ASME B16.5 Welding Neck Flange Class 600

Technical Drawing

Dimensions and Weights

Size	D	T	G	t
1/2"	95	14.3	34.9	7.0
3/4"	115	15.9	42.9	7.0
1"	125	17.5	50.8	7.0
1-1/4"	135	20.7	63.5	7.0
1-1/2"	155	22.3	73.0	7.0
2"	165	25.4	92.1	7.0
2-1/2"	190	28.6	104.8	7.0
3"	210	31.8	127.0	7.0
3-1/2"	230	35.0	139.7	7.0
4"	275	38.1	157.2	7.0
5"	330	44.5	185.7	7.0
6"	355	47.7	215.9	7.0
8"	420	55.6	269.9	7.0
10"	510	63.5	323.8	7.0
12"	560	66.7	381.0	7.0
14"	605	69.9	412.8	7.0
16"	685	76.2	469.9	7.0
18"	745	82.6	533.4	7.0
20"	815	88.9	584.2	7.0
22"	870	95.2	641.4	7.0
24"	940	101.6	692.2	7.0

*The dimensions of outside diameter, flange thickness, and raised face of ASME B16.5 Class 600 welding neck flange. D: outside diameter of flange; T: flange thickness; t: height of raised face; G: outside diameter of raised face; all units are mm.

Size	K	n	d	l	L
1/2"	66.7	4	5/8	1/2	75
3/4"	82.6	4	3/4	5/8	90
1"	88.9	4	3/4	5/8	90
1-1/4"	98.4	4	3/4	5/8	95
1-1/2"	114.3	4	7/8	3/4	110
2"	127.0	8	3/4	5/8	110
2-1/2"	149.2	8	7/8	3/4	120
3"	168.3	8	7/8	3/4	125
3-1/2"	184.2	8	1	7/8	140
4"	215.9	8	1	7/8	145
5"	266.7	8	1-1/8	1	165
6"	292.1	12	1-1/8	1	170
8"	349.2	12	1-1/4	1-1/8	190
10"	431.8	16	1-3/8	1-1/4	215
12"	489.0	20	1-3/8	1-1/4	220
14"	527.0	20	1-1/2	1-3/8	235
16"	603.2	20	1-5/8	1-1/2	255
18"	654.0	20	1-3/4	1-5/8	275
20"	723.9	24	1-3/4	1-5/8	285
22"	777.7	24	1-7/8	1-3/4	305
24"	838.2	24	2	1-7/8	330

*The bolting dimensions of ASME B16.5 Class 600 welding neck flange. K: diameter of bolt circle; n: number of bolts; d: diameter of bolt holes; l: diameter of bolts; L: length of stud bolts for 7 mm raised face flange; the length of the stud bolt does not include the height of the points. All units are mm except that d and l are provided in inch.

Size	Y	X	A	Ms
1/2"	52	38	21.3	0.87
3/4"	57	48	26.7	1.45
1"	62	54	33.4	1.76
1-1/4"	67	64	42.2	2.49
1-1/2"	70	70	48.3	3.49
2"	73	84	60.3	4.36
2-1/2"	79	100	73.0	6.43
3"	83	117	88.9	8.53
3-1/2"	86	133	101.6	10.7
4"	102	152	114.3	17.4
5"	114	189	141.3	29.2
6"	117	222	168.3	34.9
8"	133	273	219.1	53.9
10"	152	343	273.0	86.5
12"	156	400	323.8	103
14"	165	432	355.6	122
16"	178	495	406.4	170
18"	184	546	457.0	204
20"	190	610	508.0	254
22"	197	663	558.8	272.08
24"	203	718	610.0	358

*The dimensions of hub and weights for ASME B16.5 Class 600 welding neck flange. Y: length through hub; X: diameter of hub at base; A: diameter of hub at top welding point; Ms: approximate weights/ masses of the flange; Generally, the bore diameter B of flange is equal to A minus two times of nominal wall thickness of adjoining pipe. All dimensions are in mm and the weights are in kg.

ASME B16.5 WN Flanges: Dimensions & Weights
Class150	Class 300	Class 400	Class 600
Class 900	Class 1500	Class 2500	-

*Click to view the dimensions and weights for other pressure ratings.