Weldneck Flanges

UNS S30400 Weldneck Flanges, DIN 1.4301 Weldneck Flanges, UNS N08904 Weldneck Flanges, ASME SA182 Duplex 2205 Weldneck Flanges, ASME SA182 SS 316 Weldneck Flanges.

About Weld Neck Flanges

Weld neck flanges are essential in guaranteeing the safety and security of connections in the broad world of industrial piping systems. These flanges’ great pressure and temperature resistance have earned them widespread acclaim. Weld neck flanges are widely used in the oil and gas, chemical, petrochemical, and power generation industries due to their innovative design and construction.

The weld neck flange is distinguished by the pipe’s enlarged transition area, which can be seen by the flange’s long tapered hub (thus the name). Because of this design element, turbulence and pressure loss are kept to a minimum when fluids move through the system.

Weld neck flanges’ principal benefit is the uniform stress distribution throughout the flange and the pipeline. The lengthy hub reinforces, easing pressure on the flange’s base. This means the likelihood of fatigue failure is reduced, and the system’s overall safety is improved because weld neck flanges are so resistant to bending, thermal expansion, and contraction.

In addition, weld neck flanges’ adaptability to different pipe sizes and pressure classes makes them desirable. Carbon steel, stainless steel, alloy steel, and non-ferrous metals are just some of the materials from which they can be fabricated, ensuring they are compatible with a wide range of working conditions and fluids. Flanges can be protected from corrosion and erosion with the help of specific coatings and linings installed on the outside of the pipe.

Weld neck flanges are useful because they are simple to set up and repair. Welded joints don’t require regular tightening or adjustments because of their permanent nature. Their uniform dimensions and design parameters also make them interchangeable, which expedites the process of making repairs and minimizes disruptions to service.

Weld neck flanges, in conclusion, provide a secure and long-lasting link in industrial pipe systems. These flanges enhance the effectiveness and security of vital procedures because of their high strength, high-stress resistance, and high adaptability. In sectors where dangerous chemicals or high-pressure fluids must be transported or handled, weld neck flanges provide superior performance and peace of mind for engineers.

304 Stainless Steel Weldneck Flanges Stockist, Inconel 625 Weldneck Flanges Exporter, Duplex 31803 Weldneck Flanges Stockist, UNS N06625 Weldneck Flanges Exporter.

Specification of Weldneck Flanges

Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092
Size Chart	1/2" (15 NB) to 48" (1200NB) DN10~DN5000
Pressure Calculation in DIN	6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 Weld Neck Flanges
Pressure Rating ANSI	Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS Weld Neck Flanges
UNI	6Bar 10Bar 16Bar 25Bar 40Bar Weld Neck Flanges
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K Weld Neck Flanges
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized Weld Neck Flanges
EN	6Bar 10Bar 16Bar 25Bar 40Bar Weld Neck Flanges
Most common types of Weld Neck Flanges	Forged / Threaded / Screwed / Plate
Connect Type/ Flange Face Type	Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove

Dimensions Standard Of Weldneck Flanges

Class 150 Weld Neck Flange Dimensions

Normal Diam.		O.D. Flange	Thk. Of Flange Min	Diam. of Hub	Diameter of Raised Face	Hub Diam. Chamfer of W.N	Lengtd Hub.Y	Bore	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	Approx. Weight
inch	dn	O	C	X	G	A	Y	B	BC	BH	BN	BD	KG	LB
1/2″	15	89.00	11.20	30.20	35.10	21.30	47.80	15.80	60.50	15.80	4	1/2″	0.7	1.5
3/4″	20	98.50	12.70	38.10	42.90	26.70	52.30	20.80	69.90	15.80	4	1/2″	0.8	1.8
1″	25	108.00	14.20	49.30	50.80	33.50	55.60	26.70	79.30	15.80	4	1/2″	1.1	2.4
1-1/4″	32	117.50	15.70	58.70	63.50	42.20	57.20	35.10	88.90	15.80	4	1/2″	1.5	3.3
1-1/2″	40	127.00	17.50	65.00	73.20	48.30	62.00	40.90	98.60	15.80	4	1/2″	1.8	4
2″	50	152.50	19.10	77.70	91.90	60.50	63.50	52.60	120.70	19.10	4	5/8″	2.7	6
2-1/2″	65	178.00	22.40	90.40	104.60	73.20	69.90	62.70	139.70	19.10	4	5/8″	4.4	9.8
3″	80	190.50	23.90	108.00	127.00	88.90	69.90	78.00	152.40	19.10	4	5/8″	5.2	11.5
3-1/2″	90	216.00	23.90	122.20	139.70	101.60	71.40	90.20	177.80	19.10	8	5/8″	6.4	14.2
4″	100	228.50	23.90	134.90	157.20	114.30	76.20	102.40	190.50	19.10	8	5/8″	7.5	16.6
5″	125	254.00	23.90	163.60	185.70	141.20	88.90	128.30	215.90	22.40	8	3/4″	9.2	20.2
6″	150	279.50	25.40	192.00	215.90	168.40	88.90	154.20	241.30	22.40	8	3/4″	11	24.3
8″	200	343.00	28.40	246.10	269.70	219.20	101.60	202.70	298.50	22.40	8	3/4″	18.4	40.6
10″	250	406.50	30.20	304.80	323.90	273.10	101.60	254.50	362.00	25.40	12	7/8″	25.5	56.2
12″	300	482.50	31.80	365.30	381.00	323.90	114.30	304.80	431.80	25.40	12	7/8″	37	81.4
14″	350	533.50	35.10	400.10	412.80	355.60	127.00		476.30	28.50	12	1″	51	113
16″	400	597.00	36.60	457.20	469.90	406.40	127.00		539.80	28.50	16	1″	61.5	136
18″	450	635.00	39.60	505.00	533.40	457.20	139.70		577.90	31.80	16	1 1/8″	71.5	158
20″	500	698.50	42.90	558.80	584.20	508.00	144.50		635.00	31.80	20	1 1/8″	85	187
24″	600	813.00	47.80	663.40	692.20	609.60	152.40		749.30	35.10	20	1 1/4″	119	262

Class 300 Weld Neck Flange Dimensions

Pipe Normal Diam.		O.D. Flange	Thk. Of Flange Min	Diam. of Hub	Diameter of Raised Face	Hub Diam. Chamfer of W.N	Lengtd Hub.Y	Bore	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	Approx. Weight
inch	dn	O	C	X	G	A	Y	B	BC	BH	BN	BD	KG/PCS	LB/PCS
1/2″	15	95.5	14.2	38.1	35.1	21.3	52.3	15.7	66.5	15.7	4	1/2″	0.8	1.8
3/4″	20	117. 5	15.7	47.8	42.9	26.7	57.2	20.8	82.6	19.1	4	5/8″	1.4	3.1
1″	25	124. 0	17.5	53.8	50.8	33.5	62	26.7	88.9	19.1	4	5/8″	1.7	3.7
1-1/4″	32	133. 5	19.1	63.5	63.5	42.2	65	35.1	98.6	19.1	4	5/8″	2.2	4.8
1-1/2″	40	155. 5	20.6	69.9	73.2	48.3	68.3	40.9	114.3	22.4	4	5/8″	3.2	7
2″	50	165. 0	22.4	84.1	91.9	60.5	69.9	52.6	127	19.1	8	5/8″	3.6	7.9
2-1/2″	65	190. 5	25.4	100.1	104.6	73.2	76.2	62.7	149.4	22.4	8	3/4″	5.4	12
3″	80	209. 5	28.4	117.3	127	88.9	79.2	78	168.1	22.4	8	3/4″	7.3	16.1
3-1/2″	90	228. 5	30.2	133.4	139.7	101.6	81	90.2	184.2	22.4	8	3/4″	8.9	19.6
4″	100	254. 0	31.8	146.1	157.2	114.3	85.9	102.4	200.2	22.4	8	3/4″	11.8	26
5″	125	279. 5	35.1	177.8	185.7	141.2	98.6	128.3	235	22.4	8	3/4″	16	35.2
6″	150	317. 5	36.6	206.2	215.9	168.4	98.6	154.2	269.7	22.4	12	3/4″	20.2	44.6
8″	200	381. 0	41.1	260.4	269.7	219.2	111. 3	202.7	330.2	25.4	12	7/8″	31.2	68.8
10″	250	444. 5	47.8	320.5	323.9	273.1	117. 3	254.5	387.4	28.4	16	1″	44.3	97.5
12″	300	520. 5	50.8	374.7	381	323.9	130. 0	304.8	450.9	31.8	16	1 1/8″	63.5	140
14″	350	584. 0	53.8	425.5	412.8	355.6	142. 7		514..4	31.8	20	1 1/8″	86	190
16″	400	647. 5	57.2	482.6	469.9	406.4	146. 1		571.5	35.1	20	1 1/4″	112	247
18″	450	711. 0	60.5	533.4	533.4	457.2	158. 8		628.7	35.1	24	1 1/4″	141	310
20″	500	774. 5	63.5	587.2	584.2	508	162. 1		685.8	35.1	24	1 1/4″	173	382
24″	600	914. 5	69.9	701.5	692.2	609.6	168. 1		812.8	41.1	24	1 1/2″	248	546

Class 600 Weld Neck Flange Dimensions

Pipe Normal Diam.		O.D. Flange	Thk. Of Flange Min	Diam. of Hub	Diameter of Raised Face	Hub Diam. Chamfer of W.N	Lengtd Hub	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	Approx. Weight
inch	dn	O	C	X	G	A	Y	BC	BH	BN	BD	KG/PCS	LB/PCS
1/2″	15	95.5	14.2	38.1	35.1	22.4	52.3	66.5	15.7	4	1/2″	0.9	2
3/4″	20	117. 5	15.7	47.8	42.9	25.4	57.2	82.6	19.1	4	5/8″	1.6	3.5
1″	25	124. 0	17.5	53.8	50.8	26.9	62	88.9	19.1	4	5/8″	1.9	4.2
1-1/4″	32	133. 5	20.6	63.5	63.5	28.4	66.5	98.6	19.1	4	5/8″	2.6	5.8
1-1/2″	40	155. 5	22.4	69.9	73.2	31.8	69.9	114.3	22.4	4	3/4″	3.6	8
2″	50	165. 0	25.4	84.1	91.9	36.6	73.2	127	19.1	8	5/8″	4.7	10.4
2-1/2″	65	190. 5	28.4	100.1	104.6	41.1	79.2	149.4	22.4	8	3/4″	4.8	15
3″	80	209. 5	31.8	117.3	127	46	82.6	168.1	22.4	8	3/4″	8.7	19.3
3-1/2″	90	228. 5	35.1	133.4	139.7	49.3	85.9	184.2	25.4	8	7/8″	11.6	25.5
4″	100	273. 0	38.1	152.4	157.2	53.8	101. 6	215.9	25.4	8	7/8″	18.4	40.5
5″	125	330. 0	44.5	189	185.7	60.5	114. 3	266.7	28.4	8	1″	31	68
6″	150	355. 5	47.8	222.3	215.9	66.5	117. 3	292.1	28.4	12	1″	37	81.4
8″	200	419. 0	55.6	273.1	269.7	76.2	133. 4	349.3	31.8	12	1 1/8″	54.5	120
10″	250	508. 0	63.5	342.9	323.9	85.9	152. 4	431.8	35.1	16	1 1/4″	98.5	195
12″	300	559. 0	66.5	400.1	381	91.9	155. 4	489	35.1	20	1 1/4″	105	231
14″	350	603. 5	69.9	431.8	412.8	93.7	165. 1	527.1	38.1	20	1 3/8″	150	330
16″	400	686. 0	76.2	495.3	469.9	106.4	177. 8	603.3	41.1	20	1 1/2″	177	390
18″	450	743. 0	82.6	546.1	533.4	117.3	184. 2	654.1	44.5	20	1 5/8″	228	503
20″	500	813. 0	88.9	609.6	584.2	127	190. 5	723.9	44.5	24	1 5/8″	285	628
24″	600	940. 0	101.6	717.6	692.2	139.7	203. 2	838.2	50.8	24	1 7/8″	372	820

Class 1500 Weld Neck Flanges Dimensions

Pipe Normal Diam.		O.D. Flange	Thk. Of Flange Min	Diam. of Hub	Hub Diam. Chamfer of W.N	Length Hub	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	Approx. Weight
inch	dn	O	C	X	A	Y	BC	BH	BN	BD	KG/PCS	LB/PCS
1/2″	15	120.7	22.4	38.1	21.3	60.5	82.6	22.4	4	3/4″	2.1	4.6
3/4″	20	130	25.4	44.5	26.7	69.9	88.9	22.4	4	3/4″	2.7	5.9
1″	25	149.4	28.4	52.3	33.5	73.2	101.6	25.4	4	7/8″	3.9	8.6
1-1/4″	32	158.8	28.4	63.5	42.2	73.2	111.3	25.4	4	7/8″	4.5	9.9
1-1/2″	40	177.8	31.8	69.9	48.3	82.6	124	28.4	4	1″	6.2	13.7
2″	50	215.9	38.1	104.6	60.5	101.6	165.1	25.4	8	7/8″	11.3	24.9
2-1/2″	65	244.3	41.1	124	73.2	104.6	190.5	28.4	8	1″	16.3	36
3″	80	266.7	47.8	133.4	88.9	117.3	190.5	25.4	8	7/8″	21	46.3
4″	100	311.2	53.8	162.1	114.3	124	235	31.8	8	1 1/8″	31.8	70.1
5″	125	374.7	73.2	196.9	141.2	155.4	279.4	35.1	8	1 1/4″	59	129.8
6″	150	393.7	82.6	228.6	168.4	171.5	317.5	31.8	12	1 1/8″	72	158
8″	200	482.6	91.9	292.1	219.2	212.9	393.7	38.1	12	1 3/8″	124	273
10″	250	584.2	108	368.3	273.1	254	469.9	38.1	16	1 3/8″	207	456
12″	300	673.1	124	450.9	323.9	282.4	533.4	38.1	20	1 3/8″	306	674
14″	350	749.3	133.4	495.3	355.6	298.5	558.8	41.1	20	1 1/2″	416	917
16″	400	825.5	146.1	552.5	406.4	311.2	616	44.5	20	1 5/8″	567	1250
18″	450	914.4	162.1	596.9	457.2	327.2	685.8	50.8	20	1 7/8″	736	1623
20″	500	984.3	177.8	641.4	508	355.6	749.3	53.8	20	2″	929	2048
24″	600	1168.4	203.2	762	609.6	406.4	901.7	66.5	20	2 1/2″	1504	3316

Class 2500 Weld Neck Flanges Dimensions

Nominal Pipe Size		O.D. Flange	Thk. Of Flange Min	Diam. of Hub	Hub Diam. Chamfer of W.N	Lengtd Hub.Y	Diam. of Bolt Circle	Diam. of Bolt Holes	Number of Bolts	Diam. of Bolts (inch)	Approx. Weight
inch	dn	O	C	X	A	Y	BC	BH	BN	BD	KG	LB
1/2″	15	133.4	30.2	42.9	21.3	73.2	88.9	22.4	4	3/4″	3.2	7
3/4″	20	139.7	31.8	50.8	26.7	79.2	95.3	22.4	4	3/4″	3.6	8
1″	25	158.8	35.1	57.2	33.5	88.9	108	25.4	4	7/8″	5.4	12
1-1/4″	32	184.2	38.1	73.2	42.2	95.3	130	28.4	4	1″	7.8	17.2
1-1/2″	40	203.2	44.5	79.2	48.3	111.3	146.1	31.8	4	1 1/8″	11.5	25.4
2″	50	235	50.8	95.3	60.5	127	171.5	28.4	8	1″	19	42
2-1/2″	65	266.7	57.2	114.3	73.2	142.7	196.9	31.8	8	1 1/8″	24	52
3″	80	304.8	66.5	133.4	88.9	168.1	228.6	35.1	8	1 1/4″	42.6	94
4″	100	355.6	76.2	165.1	114.3	190.5	273.1	41.1	8	1 1/2″	64	141
5″	125	419.1	91.9	203.2	141.2	228.6	323.9	47.8	8	1 3/4″	111	244
6″	150	482.6	108	235	168.4	273.1	368.3	53.8	8	2″	171	378
8″	200	552.5	127	304.8	219.2	317.5	438.2	53.8	12	2″	261	576
10″	250	673.1	165.1	374.7	273.1	419.1	539.8	66.5	12	2 1/2″	485	1068
12″	300	762	184.2	441.5	323.9	463.6	619.3	73.2	12	2 3/4″	698	1539

Size Of Weldneck Flanges

Nom Pipe Size	Outside Diam	Sched 10	Sched 20	Sched 30	Std. Wall	Sched 40	Sched 60	Extra Strong	Sched 80	Sched 100	Sched 120	Sched 140	Sched 160	Double Extra Strong
1/2”	0.840	0.674	–	–	0.622	0.622	–	0.546	0.546	–	–	–	0.464	0.252
3/4”	1.050	0.884	–	–	0.824	0.824	–	0.742	0.742	–	–	–	0.612	0.434
1”	1.315	1.097	–	–	1.049	1.049	–	0.957	0.957	–	–	–	0.815	0.599
1.1/4”	1.660	1.442	–	–	1.380	1.380	–	1.278	1.278	–	–	–	1.160	0.896
1.1/2”	1.900	1.682	–	–	1.610	1.610	–	1.500	1.500	–	–	–	1.338	1.100
2”	2.375	2.157	–	–	2.067	2.067	–	1.939	1.939	–	–	–	1.687	1.503
2.1/2”	2.875	2.635	–	–	2.469	2.469	–	2.323	2.323	–	–	–	2.125	1.771
3”	3.500	3.260	–	–	3.068	3.068	–	2.900	2.900	–	–	–	2.624	2.300
3-1/2”	4.000	3.760	–	–	3.548	3.548	–	3.364	3.364	–	–	–	–	2.728
4”	4.500	4.260	–	–	4.026	4.026	–	3.826	3.826	–	3.624	–	3.438	3.152
5”	5.563	5.295	–	–	5.047	5.047	–	4.813	4.813	–	4.563	–	4.313	4.063
6”	6.625	6.357	–	–	6.065	6.065	–	5.761	5.761	–	5.501	–	5.187	4.897
8”	8.625	8.329	8.125	8.071	7.981	7.981	7.813	7.625	7.625	7.437	7.187	7.001	6.813	6.875
10”	10.750	10.420	10.250	10.136	10.020	10.020	9.750	9.750	9.562	9.312	9.062	8.750	8.500	8.750
12”	12.750	12.390	12.250	12.090	12.000	11.938	11.626	11.750	11.374	11.062	10.750	10.500	10.126	10.750
14”	14.000	13.500	13.376	13.250	13.250	13.124	12.812	13.000	12.500	12.124	11.814	11.500	11.188	–
16”	16.000	15.500	15.376	15.250	15.250	15.000	14.688	15.000	14.312	13.938	13.564	13.124	12.812	–
18”	18.000	17.500	17.376	17.124	17.250	16.876	16.500	17.000	16.124	15.688	15.250	14.876	14.438	–
20”	20.000	19.500	19.250	19.000	19.250	18.812	18.376	19.000	17.938	17.438	17.000	16.500	16.062	–
24”	24.000	23.500	23.250	22.876	23.250	22.624	22.062	23.000	21.562	20.938	20.376	19.876	19.312	–
30”	30.000	29.376	29.000	28.750	29.250	–	–	29.000	–	–	–	–	–	–
36”	36.000	35.376	35.000	34.750	35.250	34.500	–	35.000	–	–	–	–	–	–
42”	42.000	–	–	–	41.250	–	–	41.000	–	–	–	–	–	–

Weight Chart Of Weldneck Flanges

Nom Size	150#			300#			600#			900#			1500#			2500#
	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K	WN	S/O	B/K
1/2”	0.7	0.4	0.5	0.8	0.7	0.8	0.9	0.8	0.8	2.1	1.8	1.9	2.1	1.8	1.9	3.2	3	3
3/4”	0.8	0.7	0.8	1.4	1.2	1.2	1.6	1.4	1.4	2.7	2.4	2.7	2.7	2.4	2.7	3.6	4	4.5
1”	1.1	0.8	0.9	1.7	1.4	1.5	1.9	1.7	1.7	3.9	3.6	3.7	3.9	3.6	3.7	5.4	5	5
1.1/4”	1.5	1.2	1.3	2.2	1.8	2	2.6	2.1	2.4	4.5	4.1	4.3	4.5	4.1	4.3	7.8	8	8
1.1/2”	1.8	1.4	1.6	3.2	2.7	2.9	3.6	3.1	3.4	6.2	5.4	5.9	6.2	5.4	5.9	11.5	11	11
2”	2.7	2.2	2.6	3.6	3.2	3.5	4.7	3.9	4.4	11.3	10.5	11.3	11.3	10.5	11.3	19	17	17
2.1/2”	4.4	3.5	4.1	5.4	4.5	5.3	4.8	5.4	6.8	16.3	15.8	16	16.3	15.8	16	24	25	25
3”	5.2	3.8	5.1	7.3	5.9	7.2	8.7	7.3	8.9	15	12.3	16.8	21	21.5	19.5	42.6	38	39
3-1/2”	6.4	5	6.5	8.9	7.5	9.2	11.6	9	12.7	–	–	–	–	–	–	–	–	–
4”	7.5	5.6	7.5	11.8	10	12.2	18.4	16.5	18.6	24	23.2	24.5	31.8	31	33	64	58	60
5”	9.2	6.5	9.2	16	12.5	16	31	28.5	30.8	38.5	37.5	39.5	59	58.8	60	111	95	101
6”	11.0	8.1	11.8	20.2	16.5	22	37	36.2	38	50	48.3	51.5	72	74	75	171	146	156
8”	18.4	13	20.4	31.2	25.5	36	54.5	51.5	62.2	85	75	89	124	112	125	261	220	242
10”	25.5	18.4	31	44.3	35	55	98.5	76.2	102	123	110	131	207	184	215	485	420	465
12”	37	28.5	47	63.5	52	82.5	105	89.5	132	168	146	187	306	264	316	698	590	665
14”	51	37.5	60	86	73	108	150	102	158	198	172	224	416	–	–	–	–	–
16”	61.5	44.5	61	112	88	139	177	150	225	225	192	259	567	–	–	–	–	–
18”	71.5	54	93	141	115	178	228	180	285	318	272	383	736	–	–	–	–	–
20”	85	72	127	173	139	228	285	231	365	376	330	482	929	–	–	–	–	–
24”	119	95	190	248	212	350	372	330	532	680	632	905	1504	–	–	–	–	–

Pressure Rating Of Weldneck Flanges

ANSI/ASME B16.34	ANSI PRESSURE RATING
Temperature (in F°)	150#	300#	400#	600#	900#	1500#	2500#
< 100	285	740	985	1480	2220	3705	6170
200	260	680	905	1360	2035	3395	5655
300	230	655	870	1310	1965	3270	5450
400	200	635	845	1265	1900	3170	5280
500	170	605	805	1205	1810	3015	5025
600	140	570	755	1135	1705	2840	4730
650	125	550	730	1100	1650	2745	4575
700	110	530	710	1060	1590	2655	4425
750	95	505	675	1015	1520	2535	4230
800	80	410	550	825	1235	2055	3430
850	65	320	425	640	955	1595	2655
900	50	230	305	460	690	1150	1915
950	35	135	185	275	410	685	1145
1000	20	85	115	170	255	430	715
Hydrostatic Test Pressure (in Psig)	450	1125	1500	2225	3350	5575	9275

ANSI/ASME B16.34	ANSI PRESSURE RATING
Temperature in C°	150#	300#	400#	600#	900#	1500#	2500#
-29 / 38	19.6	51.1	68.1	102.1	153.2	255.3	425.5
50	19.2	50.1	66.8	100.2	150.4	250.6	417.7
100	17.7	46.6	62.1	93.2	139.8	233	388.3
150	15.8	45.1	60.1	90.2	135.2	225.4	375.6
200	13.8	43.8	58.4	87.6	131.4	219	365
250	12.1	41.9	55.9	83.9	125.8	209.7	349.5
300	10.2	39.8	53.1	79.6	119.5	199.1	331.8
325	9.3	38.7	51.6	77.4	116.1	193.6	322.6
350	8.4	37.6	50.1	75.1	112.7	187.8	313
375	7.4	36.4	48.5	72.7	109.1	181.8	303.1
400	6.5	34.7	46.3	69.4	104.2	173.6	289.3
425	5.5	28.8	38.4	57.5	86.3	143.8	239.7
450	4.6	23	30.7	46	69	115	191.7
475	3.7	17.4	23.2	34.9	52.3	87.2	145.3
500	2.8	11.8	15.7	23.5	35.3	58.8	97.9

Price Of Weldneck Flanges

Stainless Steel Flanges	USD $2.05 - $10.06 / Piece (FOB Price) on request
High Nickel Alloys Flanges	USD $8.10 - $20.20 / Piece (FOB Price) on request
Duplex & Super Duplex Flange	USD $10.20 - $35.50 / Piece (FOB Price) on request
Cupro Nickel Flanges	USD $5.19 - $10.48 / Piece (FOB Price) on request
Carbon Steel Flanges	USD $2.08 - $7.10 / Piece (FOB Price) on request

Application Of Weldneck Flanges

We make sure that our every product is made of high quality raw material. We thoroughly test each and every product before dispatching it to our customers.

Testing Of Weldneck Flanges

We known for its accurate and perfect dimensions. We thoroughly test all our products before shipping them to the customers. We carry out destructive as well as non-destructive tests on all our products.

Packing Of Weldneck Flanges

We uses the most safest and the most effective ways of packaging for all types of deliveries. We pack our goods in various ways such as:

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