What kind of special material will use in oil & Gas CNC machined parts?
CNC machined parts used in the oil and gas industry require special materials that can withstand high-pressure, high-temperature, and corrosive environments. Here are some of the special materials commonly used in oil and gas CNC machined parts along with their material codes:
Inconel is a family of nickel-chromium-based superalloys that are known for their excellent resistance to corrosion, high temperature, and high-pressure environments. Inconel 625 is the most commonly used Inconel alloy in the oil and gas industry.
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Monel is a nickel-copper alloy that offers excellent resistance to corrosion and high-temperature environments. It is often used in oil and gas applications where seawater is present.
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Hastelloy is a family of nickel-based alloys that offer excellent resistance to corrosion and high-temperature environments. Hastelloy C276 is commonly used in oil and gas applications where resistance to harsh chemicals is required, while Hastelloy C22 is often used in sour gas applications.
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Duplex stainless steel is a type of stainless steel that has a two-phase microstructure, consisting of both austenitic and ferritic phases. This combination of phases provides excellent corrosion resistance, high strength, and toughness, making it ideal for use in oil and gas applications.
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Titanium is a lightweight and corrosion-resistant metal that is often used in oil and gas applications that require a high strength-to-weight ratio. Grade 5 titanium is the most commonly used titanium alloy in the oil and gas industry.
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Carbon steel is a type of steel that contains carbon as the main alloying element. AISI 4130 is a low-alloy steel that offers good strength and toughness, making it suitable for use in oil and gas applications where high strength is required.
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When selecting a material for oil and gas CNC machined parts, it is important to consider the specific application requirements, such as pressure, temperature, and corrosion resistance. The material must be chosen carefully to ensure that the part can withstand the expected loads and environmental conditions and provide reliable performance over the intended service life.
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Oil Normal Material |
Oil Material code |
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Nickel Alloy |
AGED 925,INCONEL 718(120,125,150,160 KSI),NITRONIC 50HS,MONEL K500 |
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Stainless Steel |
9CR,13CR,SUPER 13CR,410SSTANN,15-5PH H1025,17-4PH(H900/H1025/H1075/H1150) |
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Non-magnetic Stainless Steel |
15-15LC,P530,Datalloy 2 |
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Alloy Steel |
S-7,8620,SAE 5210,4140,4145H MOD,4330V,4340 |
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Copper Alloy |
AMPC 45,TOUGHMET,BRASS C36000,BRASS C26000,BeCu C17200,C17300 |
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Titanium Alloy |
C.P. TITANIUM GR.4,Ti-6AI-4V, |
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Cobalt-base Alloys |
STELLITE 6,MP35N |
What kind of special material will use in oil & Gas CNC machined parts?
Special threads used in oil and gas CNC machined parts must be designed to meet the specific demands of the application, such as high pressure, high temperature, and harsh environmental conditions. The most commonly used threads in the oil and gas industry include:
API Buttress threads have a square thread form with a 45-degree load flank and a 5-degree stab flank. They are designed for high-torque applications and can withstand high axial loads. API Round threads have a rounded thread form and are used for threaded connections that require frequent make and break cycles. API Modified Round threads have a slightly rounded thread form with a modified lead angle. They are used in applications that require improved fatigue resistance.
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Premium threads are proprietary thread designs that are used in high-pressure, high-temperature applications. Examples include VAM, Tenaris Blue, and Hunting XT threads. These threads typically have a tapered thread form that provides a tight seal and high resistance to galling and corrosion. They also often have a metal-to-metal seal that enhances their sealing performance.
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Acme threads have a trapezoidal thread form with a 29-degree included thread angle. They are commonly used in applications that require high torque capacity and axial load capacity. Acme threads are often used in downhole drilling tools, as well as in hydraulic cylinders and lead screws.
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Trapezoidal threads have a trapezoidal thread form with a 30-degree included thread angle. They are similar to Acme threads but have a different thread angle. Trapezoidal threads are commonly used in applications that require high torque capacity and axial load capacity.
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Buttress threads have a square thread form with one side having a 45-degree thread angle and the other side having a flat surface. They are commonly used in applications that require high axial load capacity and resistance to fatigue failure. Buttress threads are often used in wellheads, pipelines, and valves.
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Regenerate response
When selecting a thread for oil and gas CNC machined parts, it is important to consider the specific application requirements and choose a thread that can withstand the expected loads and environmental conditions. It is also important to ensure that the thread is manufactured to the appropriate standards and specifications to ensure compatibility with other components in the system.
Here some special thread for reference:
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Oil Thread Type |
Oil Special Surface Treatment |
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UNRC Thread |
Vacuum electron beam welding |
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UNRF Thread |
Flame sprayed (HOVF) nickel tungsten carbide |
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TC Thread |
Copper Plating |
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API Thread |
HVAF (High Velocity Air Fuel) |
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Spiralock Thread |
HVOF (High Velocity Oxy-Fuel) |
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Square Thread |
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Buttress Thread |
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Special Buttress Thread |
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OTIS SLB Thread |
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NPT Thread |
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Rp(PS)Thread |
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RC(PT)Thread |
What kind of special surface treatment will use in oil & Gas CNC machined parts?
Surface treatment of CNC machined parts is an important aspect of ensuring their functionality, durability, and longevity in the harsh conditions of the oil and gas industry. There are several types of surface treatments that are commonly used in this industry, including:
Coatings such as nickel plating, chrome plating, and anodizing can provide enhanced corrosion resistance to the machined parts. These coatings can also improve the wear resistance and lubricity of the parts.
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Passivation is a process used to remove impurities and contaminants from the surface of the machined parts. This process creates a protective layer on the surface of the part, which enhances its corrosion resistance.
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Shot peening is a process that involves bombarding the surface of the machined parts with small metal beads. This process can increase the surface hardness of the parts, reduce the risk of fatigue failure, and improve their resistance to corrosion.
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Electropolishing is a process that involves using an electric current to remove a thin layer of material from the surface of the machined parts. This process can improve the surface finish of the parts, reduce the risk of stress corrosion cracking, and improve their resistance to corrosion.
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Phosphating is a process that involves coating the surface of the machined parts with a layer of phosphate. This process can improve the adhesion of paints and other coatings, as well as provide enhanced corrosion resistance.
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It is important to select the appropriate surface treatment based on the specific application and operating conditions of the CNC machined parts in the oil and gas industry. This will ensure that the parts are able to withstand the harsh conditions and perform their intended function effectively and efficiently.
HVAF (High-Velocity Air Fuel) &HVOF (High-Velocity Oxygen Fuel)
HVAF (High-Velocity Air Fuel) and HVOF (High-Velocity Oxygen Fuel) are two advanced surface coating technologies that are commonly used in the oil and gas industry. These techniques involve heating a powdered material and accelerating it to high velocities before depositing it onto the surface of the machined part. The high velocity of the powder particles leads to a dense and tightly adherent coating that offers superior resistance to wear, erosion, and corrosion.
HVOF
HVAF
HVAF and HVOF coatings can be used to improve the performance and lifespan of CNC machined parts in the oil and gas industry. Some of the benefits of HVAF and HVOF coatings include:
1. Corrosion Resistance: HVAF and HVOF coatings can provide excellent corrosion resistance to machined parts used in the harsh environments of the oil and gas industry. These coatings can protect the surface of the parts from exposure to corrosive chemicals, high temperatures, and high pressures.
2. Wear Resistance: HVAF and HVOF coatings can provide superior wear resistance to machined parts used in the oil and gas industry. These coatings can protect the surface of the parts from wear due to abrasion, impact, and erosion.
3. Improved Lubricity: HVAF and HVOF coatings can improve the lubricity of machined parts used in the oil and gas industry. These coatings can reduce friction between moving parts, which can lead to improved efficiency and reduced wear.
4. Thermal Resistance: HVAF and HVOF coatings can provide excellent thermal resistance to machined parts used in the oil and gas industry. These coatings can protect the parts from thermal shock and thermal cycling, which can lead to cracking and failure.
5. In summary, HVAF and HVOF coatings are advanced surface coating technologies that can provide superior protection to CNC machined parts used in the oil and gas industry. These coatings can improve the performance, durability, and lifespan of the parts, leading to improved efficiency and reduced maintenance costs.