, Haynes® 625, Nickelvac® 625, Nicrofer® 6020
Inconel ® 625 is a nonmagnetic, corrosion and oxidation resistant, nickel-base alloy. Alloy 625 has high strength and toughness in the temperature range cryogenic to 2000°F (1093°C) which is derived largely from the solid solution effects of the refractory metals, columbium and molybdenum, in a nickel-chromium matrix. Alloy 625 has excellent fatigue strength and stress - corrosion cracking resistance to chloride ions.
INCONEL® 625 LCF is a variant of INCONEL® 625. LCF stands for Low Cycle Fatigue. This means that the alloy has improved cycle fatigue properties and better thermal fatigue resistance. In other aspects such as chemical composition and other mechanical properties the alloy is similar to INCONEL® 625. The alloy is e.g. used for bellows, aircraft exhausts and expansion joints.
Chemical Analysis of ALLOY 625 (UNS N06625)
Common Names : Inconel 625®, Chronin® 625, Altemp® 625, Haynes® 625, Nickelvac® 625, Nicrofer® 6020
ASTM Specifications
| Pipe Smls | Pipe Welded | Tube Smls | Tube Welded | Sheet/Plate | Bar | Forging | Fitting | Wire |
|---|---|---|---|---|---|---|---|---|
| B444 | B705 | B444 | B704 | B443 | B446 | - | - | - |
Mechanical Properties
Representative Tensile Properties, bar, 1800° F anneal
| Temp° F | Tensile (psi) | .2% Yield (psi) | Elongation in 2 " (%) |
|---|---|---|---|
| 70 | 144,000 | 84,000 | 44 |
| 400 | 134,000 | 66,000 | 45 |
| 600 | 132,000 | 63,000 | 42.5 |
| 800 | 131,500 | 61,000 | 45 |
| 1000 | 130,000 | 60,500 | 48 |
| 1200 | 119,000 | 60,000 | 34 |
| 1400 | 78,000 | 58,500 | 59 |
| 1600 | 40,000 | 39,000 | 117 |
Inconel 625 Melting Point
| Melting Point | 1290 - 1350 °C | 2350 - 2460 °F |
Inconel 625 Equivalent
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Inconel 625 | 2.4856 | N06625 | NCF 625 | NA 21 | ХН75МБТЮ | NC22DNB4MNiCr22Mo9Nb | NiCr23Fe |
INCONEL 718 (UNS N07718)
Inconel Alloy 718 is austenitic nickel-based superalloy. Inconel 718 is designated as UNS N07718 and Werkstoff Number 2.4668. Inconel 718 is also known as Nicrofer 5219, Superimphy 718, Haynes 718, Pyromet 718, Supermet 718. and Udimet 718. Inconel 718 Chemistry is Nickel 52%, Chromium 19%, Iron, 18%, Columbium 5%, Molybdenum 3%, Titanium 1%. Alloy 718 is mainly used in Gas turbine engines ducts, cryogenic tanks, springs and fasteners and motor components. For most applications, Alloy 718 / Inconel 718 is specified as: solution annealed and precipitation hardened. Inconel Alloy 718 is hardened by the precipitation of secondary phases.
Inconel 718 Chemical Composition, %
| Ni | Fe | Cr | Cu | Mo | Nb | C | Mn |
|---|---|---|---|---|---|---|---|
| 50.00-55.00 | Remainder | 17.00-21.00 | .30 max | 2.80-3.30 | 4.75-5.50 | .08 max | .35 max |
| P | S | Si | Ti | Al | Co | B | |
|---|---|---|---|---|---|---|---|
| .015 max | .015 max | .35 max | .65-1.15 | .20-.80 | 1.00 max | .006 max |
Inconel 718 ASTM Specifications
| Sheet/Plate | Bar | Wire |
|---|---|---|
| B670 | B637 | - |
Inconel 718 Mechanical Properties
Typical room temperature properties, 1800°F annealed condition
| Ultimate Tensile Strength, psi | .2% Yield Strength psi | Elongation % | Hardness Rockwell B |
|---|---|---|---|
| 135,000 | 70,000 | 45 | 100 |
Inconel 718 Melting Point
|
Solution Treated |
Solution Treated and Aged |
|
|---|---|---|
| Density |
0.296 lb/in3 (8.192 g/cm3) |
0.297 lb/in3 (8.22 g/cm3) |
| Specific Gravity |
8.19 |
8.22 |
| Melting Range |
2500-2600°F |
1370-1430°C |
Inconel 718 Equivalent
| STANDARD | WERKSTOFF NR. | UNS | JIS | BS | GOST | AFNOR | EN |
| Inconel 718 | 2.4668 | N07718 | NCF 718 | – | – | – | – |
Our factory
Our nickel-based alloy products originate from a modern precision manufacturing base. The factory is equipped with fully automated vacuum induction melting (VIM), electroslag remelting (ESR), and multi-directional forging hydraulic units, ensuring that every step from melting to forming meets aerospace-grade standards. Through a digital process control system, we achieve precise control over composition purity, grain size, and mechanical properties. Each batch of products is accompanied by traceable melting reports and third-party certifications (such as DNV-GL, ABS, aerospace standards, etc.), ensuring the authenticity and reliability of performance data.
Packaging and shipping
We adopt the highest industry standards for protective packaging: all rods/plates are treated with anti-rust protection and reinforced with waterproof film and wooden crates; precision components are packaged with custom foam dividers and vacuum sealing. Through our proprietary logistics coordination system, we promise that standard specification products will be prepared and shipped within 7-15 working days after order confirmation and technical details are finalized.
