Class 150 ASME B16.5 Titanium Gr2 Gr5 Gr7 Weld Neck Flanges Raised Face RF For

Product Specification

Class 150 ASME B16.5 Titanium Gr2 Gr5 Gr7 Weld Neck Flanges Raised Face RF For Pipeline Uses

1. ASME B16.5 Titanium Flanges

ASME B16.5 is a widely recognized standard developed by the American Society of Mechanical Engineers (ASME) for flanges and flanged fittings. This standard covers flanges for sizes 1/2 inch to 24 inches and pressure ratings from 150 to 2500 psi. Titanium flanges made in accordance with ASME B16.5 are used in applications where the exceptional corrosion resistance, strength, and lightweight properties of titanium are essential.

2. Specification for Class 150 Titanium Weld Neck Flange

Technical Parameters:

3. Advantages of Using Titanium Flanges 

Strong and Reliable Connection

• Enhanced Strength: The design of a weld neck flange, with its tapered neck that gradually transitions into the pipe, provides a strong, seamless connection. This tapering minimizes the stress concentration at the joint and ensures a smooth transfer of pressure and stresses from the pipe to the flange.
• No Stress Risers: Because of the continuous taper from the neck to the flange, the weld is less prone to the formation of stress risers, reducing the risk of failure under pressure.

Improved Leak Resistance

• Smooth Transition: The gradual transition of the weld neck flange ensures a smooth inner bore, which minimizes turbulence and reduces the likelihood of leaks. This smoothness is particularly important in high-pressure or high-temperature systems where leakage could have serious safety and operational consequences.
• Pressure Distribution: The design allows for better distribution of pressure, especially in critical applications where leaks would be hazardous or costly.

Ease of Maintenance

• Reusability: Weld neck flanges can be reused in many cases because the flange and pipe are welded together in a way that can be easily cut and re-welded if necessary. This is particularly valuable in systems where disassembly and reassembly might be required over the years.
• Less Likely to Fail: Due to the strong connection and high resistance to fatigue, weld neck flanges generally have a longer lifespan and require less frequent maintenance.

Versatility in Applications

• Variety of Pressure Ratings: Weld neck flanges come in various pressure ratings, making them suitable for a wide range of applications, from low-pressure to high-pressure systems.
• Adaptable to Different Sizes and Materials: They can be used in systems with different pipe sizes and materials, making them versatile for many industrial applications, including high-temperature, high-pressure, and corrosive environments.
• Variety of Welding Options: The design of the weld neck flange allows for different types of welding methods, such as butt welding or socket welding, depending on the specific requirements of the application.

Enhanced Durability in Harsh Environments

• Corrosion Resistance: Weld neck flanges are often manufactured from materials that are highly resistant to corrosion (e.g., stainless steel, alloy steels, or specialized coatings). This makes them ideal for use in harsh environments, including chemical plants, marine systems, and oil and gas pipelines.
• High-Temperature and High-Pressure Resistance: They can withstand high operating temperatures and pressures without compromising structural integrity, making them suitable for critical applications in power plants, refineries, and other industries where extreme conditions are common.

Reduces Fatigue and Stress

• Smooth Flow Path: The tapering design of the weld neck flange ensures that the pipe's stress and pressure are distributed evenly, reducing the risk of fatigue over time. This makes weld neck flanges ideal for high-stress applications where vibration, thermal expansion, or mechanical stress is a concern.
• Eliminates Stress Concentration: Unlike other flanges that might have sharp corners or abrupt transitions, weld neck flanges eliminate stress concentration points, making the connection more durable under fluctuating loads and conditions.

 Better Alignment and Fit

• Precision Alignment: The design of the weld neck flange ensures that the pipe and the flange align precisely, which results in a more accurate and stronger weld. This reduces the chance of alignment issues during installation and ensures a better overall seal.

4. Different Titanium Grade

Commercially Pure (CP) Titanium Grades

Commercially pure titanium grades are those that contain a minimal amount of other elements. These grades have excellent corrosion resistance, but their strength is lower than that of titanium alloys. They are commonly used in applications where corrosion resistance is the primary concern

Grade 1 (CP-1):

• Composition: ~99.5% pure titanium, with small amounts of oxygen, iron, carbon, and other impurities.
• Properties: Excellent corrosion resistance, high ductility, and formability. This grade is the softest and most malleable of the commercially pure titanium grades.
• Applications: Marine environments, chemical processing, and applications requiring high corrosion resistance and low strength.

Grade 2 (CP-2):

• Composition: ~99.2% pure titanium.
• Properties: Offers a balance of corrosion resistance and strength. It is the most widely used grade of commercially pure titanium and is stronger than Grade 1.
• Applications: Chemical processing, marine, and medical applications. It's also used in pressure vessels, heat exchangers, and tanks in aggressive environments.

Grade 3 (CP-3):

• Composition: ~99% pure titanium.
• Properties: Higher strength than Grade 2, but still offers good corrosion resistance and formability. It is more resistant to stresses and fatigue compared to lower grades.
• Applications: Chemical and petrochemical processing, aerospace components, and other high-strength, corrosion-resistant applications.

Grade 4 (CP-4):

• Composition: ~98.5% pure titanium.
• Properties: The highest strength among the commercially pure titanium grades, but still maintains excellent corrosion resistance. It is less formable than the lower grades.
• Applications: High-strength applications like marine, aerospace, and chemical processing where both strength and corrosion resistance are required.

Titanium Alloys

Titanium alloys are typically stronger than commercially pure titanium and are produced by adding alloying elements such as aluminum, vanadium, molybdenum, and others. These alloys are used in demanding applications where higher strength, better wear resistance, and other mechanical properties are necessary.

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

• Composition: 90% titanium, 6% aluminum, 4% vanadium.
• Properties: This is the most commonly used titanium alloy due to its high strength, excellent corrosion resistance, and good weldability. It has better strength than pure titanium and retains good formability.
• Applications: Aerospace, automotive, medical implants (like joint replacements), and marine applications.

Grade 9 (Ti-3Al-2.5V):

• Composition: 90.5% titanium, 3% aluminum, 2.5% vanadium.
• Properties: This alloy is stronger than pure titanium and has good weldability. It is used in applications where a combination of strength and corrosion resistance is needed, but the alloy is lighter and more ductile than Grade 5.
• Applications: Aerospace, automotive, and industrial applications, including tubing, frames, and high-strength components.

Grade 12 (Ti-0.3Mo-0.8Ni):

• Composition: 88.3% titanium, 0.3% molybdenum, 0.8% nickel.
• Properties: Grade 12 offers a balance between the corrosion resistance of pure titanium and the strength of titanium alloys. It also has good weldability and is particularly resistant to aggressive chemical environments.
• Applications: Chemical processing, power generation, and marine environments, particularly where resistance to both corrosion and stress is important.

Grade 23 (Ti-6Al-4V ELI):

• Composition: 90% titanium, 6% aluminum, 4% vanadium (extra low interstitial).
• Properties: This is a variant of Grade 5 with lower levels of oxygen and other impurities, which improves its fracture toughness and fatigue strength. It is particularly beneficial for applications requiring high strength and low interstitials.
• Applications: Medical implants (such as hip and knee replacements), aerospace, and high-performance industrial applications.

Grade 7 (Ti-0.15Pd):

• Composition: 99% titanium with 0.12-0.25% palladium.
• Properties: Grade 7 combines the corrosion resistance of Grade 2 with enhanced resistance to corrosion in aggressive environments, particularly in acids. The addition of palladium makes it more resistant to stress corrosion cracking and improves its weldability.
• Applications: Chemical and petrochemical processing, particularly in hydrochloric acid and other corrosive environments.

Grade 11 (Ti-0.3Pd):

• Composition: 99% titanium with 0.12-0.25% palladium.
• Properties: Similar to Grade 7 but with a slightly different palladium content, providing excellent corrosion resistance and improved formability.
• Applications: Used in severe chemical environments, especially in the production of chlor-alkali products and other industries where corrosion resistance is paramount.

5. Applications

The LHTi Titanium flange is designed to withstand high temperatures and pressures, making it highly reliable for different applications. It is made of high-quality Titanium material that is resistant to corrosion and offers high strength. The surface treatment of the product includes polishing, sandblasting, anodizing, and more, making it durable and long-lasting.

The product comes with a minimum order quantity of 1 piece, and it is available at a price range of $35 to $125. It is packaged in a wooden package for safe delivery and has a delivery time of 10 days. Payment terms for the product include T/T, L/C, and other options.

The LHTi Titanium flange is suitable for different application scenarios, which include:

• Pipeline: The product is used in pipeline applications, including oil and gas pipelines, water pipelines, and more. It helps to connect different sections of the pipeline, ensuring the smooth flow of fluids.
• Petroleum: The LHTi Titanium flange is used in the petroleum industry for different applications, including refining, drilling, and more. It is suitable for use in high-temperature and high-pressure environments, making it highly reliable.
• Chemical: The product is used in the chemical industry for different applications, including processing, transportation, and more. It is resistant to corrosion, making it suitable for use in corrosive environments.

The LHTi Titanium flange is highly reliable and suitable for different applications. It offers high strength and durability, making it a cost-effective solution for different industries. With a supply ability of 10000, the product is readily available to meet the needs of different customers.