JIS B2220 SS Plate Flanges Raised Face/Flat Face Stainless Steel Plate Flange

Product Specification

JIS B2220 SS Plate Flanges 63K Steel Flange Plate Raised Face and Flat Face Stainless Steel Plate Flange for Water Treatments in the Industry

Introduction of JIS B2220 Stainless Steel Flanges:

JIS B2220 Stainless Steel Flanges are integral components in piping systems designed to meet Japanese Industrial Standards, ensuring robust performance and reliability in demanding industrial environments. These flanges are manufactured from high-quality stainless steel grades such as 304, 316, and 316L, chosen for their superior corrosion resistance and durability.

The standard encompasses various types of flanges including slip-on, blind, socket weld, weld neck, and lap joint, each tailored to specific application requirements. Slip-on flanges facilitate easy installation and removal, while weld neck and socket weld flanges provide enhanced structural integrity for high-pressure applications. Blind flanges are used to seal off pipelines, ensuring safety during maintenance or shutdowns.

Key design features of JIS B2220 flanges include:

Facing Options: They may feature a raised face or flat face design to accommodate different sealing methods, ensuring leak-free operation under varying pressures and temperatures.

Dimensional Specifications: The standard specifies precise dimensions such as outer diameter, bolt circle diameter, bolt hole diameter, and thickness. This standardization ensures compatibility with piping systems and other equipment components.

Pressure Ratings: Flanges are categorized into different pressure classes (e.g., 5K, 10K, 16K, 20K) based on their ability to withstand specific operating pressures, providing engineers with a range of options to suit project requirements.

Specifications of JIS B2220 Steel Plate Flanges:

JIS B2220 Plate Flanges Dimensions:

1.Dimensions are in millimeters(mm).

2.Dimensions can be specified by different purchasers.

Some Common Grades of Stainless Steel Plate Flanges:

ASTM A182 F304/F304L: These grades of stainless steel are austenitic and commonly used for JIS B2220 plate flanges. They offer good corrosion resistance, excellent weldability, and are suitable for a wide range of applications.

ASTM A182 F316/F316L: Similar to F304/F304L, these grades are also austenitic stainless steels with improved corrosion resistance, particularly in chloride environments.

ASTM A182 F321: F321 is an austenitic stainless steel grade containing titanium, which provides enhanced resistance to intergranular corrosion. It is often used for JIS B2220 plate flanges in high-temperature applications.

ASTM A182 F347: F347 is a stabilized stainless steel grade with the addition of niobium, which improves its resistance to intergranular corrosion. It is commonly used for weld neck flanges in applications involving elevated temperatures.

Differences between JIS B2220 Carbon Steel Plate Flanges and Stainless Steel Plate Flanges:

The primary differences between JIS B2220 carbon steel plate flanges and JIS B2220 stainless steel plate flanges lie in their material composition, mechanical properties, and resistance to corrosion. Here are some key distinctions:

Material Composition:

• Carbon Steel Plate Flanges: Carbon steel plate flanges are primarily made from carbon steel, which is an alloy of iron and carbon. The carbon content typically ranges from 0.05% to 2.0%, and other elements may be present in smaller quantities.
• Stainless Steel Plate Flanges: Stainless steel plate flanges are made from various grades of stainless steel, which is an alloy of iron, chromium, and often other elements such as nickel, molybdenum, or titanium. The specific grade of stainless steel determines its corrosion resistance and mechanical properties.

Corrosion Resistance:

• Carbon Steel Plate Flanges: Carbon steel plate flanges are prone to corrosion when exposed to moisture, oxygen, and corrosive environments. They may require additional protective coatings or surface treatments to enhance their corrosion resistance.
• Stainless Steel Plate Flanges: Stainless steel plate flanges are highly resistant to corrosion due to the presence of chromium, which forms a passive oxide layer on the surface. This oxide layer protects the stainless steel from oxidation and corrosion, making it well-suited for applications in corrosive environments.

Mechanical Properties:

• Carbon Steel Plate Flanges: Carbon steel plate flanges have good strength and are suitable for applications requiring high-pressure and high-temperature resistance. The mechanical properties of carbon steel can vary depending on the carbon content and any additional alloying elements.
• Stainless Steel Plate Flanges: Stainless steel plate flanges offer excellent mechanical properties, including high tensile strength, ductility, and toughness. Stainless steel retains its mechanical strength at elevated temperatures, making it suitable for a wide range of applications.

Cost:

• Carbon Steel Plate Flanges: Carbon steel plate flanges are generally more cost-effective compared to stainless steel plate flanges due to the lower cost of carbon steel as a raw material.
• Stainless Steel Plate Flanges: Stainless steel plate flanges are typically more expensive than carbon steel plate flanges due to the higher cost of stainless steel alloys.

Applications of JIS B2220 Stainless Steel Flanges:

Chemical Processing: Where resistance to corrosive chemicals and high temperatures is critical.

Oil and Gas: Including offshore and onshore installations where reliability and durability are paramount.

Food and Beverage: Due to stainless steel's hygienic properties and ability to resist contamination.

Water Treatment: Used in municipal water supply systems and wastewater treatment plants.