Knowde Enhanced TDS
Identification & Functionality
- Technologies
- Chemical Composition
Depending on the use conditions, narrower analysis limits apply to certain alloy elements. This is true in particular for carbon and niobium, but to lesser extent also for aluminum and titanium. The purpose of this limitation is to optimize the structure and mechanical properties with regard to the intended use. VDM® Powder 718 CTP is characterized by limited levels of carbon and niobium that conform better to the requirements of corrosive use conditions. VDM® Powder 718 CTP contains low amounts of oxygen of up to 0.03 %.
Features & Benefits
- Labeling Claims
- Base Chemicals Features
- Features
VDM® Powder 718 CTP is characterized by:
- Spherical particles
- High purity
- Low oxygen conten
- Excellent resistance to stress corrosion cracking and pitting in chloride-containing media
- Excellent resistance to stress corrosion cracking and sulfide stress cracking in sour (H2S-containing) oilfield en-vironments
- Corrosion Resistance
As a result of the high chromium and molybdenum concentrations, conventionally manufactured VDM® Alloy 718 CTP has very good general corrosion resistance and pitting corrosion resistance in many environments. By virtue of its high nickel content, it also has good resistance against stress corrosion.
Applications & Uses
- Markets
- Applicable Processes
- Base Chemicals End Uses
- Applications
Due to its excellent corrosion resistance and its good workability, VDM® Powder 718 CTP is versatile in use in the oil and gas industry, in the offshore industry and in marine engineering. The conventionally manufactured VDM® Alloy 718 CTP has proven itself well, especially for oilfield completion equipment in very demanding environments containing H2S, CO2, and high chlorides. The alloy has also proven itself for highly stressed oilfield components.
Properties
- Chemical Properties
- Physical Properties
- Microstructural Properties
VDM® Powder 718 CTP has an austenitic microstructure with multiple phases. By means of different heat treatments, graduated mechanical properties of the material can be achieved. The excellent mechanical properties of VDM® Powder 718 CTP result from the γ‘‘-formation during the precipitation hardening.
| Value | Units | Test Method / Conditions | |
| Aluminum Content | 0.40 - 0.60 | wt. % | — |
| Boron Content | max. 0.0060 | wt. % | — |
| Bismuth Content | max. 0.00005 | wt. % | — |
| Carbon Content | max. 0.045 | wt. % | — |
| Cobalt Content | max. 1.00 | wt. % | — |
| Chromium Content | 17.0 - 21.0 | wt. % | — |
| Copper Content | max. 0.23 | wt. % | — |
| Manganese Content | max. 0.35 | wt. % | — |
| Molybdenum Content | 2.80 - 3.30 | wt. % | — |
| Nb + Ta | 4.87 - 5.20 | wt. % | — |
| Nickel Content | 50 - 55 | wt. % | — |
| Phosphorus Content | max. 0.010 | wt. % | — |
| Lead Content | max. 0.0010 | wt. % | — |
| Sulfur Content | max. 0.010 | wt. % | — |
| Selenium Content | max. 0.0005 | wt. % | — |
| Silicon Content | max. 0.35 | wt. % | — |
| Titanium Content | 0.80 - 1.15 | wt. % | — |
| Value | Units | Test Method / Conditions | |
| Density (20°C) | max. 8.26 | g/cm³ | — |
| Melting Range | 1,270 - 1,340 | °C | — |
Regulatory & Compliance
- Designations and Standards
Standard Material designation
EN 2.4668 - NiCr19Fe19Nb5Mo3
ISO NiCr19Nb5Mo3 UNS N07718 AFNOR NC19FeNb
Packaging & Availability
- Availability
According to the AM process requirements of our customers, VDM® Powder 718 is available in a wide range of particle fractions from 15 to 250 μm.
Standard particle fractions
Particle size distribution
[μm]Oxygen content
%Porosity < 10μ (pore area)
%15-53 < 0.03
< 0.5
53-150