Model No: PN 16 DN100 WNRF S235JR

BS4504 FLANGE

BS 4504 is a British standard specification for flanges that covers steel flanges, bolting, and facing. These flanges are commonly used in piping systems and are manufactured to meet specific design and performance criteria outlined in the standard.

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Key points about BS 4504 flanges:

The standard includes various types of flanges such as weld neck, slip-on, blind, threaded, and lap joint flanges. Each type has its own specifications regarding dimensions, facing, and material requirements.

Flange type:

BS 4504 PN6 Flange Dimensions

BS 4504 Flange Standard Specification

Standard	BS 4504 (British Standards)
Size	DN15 – DN2000
Type	Weld Neck , Threaded , Slip On , Plate , Blind
Process	Forged, Stamped
Pressure Grade	PN6, PN10, PN16, PN25, PN40

BS 4504 Flange Material Specification

Stainless Steel BS 4504 Flange:
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L

Duplex & Super Duplex Steel BS 4504 Flange:
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61

Carbon Steel BS 4504 Flange:
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706

Low Temperature Carbon Steel BS 4504 Flange: ASTM A350, LF2, LF3

Alloy Steel BS 4504 Flange:
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91

Copper Alloy Steel BS 4504 Flange: ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200

Nickel Alloy BS 4504 Flange:
ASTM SB564, SB160, SB472, SB162 Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020)

Flanges made according to BS 4504 are designed to be used in conjunction with British Standard pipe sizes.

The standard specifies requirements for materials, facing, dimensions, pressure-temperature ratings, and tolerances for the different types of flanges.

BS 4504 flanges are widely used in industries where British standards are followed, including sectors such as oil and gas, petrochemicals, and various industrial applications.