ASTM B163 Inconel 718 Marine Oil And Gas Pipe
Sizes: 15" to 150" (NB)
Wall thickness: 0.5 to 20 mm
As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.
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ASTM B163 Inconel 718 marine oil and gas pipe description
GNEE ASTM B163 Inconel 718 marine oil and gas pipe
ASTM B163 Inconel 718 marine oil and gas pipe is a high-strength, corrosion-resistant nickel-chromium alloy. Its ability to withstand extreme temperatures and pressures makes it an ideal choice for downhole tubing, wellhead components, and highly stressed valves in marine environments. Key features include high yield and tensile strength up to 1300°F, excellent resistance to a wide range of corrosive environments, including saltwater, and good weldability. For offshore and other applications where sour gas is a risk, a hardness of up to 40HRC per NACE standards is crucial to prevent stress corrosion cracking.
Common Applications in the Offshore Oil and Gas Industry
Downhole Equipment: Drill collars, mandrels, and packers used in extreme high-temperature and high-pressure environments.
Wellheads and Subsea Components: Its resistance to saltwater corrosion and pressure fluctuations makes it suitable for wellheads and other subsea hardware.
Valves, Flanges, and Fittings: Provides high strength and sealing in high-stress, corrosive environments.
Heat Exchangers and Pressure Vessels: Resists thermal fatigue and corrosion under fluctuating loads.
Flexible Risers, Flowlines, and Umbilicals: Its superior fatigue strength is critical to the continued operation of offshore systems.
Important Considerations for Offshore Applications
Hardness Control: To prevent stress corrosion cracking in sour gas environments, hardness must be controlled to a maximum of 40 HRC to meet the requirements of standards such as NACE MR-0175/ISO 15156.
Heat Treatment: The heat treatment process is critical to achieving the required mechanical properties within the hardness limits of the specific application.
Manufacturing: For some applications, a balance must be struck between achieving the highest yield strength and adhering to the maximum hardness limit.
Alloy 718 Seamless Tube Specification Format
| ASTM B163 Alloy 718 Tubing Standards | ASTM B163/ ASME SB163, ASTM B516/ ASME SB516 |
|---|---|
| ASTM B163 Alloy 718 Seamless Tube Size | 3.35 mm OD To 101.6 mm OD |
| ASTM B163 Alloy 718 Welded Tube Size | 6.35 mm OD To 152 mm OD |
| ASTM B516 inconel 718 Tubing Swg & Bwg | 10 Swg., 12 Swg., 14 Swg., 16 Swg., 18 Swg., 20 Swg. |
| Inconel WERKSTOFF NR. 2.4668 Tube wall thickness | 0.020" –0.220", (special wall thicknesses available) |
| Inconel UNS N07718 Tubing Length | Single Random, Double Random, Standard & Cut length Tube |
| Inconel WERKSTOFF NR. 2.4668 Tubing Finish | Polished, AP (Annealed & Pickled), BA (Bright & Annealed), MF |
| Form | 'U' bent, Hollow, Hydraulic, LSAW, Boiler, Straight Tube, Tube Coil, Round, Rectangular, Square Etc |
| Types of 718 Alloy Tubing | Seamless, ERW, EFW, Welded, Fabricated Tube / Tubing |
| 718 Alloy Tube End | Plain End, Beveled End, Treaded Tube |
| Marking | All ASTM B163 inconel 718 Tubing are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer's request.) |
| Application & uses of inconel 718 Tube | Oil Tube, Gas Tube, Fluid Tube, Boiler Tube, Heat exchanger Tube, |
ASTM B163 Inconel 718 marine oil and gas pipe Specification
718 Inconel pipe Material Equivalent Grade
| STANDARD | UNS | EN | WERKSTOFF NR. | JIS | GOST | BS | AFNOR |
| Inconel 718 | N07718 | – | 2.4668 | NCF 718 | – | – | – |
ASTM B163 Inconel 718 Tube Chemical Structure
| element | Minimum | Maximum |
| Si | - | 0.035 |
| C | - | 0.008 |
| P | - | 0.0015 |
| Ti | 0.065 | 1.015 |
| Mn | - | 0.035 |
| B | - | 0.06 |
| Al | 0.02 | 0.08 |
| Cr | 17 | 21 |
| Co | - | 1 |
| Fe | Balance | |
| Cu | - | 0.03 |
| Nb | 4.075 | 5.05 |
| Mo | 2.08 | 3.03 |
| Ni | 50 | 55 |
Inconel 718 Pipe Yield Strength
| Temper | Solution-treated | |
| Tensile Rm | 155 | ksi (minimum) |
| Tensile Rm | 1069 | MPa (minimum) |
| R.p. 0.2% Yield | 95 | ksi (minimum) |
| R.p. 0.2% Yield | 655 | MPa (minimum) |
| Elongation (2" or 4D gl) | 30 | % (minimum) |
ASTM B163 Inconel 718 Tube Sizes In Mm
| Wall Thickness | inconel 718 Tube Sizes ( O.D.) |
|---|---|
| .010 | 1/16" , 1/8" , 3/16" |
| .020 | 1/16" , 1/8" , 3/16" , 1/4" , 5/16" , 3/8" |
| .012 | 1/8" |
| .016 | 1/8" , 3/16" |
| .028 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 3/4" , 1" , 1 1/2" , 2" |
| .035 | 1/8" , 3/16" , 1/4" , 5/16" , 3/8" , 7/16" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .049 | 3/16" , 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/8" , 1 1/4" , 1 1/2" , 1 5/8" , 2" , 2 1/4" |
| .065 | 1/4" , 5/16" , 3/8" , 1/2" , 16" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 3/4" , 2" , 2 1/2" , 3" |
| .083 | 1/4" , 3/8" , 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 1 5/8" , 1 7/8" , 2" , 2 1/2" ,3" |
| .095 | 1/2" , 5/8" , 1" , 1 1/4" , 1 1/2" , 2" |
| .109 | 1/2" , 3/4" , 1" , 1 1/4" , 1 1/2" , 2" |
| .120 | 1/2" , 5/8" , 3/4" , 7/8" , 1" , 1 1/4" , 1 1/2" , 2" , 2 1/4" , 2 1/2" , 3" |
| .125 | 3/4" , 1" , 1 1/4" , 1 1/2" , 2" , 3" , 3 1/4" |
| .134 | 1" |
| .250 | 3" |
| .375 | 3 1/2" |
UNS N07718 Tube Wall Thickness
| Types of inconel 718 Tube | Out diameter (OD) | Wall thickness | Length |
|---|---|---|---|
| NB Sizes (in stock) | 1/8" ~ 8" | SCH 5 / SCH 10 / SCH 40 / SCH 80 / SCH 160 | Upto 6 Meters |
| inconel 718 Seamless Tube (Custom Sizes) | 5.0mm ~ 203.2mm | As per requirement | Upto 6 Meters |
| inconel 718 Welded Tube (in Stock + Custom Sizes) | 5.0mm ~ 1219.2mm | 1.0 ~ 15.0 mm | Upto 6 Meters |
Types of Inconel Alloy 600 Pipe
ASTM B163 UNS N07718 Welded Tube
ASTM B163 Alloy 718 Electropolished Tubes
ASTM B163 Alloy 718 Tube
ASTM B516 Inconel 718 Instrument Tubing
Inconel WERKSTOFF NR. 2.4668 Heat Exchanger Tubes
ASTM B163 Inconel 718 Exhaust Tubing
inconel NCF 718 Rectangular Tubing
Alloy 718 square Tube
Alloy 718 annealed Tube
ASTM B163 Inconel 718 marine oil and gas pipe Surface Treatments
Gnee Steel provides four surface treatments for Alloy ASTM B163 Inconel 718 marine oil and gas pipe: pickling, mirror polishing, polishing, and sandblasting.
ASTM B163 Inconel 718 marine oil and gas pipe production process
Gnee Steel provides the following heat treatments for ASTM B163 Inconel 718 marine oil and gas pipe: annealing, solution + aging. In addition, Gnee Steel also provides hot working and cold working, which are hot rolling and cold drawing.
ASTM B163 Inconel 718 marine oil and gas pipe Packaging
In order to better ensure the safety of your goods, we will provide professional, environmentally friendly, convenient and efficient packaging services.
About Gnee Steel
Gnee Steel specializes in the production and sale of various nickel-based alloys, including Nickel 201, Nickel 202, Hastelloy C-276, Hastelloy C-22, Hastelloy B, Hastelloy C-4, Inconel Alloy 600, Inconel 625, Inconel 718, Inconel X-750, Incoloy Alloy 800, Incoloy 800H/HT, Incoloy 825, Monel Alloy 400, Monel K500, and high-temperature alloys. Gnee Steel's products are widely used in aerospace, chemical, electric power, automotive, and nuclear energy applications. We also offer customized alloy solutions tailored to customer needs. For alloy pricing inquiries or customized alloy solutions, please contact us for a quote at ss@gneesteel.com.
FAQ
Q: What's the difference between Inconel 625 and 718?
A: Inconel 625 offers excellent corrosion resistance, making it an ideal choice for marine and chemical applications. Inconel 718, on the other hand, is favored for its exceptional strength and high-temperature performance, making it particularly suitable for aerospace and gas turbine engines. Inconel 718 is more difficult and expensive to machine, requiring more complex heat treatments to harden, but it offers higher tensile and yield strengths at elevated temperatures.
Q: What's the difference between Inconel 600 and 718?
A: Inconel 600 offers excellent corrosion resistance and formability, making it suitable for chemical processing and marine applications. Inconel 718, on the other hand, boasts exceptional high-temperature strength and creep resistance, making it a top choice for aerospace and oil and gas applications.
Q: What is the difference between INCONEL 718 and 725?
A: Inconel 718 has a Pitting Resistance Equivalent Number (PREN) exceeding 31, while Inconel 725 has a PREN exceeding 45, enabling it to operate in the harshest environments. Langley Alloys offers 725 alloy round bar in diameters from 1 inch to 4 inches (25.4 mm to 101.6 mm), and 718 alloy round bar in diameters from ½ inch to 10 inches (12.7 mm to 254 mm).
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