ASTM A350 LF2 Blind Flanges

SA350 LTCS LF2 BLFF Flange Manufacturer in India

Blind flanges cap off or seal a pipe, valve, or fitting outlet. They can be made with various materials, but one type that stands out is the ASTM A350 LF2 carbon steel blind flange. This flange is known for its strength and durability, making it a popular choice for many industries. The ASTM A350 LF2 Carbon Steel Blind Flange has several types, depending on the materials used and its design. Some of these types are raised face (RF), flat face (FF), ring type joint (RTJ), and lap joint (LJ). The RF type has a flat surface with a raised ring around the bore, while the FF type has a flat surface without any raised ring. The RTJ type has a groove that accommodates a metal ring and is used in high-pressure and high-temperature applications. The LJ type consists of a backing flange and a blind flange joined by a lap joint.


The ASTM A350 LF2 Carbon Steel Blind Flange is used in many industries, including oil and gas, chemical, and power generation. It is commonly used to cap off or seal valves, pipes, or fittings that are not in use, preventing leakage and contamination. This flange is also used in high-pressure and high-temperature applications, making it suitable for pipelines that carry flammable or hazardous substances.


The ASTM A350 LF2 carbon steel blind flange offers several benefits for its users. First, it has excellent strength and durability, making it suitable for harsh environments. Its corrosion-resistant properties also make it ideal for use in industries where exposure to moisture and chemicals is common. Additionally, it is easy to install and requires minimal maintenance, reducing downtime and overall costs.
The ASTM A350 LF2 carbon steel blind flange is made through a forging process. Forging involves shaping a piece of metal by hammering or pressing it under high pressure to achieve the desired shape and size. This process creates a dense and uniform material with minimal porosity, producing a strong and reliable product.


The ASTM A350 LF2 carbon steel blind flange is an excellent choice for many industries due to its strength, durability, and corrosion-resistant properties. It comes in several types, each with its unique features and applications. This flange caps off or seals valves, pipes, or fittings in high-pressure and high-temperature applications. Its manufacturing process ensures a uniform and reliable product that is easy to install and requires minimal maintenance.



Specification of A350 Carbon Steel LF2 Blind Flanges

Spec bag
Blind Flange

Specifications: ASTM A350 / ASME SA350

Dimensions: ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard: ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size: 1/4" - 48"

Class/Pressure:150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type: flat face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Types of A350 Carbon Steel LF2 Blind Flanges

ASTM A350 CS LF2 Flat Face Blind Flanges

CS ASTM A350 LF2 Flat Face Blind Flanges

A350 LTCS LF2 Raised Face Blind Flanges

CS ASTM A350 LF2 Raised Face Blind Flanges


The pressure ratings of CS ASTM A350 LF2 Blind Flanges depend on the size, temperature, & class rating. They are typically available in various pressure classes, such as 150, 300, 600, 900, 1500, & 2500, to suit different system requirements.

CS ASTM A350 LF2 Blind Flange is primarily designed for low-temperature service and may not be suitable for high-temperature applications. It is important to consider the specific temperature limits of this flange material & consult the relevant standards and codes to ensure its compatibility with the intended operating conditions.

CS ASTM A350 LF2 Blind Flanges are available in a wide range of sizes, typically ranging from 1/2 inch to 48 inches or larger.