Stainless steel flanges

Flanges (Industrial pipe Flanges)

Flanges are used to make a joint that is required to be dismantled.
Various attributes of Flanges are described below:

1.   Material standards:

Stainless steel:

• ASTM A 182 F304
• ASTM A 240 304
• ASTM A 182 F304L
• ASTM A 240 304L
• ASTM A 182 F304N
• ASTM A 240 304N
• ASTM A 182 F316
• ASTM A 240 316
• ASTM A 182 F316Ti
• ASTM A 240 316Ti
• ASTM A 182 F316L
• ASTM A 240 316L
• ASTM A 182 F316H
• ASTM A 240 316H
• ASTM A 182 F321
• ASTM A 240 321
• ASTM A 182 F310
• ASTM A 240 310
• ASTM A 182 F317L
• ASTM A 240 317L
• ASTM A 182 F347H
• ASTM A 240 347H

Alloy steel

• ASTM A 182 F1
• ASTM A 182 F5
• ASTM A 182 F9
• ASTM A 182 F11
• ASTM A 182 F12
• ASTM A 182 F22
• ASTM A 182 F51
• ASTM A 182 F53
• ASTM A 182 F55

Nickel alloys

• ASTM B 160
• ASTM B 472
• ASTM B 560

Grade: UNS 2200 (NICKEL 200),

UNS 2201 (NICKEL 201),

UNS 4400 (MONEL 400),

UNS 8825 INCONEL (825),

UNS 6600 (INCONEL 600),

UNS 6601 (INCONEL 601),

UNS 6625 (INCONEL 625),

UNS 10276 (HASTELLOY C 276),

Carbon steel

·         ASTM A105

·         ASTM A105N

·         ASTM A694 F42

·         ASTM A694 F46

·         ASTM A694 F52

·         ASTM A694 F56

·         ASTM A694 F60

·         ASTM A694 F65

·         ASTM A694 F70

·         ASTM A350 LF3

·         ASTM A350 LF2

2.   Flange Dimension Standards & Pressure Grade:

·         ASA/ANSI (USA) ANSI 125# TO 2500#

·         PN/DIN (European) DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656,

DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635,

DIN2636, DIN2637, DIN2638, DIN2673

Pressure Class : PN 6 TO PN 320

·         BS/AS (British/Australian) (BS10: Table D,Table E,Table F,Table G,Table H, Table J Table K,)

(BS4504:PN6, PN10, PN16, PN25, PN40, PN64, PN100.)

(AS2129 Table C,Table D,Table E,Table F,Table G,Table H, Table J)

·         JIS/KIS (Japanese/Korean) JIS B 2220:5K,10K -JIS 2220:10K,16K,20K,30K

3.   Flange Type Designation:

·         Slip On Flanges

·         Slip On Orifice Flanges

·         Blind Flanges

·         Weld Neck Flanges

·         Weld Neck Orifice Flanges

·         Long Weld Neck Flanges

·         Heavy Barrel Long Weld Neck Flanges

·         Lap Joint Flanges

·         Socket Weld Flanges

·         Threaded Flanges

·         Threaded Orifice Flanges

4.   Flange Facing:

·         Flat face : “FF” (It is only used for 150 (psi) rating pipe class.)

·         Raised face: “RF” (It is specified up to 600 (psi) rating pipe class.)

·         Tongue and groove: (Its use is mainly dependent upon the nature of fluid to be handled.)

·         Ring joint: “RTJ” (It is specified from 900 rating (psi) & above pipe class.)

5.   Flange pipe standard, (SCOPE)

·         ASME B 16.5 (1/2”NPS ~24”NPS) (DN-15 ~ DN-500)

·         ASME B 16.47 (26”NPS ~60”NPS) (DN-650 ~ DN-1500)