Inconel Alloy 725 Seamless Pipe
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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Gnee Super Alloy (Tianjin) Co., Ltd. is one of the most professional manufacturers and suppliers of inconel alloy 725 seamless pipe in China. If you're going to wholesale high quality inconel alloy 725 seamless pipe made in China, welcome to get free sample from our factory. Good service and reasonable price are available.
Alloy 725 was developed from Alloy 625 by adding strengthening elements to enhance its mechanical properties. The properties of Nickel alloy 725 are useful for a wide range of applications that require outstanding corrosion resistance along with high strength. The alloy is used in sour gas service where it resists the effects of hydrogen sulfide, chlorides and carbon dioxide.
Alloy 725 is also attractive for high strength fasteners in marine applications, where it resists corrosion, pitting and crevice attack in sea water.
Chemical Composition
The following table shows the chemical composition of Inconel 725™.
| Elements | Content (%) |
| Nickel, Ni | 55 – 59 |
| Chromium, Cr | 19 – 22.5 |
| Iron, Fe | 9 |
| Molybdenum, Mo | 7 – 9.50 |
| Niobium, Nb (Columbium, Cb) | 2.75 – 4 |
| Titanium, Ti | 1 – 1.70 |
| Aluminum, Al | 0.35 |
| Manganese, Mn | 0.35 |
| Silicon, Si | 0.20 |
| Carbon, C | 0.030 |
| Phosphorous, P | 0.015 |
| Sulfur, S | 0.010 |
Physical Properties
The physical properties of Inconel 725™ are given in the following table.
| Properties | Metric | Imperial |
| Density | 8.3 g/cm³ | 0.3 lb/in³ |
| Melting point | 1271-343ºC | 2320-2449ºF |



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