JIS B2220 10K plate flanges in F51, F53, and F55 represent the Japanese industrial standard for high-performance duplex and super duplex stainless steel connections. These "SOP" (Slip-On Plate) flanges are utilized in aggressive marine and chemical environments where standard 304/316 grades fail. By combining F51 Duplex or F53/F55 Super Duplex alloys with the compact 10K pressure rating, these flanges provide exceptional pitting resistance and high mechanical strength for desalination and offshore applications.
technical attributes
Standard: JIS B2220
Pressure Rating: 10K
Material Grade: F51 / F53 / F55
Alloy Type: Duplex / Super Duplex
Flange Type: SOP (Slip-On Plate)
Size Range: 10A to 1500A
Manufacturing: Forged and Machined
Facing Type: FF (Flat Face) / RF (Raised Face)
Yield Strength: Min 450 MPa (F51)
Tensile Strength: 620 to 800 MPa
PREN Value: 34 to 40+
Pitting Resistance: Excellent (High Cr/Mo/N)
Carbon Content: Max 0.030 percent
Microstructure: Ferritic-Austenitic
Corrosion Resistance: High SCC Resistance
Connection: Fillet Weld (Internal/External)
Certification: Mill Test Report 3.1
Primary Industry: Marine / Chemical Processing
Contact: Jorge Yang
Phone: +86-13588258503
E-mail: sales@fluvalve.com
Whatsapp:+86-13588258503
Add: Room 331, South Building,Building 1, No.3 Jinpeng Street, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province
