ASME SB338 Titanium Grade 2 Seamless Pipe Titanium Welded Pipe ASTM B337 Titanium ERW Pipe

ASTM B338 Gr2, Gr5, Gr7, 20 Titanium Seamless Pipes are excellent choices for demanding industrial applications due to their exceptional mechanical properties, outstanding corrosion resistance, and reliability under high-stress conditions. Let's explore each of these grades and how they cater to specific industrial needs.

1. ASTM B338 Gr2 Titanium Seamless Pipes:

Grade 2 is known as commercially pure titanium. It offers a balance of strength, formability, and corrosion resistance. Gr2 titanium is widely used when high strength is not as critical but resistance to corrosion and lightweight properties are essential.

Corrosion Resistance: Exceptional resistance to a wide range of corrosive environments, including saltwater, acidic conditions, and chlorine.

Applications: Typically used in chemical processing, marine applications, and aerospace, as well as medical devices and heat exchangers.

Advantages: Good for applications where corrosion resistance and biocompatibility are key, especially in non-critical high-pressure environments.

2. ASTM B338 Gr5 Titanium Seamless Pipes:

Grade 5 is an alloyed titanium with aluminum and vanadium. This is one of the most popular grades for high-strength applications due to its increased tensile strength compared to Grade 2.

Corrosion Resistance: While still highly resistant to corrosion, Gr5 titanium has superior strength and thermal stability, which make it suitable for demanding applications like aerospace and high-temperature environments.

Applications: Used extensively in aerospace, marine engineering, power generation, and chemical industries that require both strength and corrosion resistance.

Advantages: Excellent choice for applications that need high strength and resistance to fatigue and creep at elevated temperatures.

3. ASTM B338 Gr7 Titanium Seamless Pipes:

Grade 7 is a Grade 2 titanium alloy with palladium added, improving its resistance to corrosion, particularly in aggressive environments like hydrochloric acid, sulfuric acid, and other harsh chemical environments.

Corrosion Resistance: Outstanding resistance to corrosion, particularly in environments where other titanium grades may be compromised, making it ideal for chemical plants and refineries.

Applications: Best for chemical processing, pharmaceutical industries, and industries dealing with highly corrosive chemicals or high-temperature processing.

Advantages: Offers superior corrosion resistance compared to Grade 2, especially in chemical and acidic environments.

4. ASTM B338 Gr20 Titanium Seamless Pipes:

Grade 20 is an alloyed titanium that provides extra high strength, similar to Gr5 but with specific elements like molybdenum added. This grade is highly resistant to oxidation and creep resistance.

Corrosion Resistance: Excellent corrosion resistance in both neutral and acidic environments, making it suitable for harsh service conditions in industries such as petrochemical, marine, and aerospace.

Applications: Commonly used in high-performance applications, such as aerospace, chemical processing, offshore oil rigs, and nuclear plants where high temperature and stress resistance are needed.

Advantages: Ideal for applications where high strength, high temperature resistance, and corrosion resistance are required simultaneously.

Key Features of ASTM B338 Titanium Seamless Pipes (Gr2, Gr5, Gr7, Gr20):

1. Seamless Construction:

   • These pipes are made without any welded joints, which improves their strength, integrity, and ability to withstand pressure. The seamless nature makes them resistant to potential failures caused by welds or joints.

2. High Strength-to-Weight Ratio:

   • Titanium has a much higher strength-to-weight ratio than other metals, which makes it an excellent choice for industries requiring lightweight yet durable materials.

3. Corrosion Resistance:

   • Titanium's resistance to corrosion in aggressive environments such as seawater, acids, and chlorides is unmatched. This makes it particularly useful in marine, chemical, and medical industries.

4. Temperature and Oxidation Resistance:

   • Titanium alloys, especially Gr5 and Gr20, offer excellent performance in high-temperature environments, making them suitable for applications in aerospace and power generation.

5. Titanium Tube Sizes