Yuhong Group Co.,Ltd
Yuhong Holding Group Co.,LTD
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ASTM B983 NO7718 Nickel Alloy Seamless Tube Gas Nuclear Reactors Spacecraft
YUHONG GROUP deal with Austenitic Stainless Steel, Nickel Alloy Steel(Hastelloy , Monel, Inconel, Incoloy ) seamless and welded pipe and tube already more than 33 years, every year sell more than 80000 tons of steel pipe and tube. Our client already cover more than 70 countries, Like Italy, UK, Gernmany, USA, Canada, Chile, Colombia, Saudi Arabia, Korea, Singapore, Austrial, Poland, France ...
Overview
ASTM B983 UNS N07718 nickel alloy steel pipe smooth. Our group has the most advanced production and testing equipment. We can fully meet your requirements. According to strict standards, we produce seamless nickel alloy steel tubes always with the correct o . D. _ and w. T. _ tolerances. Nickel alloy seamless tubes have a very important place in the thermocouple and cable industry.
Our Inconel 718 nickel steel seamless tubes have good durability and longevity, which are the main characteristics that make our products stand out in the global market due to their sustainability at high temperatures and pressures. This product often leads to many industrial sectors around the world.
Chemical Composition of Astm B983 400 UNS NO7718
| Elements | Min.(≥) | Max.(≤) | Similar | Remarks |
|---|---|---|---|---|
| C | - | 0.03 | ||
| Cr | 17.0 | 21.0 | ||
| Mo | 2.80 | 3.30 | ||
| Ni | 50.0 | 55.0 | ||
| Al | 0.20 | 0.60 | ||
| Nb | 4.75 | 5.50 | ||
| Fe | - | Bal | ||
| Si | - | 0.35 | ||
| Mn | - | 0.35 | ||
| P | - | 0.015 | ||
| S | - | 0.015 | ||
| B | - | 0.006 |
Physical Properties of Astm B983 NO7718
| Property | Density kg/dm3 | Temperature T °C/F | Specific heat J / kgK | Thermal conductivity W/mK | Electric resistance µΩ·cm |
|---|---|---|---|---|---|
| 576 (≥) | 871 (≥) | 24 | 33 | 21 | Solution and Aging, Annealing, Ausaging, Q+T,etc |
| Temp. °C/°F | Creep strain limit (10000h) (Rp1,0) N/mm2 | Creep rupture strength (10000h) (Rp1,0) N/mm2 | - | - | - |
| 469 | 587 | 758 | - | - | - |
The characteristics of ASTM B983 NO7718
NO7718 has excellent strength at temperatures up to 816ºC. At higher temperatures, its strength is generally lower than that of other solid solution-reinforced alloys. At temperatures up to 980ºC, Inconel 625 has good oxidation resistance and shows good resistance to water corrosion, but its corrosion resistance is relatively average compared to other more capable corrosion resistant alloys.
Astm B165 400 UNS NO440 Application
Gas
Nuclear Reactors
Spacecraft
