Sand Blasting Slip On Flange PN16 Ti Gr2 Gr5 Gr7 Raised Face RF for Oil and Gas Pipelines

2. Grades of DIN 86030 Titanium Hubbed Slip On Flange

1. Titanium Grade 2 (Ti-CP):

   Composition: Commercially pure titanium with a composition of 99.2% titanium, 0.25% iron, 0.3% oxygen, and trace amounts of other elements.

   Properties:

   Strength: Relatively low compared to alloys; higher than many steels but lower than alloyed titanium grades.

   Corrosion Resistance: Excellent in most environments, especially against chlorides.

   Weldability: Good weldability and fabricability.

   Applications: Chemical processing, marine environments, medical implants (non-load-bearing), and architecture.

    

   Titanium Grade 5 (Ti-6Al-4V):

   Composition: Titanium alloy containing 90% titanium, 6% aluminum, and 4% vanadium.

   Properties:

   Strength: Excellent strength-to-weight ratio, superior to Grade 2 titanium.

   Corrosion Resistance: Good corrosion resistance, not as high as Grade 2 but suitable for many environments.

   Temperature Resistance: Maintains strength at elevated temperatures, making it suitable for aerospace and high-performance applications.

   Applications: Aerospace components (airframes, jet engines), marine equipment, medical implants, automotive components, and sports equipment.

    

   Titanium Grade 7 (Ti-0.15Pd):

   Composition: Titanium alloy with 0.15% palladium added.

   Properties:

   Corrosion Resistance: Excellent resistance to corrosion, particularly in reducing environments.

   Weldability: Good weldability, suitable for welding and fabrication.

   Strength: Lower strength compared to Grade 5 but adequate for many applications.

   Applications: Chemical processing, desalination plants, marine environments, and other applications requiring superior corrosion.

   Chemical requirements
   	N	C	H	Fe	O	Al	V	Pd	Mo	Ni	Ti
   Gr1	0.03	0.08	0.015	0.20	0.18	/	/	/	/	/	bal
   Gr2	0.03	0.08	0.015	0.30	0.25	/	/	/	/	/	bal
   Gr5	0.05	0.08	0.015	0.40	0.20	5.5~6.75	3.5~4.5	/	/	/	bal
   Gr7	0.03	0.08	0.015	0.30	0.25	/	/	0.12~0.25	/	/	bal
   Gr12	0.03	0.08	0.015	0.30	0.25	/	/	/	0.2~0.4

3. Specifications for DIN 86030 Titanium Hubbed Slip On Flange

4. Advantages of DIN86030 Titanium Hubbed Slip On Flanges:

The DIN 86030 Titanium Hubbed Slip-On Flanges offer several advantages, making them a preferred choice for various industrial applications:

Corrosion Resistance: Titanium is highly resistant to corrosion in a wide range of aggressive environments, including seawater, acids, and chlorides. This corrosion resistance ensures longevity and reliability in challenging conditions, such as marine environments and chemical processing plants.

High Strength-to-Weight Ratio: Titanium possesses a remarkable strength-to-weight ratio, which is superior to many other metals like steel. This property makes DIN 86030 flanges suitable for applications where reducing weight without compromising strength is critical, such as aerospace and high-performance engineering.

Durability: Titanium is known for its exceptional durability and resistance to wear and tear. DIN 86030 flanges made from titanium can withstand high pressures and temperatures, making them reliable in demanding industrial processes.

Biocompatibility: Titanium is biocompatible and non-toxic, making it suitable for applications in medical equipment and devices where contact with the human body is necessary. This property expands its usability beyond industrial settings into healthcare and biomedical fields.

Ease of Installation: Slip-on flanges are easier to align and weld compared to other types of flanges, reducing installation time and labor costs. The hubbed design of DIN 86030 flanges provides additional welding surface area, ensuring a secure and robust connection between the flange and the pipe.

Versatility: DIN 86030 Titanium Hubbed Slip-On Flanges find applications across various industries, including chemical processing, oil and gas, aerospace, marine, and biomedical sectors. Their versatility stems from titanium’s unique combination of properties, allowing them to perform well in diverse and demanding environments.

5. The Product Process of DIN 86030 Titanium Hubbed Slip On Flanges:

Material Selection:

Titanium Alloy: The process begins with selecting the appropriate titanium alloy based on the application requirements. Common alloys include Grade 2 (Ti-CP), Grade 5 (Ti-6Al-4V), and Grade 7 (Ti-0.15Pd), chosen for their specific mechanical properties, corrosion resistance, and other relevant characteristics.

Cutting and Forming:

Raw Material Preparation: Titanium billets or bars are cut into suitable lengths based on the required flange dimensions.

Forging or Rolling: The titanium material is heated to an optimal temperature and shaped using forging or rolling techniques to form the initial flange blanks. For weld neck flanges, this includes forming the neck and the flange face.

Machining:

Turning and Milling: The forged or rolled titanium blanks undergo precision machining operations. This includes turning to achieve the desired outer diameter (OD) and milling to create the flange face (raised face, flat face, or ring type joint per ASME B16.5 specifications).

Drilling: Holes are drilled into the flange to accommodate bolts and ensure proper alignment with the connecting pipes.

Weld Preparation:

Beveling: The ends of the weld neck flange, especially the area where it connects to the pipe, are beveled to facilitate welding. Proper beveling ensures strong weld joints and effective fusion.

Welding:

Welding Process: Titanium weld neck flanges are typically welded using TIG (Tungsten Inert Gas) welding or similar methods suitable for titanium alloys. Welding is performed with care to maintain a shielded atmosphere (argon or helium) to prevent contamination and oxidation, which can compromise the titanium's corrosion resistance.

Weld Inspection: Post-weld inspection includes non-destructive testing (NDT) methods such as dye penetrant testing or ultrasonic testing to verify the integrity of the welds.

Heat Treatment (if required):

Annealing: Depending on the titanium alloy and specific requirements, annealing or stress-relieving heat treatment may be applied to optimize material properties and reduce residual stresses.

Final Inspection and Testing:

Dimensional Inspection: Each weld neck flange undergoes rigorous dimensional checks to ensure it meets precise tolerances and specifications, including those set by ASME B16.5.

Visual and Surface Inspection: Visual inspections ensure there are no surface defects or imperfections that could affect performance or integrity.

Pressure Testing: Hydrostatic or pneumatic pressure testing may be conducted to verify the flange's pressure integrity and leak resistance under specified conditions.

Surface Treatment and Finishing:

Surface Coating: Depending on the application, surface treatments such as passivation or anodizing may be applied to further enhance corrosion resistance or improve surface finish.

Marking and Identification: Each flange is marked with essential information such as material grade, size, pressure class, and manufacturer identification for traceability.

Packaging and Shipping:

Once inspections and testing are completed satisfactorily, the titanium weld neck flanges are carefully packaged to prevent damage during transport and storage. They are then shipped to customers or distribution centers.

6. Standards of Titanium Hubbed Slip On Flange

AFNOR NF E29-200-1: French standard for flanges, including titanium flanges.

ASME ANSI B16.5: American Society of Mechanical Engineers (ASME) standard for pipe flanges and flanged fittings. It covers titanium flanges used in North America and internationally.

AWWA C207: American Water Works Association (AWWA) standard for steel pipe flanges for waterworks service, including titanium flanges used in water treatment applications.

BS1560, BS 4504, BS 10: British standards for pipe flanges and bolting, including titanium materials.

ISO7005-1: International Organization for Standardization (ISO) standard for metallic flanges, including titanium flanges.

MSS SP 44: Manufacturer's Standardization Society (MSS) of the Valve and Fittings Industry standard for steel pipeline flanges. It includes titanium flanges.

AS2129: Australian standard for flanges, including titanium flanges.

CSA Z245.12: Canadian standard for steel pipe flanges, including titanium materials.

DIN2573, DIN2576, DIN2501, DIN2502: German standards (DIN) for flanges, covering various types and dimensions of titanium flanges.

EN1092-1, EN1759-1: European standards (EN) for flanges, including titanium flanges.

JIS B2220: Japanese Industrial Standards (JIS) for steel pipe flanges, including titanium flanges.

UNI 2276, UNI 2277, UNI 2278, UNI 6089, UNI 6090: Italian standards (UNI) for pipe flanges, including titanium materials.

7. Different Face Types Of Titanium Plate Flanges:

Raised Face (RF) Flange:

1. Design:

   • Raised Surface: A Raised Face flange has a small portion around the bore drilled slightly larger than the pipe's diameter. This creates a ridge (or raised face) above the flange's surface.
   • Sealing Surface: The raised face serves as the primary sealing surface where the gasket rests. It provides a tight seal when compressed against the mating flange.

2. Advantages:

   • Enhanced Sealing: The raised face design concentrates the gasket compression into a smaller area, improving the effectiveness of the seal.
   • Protection: The raised face helps protect the flange surface from damage during handling and installation.

3. Applications:

   • Common: Raised Face flanges are more common in standard industrial applications where a reliable and leak-free seal is essential.
   • Pressure Ratings: Suitable for higher pressure applications as the raised face allows for better compression of the gasket.

Flat Face (FF) Flange:

1. Design:

   • Smooth Surface: Flat Face flanges have a flat or smooth surface without any protrusions or raised areas around the bore.
   • Sealing Surface: The sealing is achieved by placing the gasket directly on the flat surface of the flange.

2. Advantages:

   • Ease of Alignment: Flat Face flanges are easier to align during assembly because there are no raised surfaces to contend with.
   • Space Saving: They require less space compared to Raised Face flanges, which may be advantageous in tight installations.

3. Applications:

   • Specialized: Flat Face flanges are typically used in low-pressure and non-critical applications where sealing requirements are less stringent.
   • Special Gaskets: May require special gaskets (such as full-face gaskets) that cover the entire face of the flange to ensure proper sealing.

Choosing Between Raised Face and Flat Face:

• Pressure and Sealing Requirements: Raised Face flanges are preferred for higher pressure applications where a reliable seal is critical. Flat Face flanges are suitable for lower pressure applications or where space constraints are a concern.

• Gasket Selection: The choice of gasket (such as ring-type or full-face) depends on the flange facing type (RF or FF) and the application requirements for sealing integrity.

8. Titanium Hubbed Slip On Flange Inspections

Visual Testing (VT): This involves inspecting the surface of the weld and the flange visually to detect any visible defects such as cracks, porosity, or improper weld profiles.

Ultrasonic Testing (UT): This technique uses high-frequency sound waves to detect internal defects within the material, such as voids, inclusions, or cracks. It's particularly useful for thicker sections of titanium welds.

Radiographic Testing (RT): This method uses X-rays or gamma rays to produce images of the internal structure of the weld and flange. It's effective for detecting internal defects and assessing weld quality.

Magnetic Particle Testing (MT): MT is used to detect surface and near-surface defects in ferromagnetic materials. However, since titanium is not ferromagnetic, this method might not be applicable unless there are magnetic materials nearby or coatings that can be magnetized.

Penetrant Testing/Dye Penetrant (PT): PT involves applying a dye penetrant to the surface of the weld and then removing excess dye to reveal surface-breaking defects. This method is useful for detecting small cracks, porosity, and leaks.

Eddy Current Testing (ET): ET uses electromagnetic induction to detect surface and near-surface defects in conductive materials like titanium. It's useful for detecting corrosion, cracks, and variations in material properties.

Acoustic Emission (AE): AE involves monitoring the acoustic emissions from a material under stress to detect changes indicative of defects like cracks or leaks. It can be used for both weld and base material inspection.

Environmental Protection: Titanium's resistance to corrosion and chemicals makes it useful in environmental protection applications such as wastewater treatment plants and pollution control systems.