stainless steel flange dimensions:

ANSI 1/2, 3/4, 1, 1 1/4, 1 1/2, 2, 2 1/2, 3, 3 1/2, 4, 5, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 60, 66, 72, 78, 84, 90, 96, 102, 108, 114, 120 inch(") and etc.

DN 10, 15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300, 350, 400, 500, 600, 700, 800, 900, 1000, 1200, 1400, 1600, 1800, 2000, 2200, 2400, 2600, 2800, 3000, 3200, 3400, 3600, 3800, 4000 MM and etc.

FLANGE STANDARD	PRESSURE RATING	TYPE	FACING	MATERIAL
ANSI B16.5	CLASS 150 300 400 600 900 1500 2500 LBS	SO WN SW TH LJ BL LWN	RF FF RTJ etc	ASTM SA105/105N A350 LF2 CL1/CL2 A694 F45/52/65, s235jr C22.8; A182 F304/304L A182 F316/316L A182 F317L A182 F310 F321 F347; A182 F5 F9 F11 F51 F53 F55 F60 F304H F316H F317H, C276 INCONEL 600 625; and etc..
ANSI B16.47-A MSS	CLASS 150 300 400 600 900 LBS	WN BL
ANSI B16.47-B API	CLASS 75 150 300 400 600 900 LBS
ANSI/ASME B16.36	CLASS 300 400 600 900 1500 2500 LBS	ORIFICE
ANSI/ASME B16.48	CLASS 150 300 400 600 900 1500 2500 LBS	FIG.8 SPACER AND BLANK SPECTACLE
AWWA C207	CLASS B & D TABLE 2/3, CLASS E TABLE 4	SO PL BL
EN 1092-1	PN 2.5 6 10 16 25 40 63 100 160 250 320 400	PL LOO BL WN SO TH
BS 4504	PN 2.5 6 10 16 25 40	PL WN TH BL SO
DIN	PN 6 10 16 25 40	PL WN TH BL LOO SO
UNI	PN 6 10 16 25 40	PL WN TH BL LOO
SABS/SANS 1123	CLASS 600 1000 1600 2500 4000 KPA	WN PL TH SO BL
JIS B2220/KS	5K 10K 16K 20K 30K 40K	SOP/PL SOH/SO BL
GOST	PN 1 1.6 2.5 4 6.3 10	PL WN BL
AS	TABLE D E F H	PL SO BL

stainless steel flange dimensions have two processes of flaw detection and heat treatment in the manufacturing process than other pipe fittings. The other programs are the same. Because some flanges are handled improperly, they will be distorted, which is not allowed. In addition, after the head is pushed, the outer diameter of the front end is generally large, and it is shaped by a shaping die. Due to the presence of welds, non-destructive testing is required. Heat treatment is also required due to the presence of welding stress.