BS 4504 SECTION 3.1 1989 NP10 Code 300LBS 304L Forged Steel Flanges and Lap Joint Flange

Product Name: Lap Joint Flange

Pressure: 300 lbs

Material: 304L

Manufacturing: Forged Steel Flanges

A flange is defined as a plate type device, normally round, that is attached to the end of a pipe, fitting, valve or other object to facilitate the assembly and disassembly of a piping system.

Flanges are manufactured in all the different materials to match the material of the pipe and fittings to which they are being attached. While some flanges are made of Cast Iron, the vast majority of flanges are forged carbon steel.

Forged steel flanges are made in seven primary ratings:

• Class 150
• Class 300
• Class 400
• Class 600
• Class 900
• Class 1500
• Class 2500

• Weld Neck Flanges
• Slip-On Flanges
• Lap Joint Flanges
• Threaded Flanges
• Socket Weld Flanges
• Blind Flanges

• Carbon Steel: A-105, A-350 LF2 [NACE + HIC] etc.
• Alloy Steel: F-5, F-9, F-11, F-22, F-91 etc.
• Stainless Steel: SS 304, SS 304L SS316, SS 316L, SS 316Ti, SS 321, SS 347, SS 304H, 317L, 347H, Etc.
• Duplex SS: F-51, F-55
• High Strength Steel: A694 Gr 52, 60, 65, 70, AISI 4130, 4140
• Nickel Alloys: Monel 400, Inconel 625, Inconel 825, Alloy 20, etc.