Stainless Steel Weld Neck Flange and Raised Face WNRF Flange Manufacturer

Weld Neck Pipe Flanges and Raised Face WNRF Flange manufacturer in India

The design of some flanges is suited to reduce the tension or stress in a piping system. One type of flange is the weld neck or WN flanges. The design of these flanges includes a long neck or what is referred to as a high hub. Its long neck is the reason for many weld neck flanges manufacturers in India referring to it as a High hub flange. The neck of this component is tapered at the top, with the base having a larger diameter than its neck. Due to its tapered neck construction, many in the industry refer to them as tapered hub flanges.

The Alloy steel Weld Neck Flanges are suited to work in high pressure environments, especially since the stress that was initially accumulated at the base of the flange is evenly distributed in the neck. These flanges can be successfully employed in applications where the pressure applied is as high as 5,000 psi. Although using the appropriate material to produce the Wnrf Flange, like stainless steel or alloy steel is a must for both excellent performances as well as durability. The chemical composition coupled with the design of the component is what makes the Rtj Weld Neck Flange a good fit across applications that deal with both high or low temperatures. In applications where the temperatures range between low to sub-zero, it is challenging to find a design that permits excellent performance. In such conditions, the high, tapered hub, along with the appropriate grade of Stainless Steel Weld Neck Flange will yield good performance in both the corrosion resistance and mechanical properties. This remains one of the most easily identifiable flanges. And the Weld Neck Pipe Flanges is similar to an LWN flange, with the exception of the length of the neck, where it is longer in the latter.

Manufacturer and supplier of Carbon Steel Flat Face Weld Neck Flange and SS 316 Rtj Welding Neck Flange

Table of Content

Stainless Steel Weld Neck Flange Specification Chart
Frequently Used Reducing Weld Neck Flange Types
Raised Face WNRF 150# Dimensions
Welding Neck Flange Class 300 Dimensions
Weld Neck Flange Class 600 Dimensions
Class 900 WNRF Flange Dimensions In Mm
Weld Neck Flange Dimensions 1500#
Reducing Weld Neck Flange Dimensions Class 2500
Jis Welding Neck Flange Dimension Standard
Weld Neck Flange Manufacturing Process
Weld Neck Flange Schedule Chart
SS WNRF Flange Weight Chart
Stainless Steel Weld Neck Flange Pressure Ratings
Weld Neck Flange Tolerances
SS Weld Neck Flange Hs Code

Stainless Steel Weld Neck Flange Specification Chart

Alloy steel Weld Neck Flanges Manufacturers In India, View SS WNRF Flange Bolt sizes, Series B Welding Neck Flange Dimensions In Mm and online price list

Weld Neck Flanges Standards	ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, MSS S44, BS 10, EN-1092, DIN, API605, ANSI Flanges, API7S-43, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, EN1092
ASME B16.5 Weld Neck Flanges Size Chart	1/2 Inch to 48 Inch
Weld Neck Flanges Pressure Calculation in DIN	6, 10, 16, 25, 40 Bar and PN6 PN10 PN16 PN25 PN40, PN64
Weld Neck Flanges Pressure Rating ANSI	Class #150, #300, #600, #900, #1500, #2500 LBS
UNI	6, 10, 16, 25, 40Bar
JIS	5K, 10 K, 16 K 20 K, 30 K, 40 K, 63 K
Coating	Oil Black Paint, Anti-rust Paint, Zinc Plated, Yellow Transparent, Cold and Hot Dip Galvanized
EN	6Bar 10Bar 16Bar 25Bar 40Bar
Most common types	Threaded, Forged, Plate, Screwed
Production technique	Forged, Heat treated and machined
Test	UI trasonic flaw detector, Hydrostatic testing machine, Direct-reading Spectrograph, X-ray detector, Magnetic particle detector
Equipment	electric bevelling machine, Press machine, Sand-blasting machine, Bending machine, Pushing Machine etc
Flange Face Type	Ring Type Joint, Lap-Joint Face, Raised Face, Flat Face, Small Tongue, Large Male-Female, Small Male-Female, Large Tongue & Groove Flanges manufacturer and Supplier
Flanges Marking	All Flanges are marked as follows: Supplier or Manufacturer’s Name, Size, Class, Bore, Dimension, Material, Heat No. Or according to the customer’s request.
Supplier and Distributors Located in	Tehran, Ankara, Bengaluru, Noida, Indore, Rajkot, Surat, Sydney, Port of Spain, Montreal, Gurgaon, Mexico, Bogota, Gimhae si, Khobar, Vadodara, Karachi, Perth, Hyderabad, Lagos, Nagpur, Coimbatore, Jamshedpur, Pimpri Chinchwad, Ahmedabad, Istanbul, Baroda, Ludhiana, Janeiro, New Delhi, Bangalore, Ludhiana, Melbourne, Abu Dhabi, Ernakulam, Caracas, Muscat, Chennai, Howrah, London, Kuwait, Gujarat, Kolkata, Courbevoie, Ahvaz, Mumbai, Kanpur, Dammam, Manama, Santiago, Riyadh, India, Ranchi, Calgary, Thiruvananthapuram

Frequently Used Reducing Weld Neck Flange Types

Weld Neck Pipe Flanges

Raised Face Weld Neck Flange

Reducing Weld Neck Flange

6 Weld Neck Flange

En Weld Neck Flange

Astm A105n Wn Flange, 10 Inch, Class 150 Lb, Sch 40

Astm A182 Weld Neck Flange, 150 Lb, 12 Inch, Sch 40, Rf

Stainless Steel En 1092-1 Wn Flange, Dn 100, Pn 16

Stainless Steel Weld Neck Flanges

Asme A694 F60 Weld Neck Flange, 14 Inch, 1500 Lb, Sch 160, Rtj

SS Weld Neck Pipe Flanges

Ss Forged Wn Flange, Astm A182 F316l, 2 1/2 Inch, Sch 80s, B16.5

Astm A182 F316l Weld Neck Flange, Ansi B16.5, Class 900, 14 Inch

Ansi B16.5 150lbs Weld Neck Carbon Steel Pipe Flanges

A182 F316 F316l Stainless Steel Weld Neck Flange

Ansi Class150 Stainless Steel Weld Neck Flange

Din Standard Pn10 Titanium Forging Weld Neck Flange

Ansi B16.5 Gr2 Wn Rf Welding Neck Titanium Flange

Ansi B16.5 Carbon Steel Weld Neck Flange

Flat Weld Neck Stainless Steel Floor Flange

Ansi B16.5 Class 150 6 Inch 304 Stainless Steel Weld Neck Flange

Raised Face WNRF Flange 150# Dimensions

ø in Inch	D	b	g	m	a	J*	h	k	Holes	l	Kg.
5	254,0	23,8	185,7	163,5	141,2	128,3	88,9	215,9	8	22,2	9,200
3/4	98,4	12,7	42,9	38,1	26,7	20,8	52,4	69,8	4	15,9	0,700
1	107,9	14,3	50,8	49,2	33,5	26,7	55,6	79,4	4	15,9	1,100
1 1/4	117,5	15,9	63,5	58,8	42,2	35,1	57,1	88,9	4	15,9	1,500
1 1/2	127,0	17,5	73,0	65,1	48,3	40,9	61,9	98,4	4	15,9	1,800
1/2	88,9	11,1	34,9	30,2	21,3	15,7	47,6	60,3	4	15,9	0,500
2	152,4	19,0	92,1	77,8	60,3	52,6	63,5	120,6	4	19,0	2,700
2 1/2	177,8	22,2	104,8	90,5	73,1	62,7	69,8	139,7	4	19,0	4,400
3	190,5	23,8	127,0	107,9	88,9	78,0	69,8	152,4	4	19,0	5,200
3 1/2	215,9	23,8	139,7	122,2	101,6	90,2	71,4	177,8	8	19,0	6,400
4	228,6	23,8	157,2	134,9	114,3	102,4	76,2	190,5	8	19,0	7,500
6	279,4	25,4	215,9	192,1	168,4	154,2	88,9	241,3	8	22,2	11,000
8	342,9	28,6	269,9	246,1	219,1	202,7	101,6	298,4	8	22,2	18,300
10	406,4	30,2	323,8	304,8	273,0	254,5	101,6	361,9	12	25,4	25,000
12	482,6	31,7	381,0	365,1	323,8	304,8	114,3	431,8	12	25,4	39,000
14	533,4	34,9	412,7	400,0	355,6	336,5	127,0	476,2	12	28,6	51,000
16	596,9	36,5	469,9	457,2	406,4	387,3	127,0	539,7	16	28,6	60,000
18	635,0	39,7	533,4	504,8	457,2	438,1	139,7	577,8	16	31,7	71,000
20	698,5	42,9	584,2	558,8	508,0	488,9	144,5	635,0	20	31,7	88,000
22	749,3	46,0	641,2	609,6	558,8	539,7	149,2	692,1	20	34,9	102,000
24	812,8	47,6	692,1	663,6	609,6	590,5	152,4	749,3	20	34,9	119,000

Welding Neck Flange Class 300 Dimensions

Find the Best Wholesale Duplex S31803 Welding Neck Flange suppliers in Mumbai, Buy at trade prices from genuine Stainless Steel WNRF manufacturers in India, Check Weld Neck Flange Weight In Kg online

ø in inches	D	b	g	m	a	J*	h	k	Holes	l	Kg.
14	584,2	54,0	412,7	425,4	355,6	336,5	142,9	514,3	20	31,7	88,000
1/2	95,2	14,3	34,9	38,1	21,3	15,7	52,4	66,7	4	15,9	0,900
3/4	117,5	15,9	42,9	47,6	26,7	20,8	57,1	82,5	4	19,0	1,500
1	123,8	17,5	50,8	54,0	33,5	26,7	61,9	88,9	4	19,0	1,900
1 1/4	133,3	19,0	63,5	63,5	42,2	35,1	65,1	98,4	4	19,0	2,600
1 1/2	155,6	20,6	73,0	69,8	48,3	40,9	68,3	114,3	4	22,2	3,300
2	165,1	22,2	92,1	84,1	60,3	52,6	69,8	127,0	8	19,0	3,600
2 1/2	190,5	25,4	104,8	100,0	73,1	62,7	76,2	149,2	8	22,2	5,400
3	209,5	28,6	127,0	117,5	88,9	78,0	79,4	168,3	8	22,2	7,400
4	254,0	31,7	157,2	146,0	114,3	102,4	85,7	200,0	8	22,2	11,900
5	279,4	34,9	185,7	177,8	141,2	128,3	98,4	234,9	8	22,2	16,000
6	317,5	36,5	215,9	206,4	168,4	154,2	98,4	269,9	12	22,2	20,200
3 1/2	228,6	30,2	139,7	133,3	101,6	90,2	81,0	184,1	8	22,2	8,900
8	381,0	41,3	269,9	260,3	219,1	202,7	111,1	330,2	12	25,4	31,000
10	444,5	47,6	323,4	320,7	273,0	254,5	117,5	387,3	16	28,6	44,300
12	520,7	50,8	381,0	374,6	323,8	304,8	130,2	450,8	16	31,7	64,000
16	647,7	57,1	469,9	482,6	406,4	387,3	146,0	571,5	20	34,9	113,000
18	711,2	60,3	533,4	533,4	457,2	438,1	158,7	628,6	24	34,9	134,000
20	774,7	63,5	584,2	587,4	508,0	488,9	161,9	685,8	24	34,9	171,000
22	838,2	66,7	641,2	641,2	558,8	539,7	165,1	742,9	24	41,3	195,000
24	914,4	69,8	692,1	701,7	609,6	590,5	168,3	812,8	24	41,3	238,000

Weld Neck Flange Class 600 Dimensions

ø In Inches	D	b	g	m	J	h	k	Holes	l	Kg.
14	603,2	69,8	412,7	431,8	359,1	93,7	527,0	20	38,1	100,000
1/2	95,2	14,3	34,9	38,1	22,3	22,2	66,7	4	15,9	0,800
3/4	117,5	15,9	42,9	47,6	27,7	25,4	82,5	4	19,0	1,400
1	123,8	17,5	50,8	54,0	34,5	27,0	88,9	4	19,0	1,600
5	330,2	44,4	185,7	188,9	143,8	60,3	266,7	8	28,6	24,500
1 1/2	155,6	22,2	73,0	69,8	49,5	31,7	114,3	4	22,2	3,100
2	165,1	25,4	92,1	84,1	62,0	36,5	127,0	8	19,0	3,700
2 1/2	190,5	28,6	104,8	100,0	74,7	41,3	149,2	8	22,2	5,400
3	209,5	31,7	127,0	117,5	90,7	46,0	168,3	8	22,2	7,300
3 1/2	228,6	34,9	139,7	133,3	103,4	49,2	184,1	8	25,4	8,900
4	273,0	38,1	157,2	152,4	116,1	54,0	215,9	8	25,4	11,800
6	355,6	47,6	215,9	222,2	170,7	66,7	292,1	12	28,6	29,500
1 1/4	133,3	20,6	63,5	63,5	43,2	28,6	98,4	4	19,0	2,100
8	419,1	55,6	269,9	273,0	221,5	76,2	349,2	12	31,7	43,000
12	558,8	66,7	381,0	400,0	327,1	92,1	488,9	20	34,9	86,000
16	685,8	76,2	469,9	495,3	410,5	106,4	603,2	20	41,3	142,000
18	742,9	82,5	533,4	546,1	461,8	117,5	654,0	20	44,4	175,000
20	812,8	88,9	584,2	609,6	513,1	127,0	723,9	24	44,4	232,000
22	869,9	95,2	641,2	666,7	564,4	133,3	777,9	24	47,6	292,000
10	508,0	63,5	323,8	342,8	276,3	85,7	431,8	16	34,9	70,000
24	939,8	101,6	692,1	717,5	615,9	139,7	838,2	24	50,8	330,000

Class 900 WNRF Flange Dimensions In Mm

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub OD	Weld Neck OD	Welding Neck Length	Bore	RF Diameter	RF Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	120	22.3	38	21.3	60	Refer Note	34.9	7	82.6	1.6
3/4	20	130	25.4	44	26.7	70		42.9	7	88.9	1.6
1	25	150	28.6	52	33.4	73		50.8	7	101.6	1.6
1 1/4	32	160	28.6	64	42.2	73		63.5	7	111.1	1.6
1 1/2	40	180	31.8	70	48.3	83		73	7	123.8	1.6
2	50	215	38.1	105	60.3	102		92.1	7	165.1	1.6
2 1/2	65	245	41.3	124	73	105		104.8	7	190.5	1.6
3	80	240	38.1	127	88.9	102		127	7	190.5	1.6
4	100	290	44.5	159	114.3	114		157.2	7	235	1.6
5	125	350	50.8	190	141.3	127		185.7	7	279.4	1.6
6	150	380	55.6	235	168.3	140		215.9	7	317.5	1.6
8	200	470	63.5	298	219.1	162		269.9	7	393.7	1.6
10	250	545	69.9	368	273	184		323.8	7	469.9	1.6
12	300	610	79.4	419	323.8	200		381	7	533.4	1.6
14	350	640	85.8	451	355.6	213		412.8	7	558.8	1.6
16	400	705	88.9	508	406.4	216		469.9	7	616	1.6
18	450	785	101.6	565	457	229		533.4	7	685.8	1.6
20	500	855	108	622	508	248		584.2	7	749.3	1.6
24	600	1040	139.7	749	610	292		692.2	7	901.7	1.6

Weld Neck Flange Dimensions 1500#

Size in Inch	Size in mm	Outer diameter	Flange thickness	Hub Outer diameter	Weld Neck OD	Welding Neck Length	Bore	Raised Face Diameter	Raised Face Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	120	22.3	38	21.3	60	Refer Note	34.9	7	82.6	1.6
3/4	20	130	25.4	44	26.7	70		42.9	7	88.9	1.6
1	25	150	28.6	52	33.4	73		50.8	7	101.6	1.6
2	50	215	38.1	105	60.3	102		92.1	7	165.1	1.6
8	200	485	92.1	292	219.1	213		269.9	7	393.7	1.6
2 1/2	65	245	41.3	124	73	105		104.8	7	190.5	1.6
3	80	265	47.7	133	88.9	117		127	7	203.2	1.6
1 1/4	32	160	28.6	64	42.2	73		63.5	7	111.1	1.6
1 1/2	40	180	31.8	70	48.3	83		73	7	123.8	1.6
4	100	310	54	162	114.3	124		157.2	7	241.3	1.6
5	125	375	73.1	197	141.3	156		185.7	7	292.1	1.6
6	150	395	82.6	229	168.3	171		215.9	7	317.5	1.6
10	250	585	108	368	273	254		323.8	7	482.6	1.6
12	300	675	123.9	451	323.8	283		381	7	571.5	1.6
16	400	825	146.1	552	406.4	311		469.9	7	704.8	1.6
18	450	915	162	597	457	327		533.4	7	774.7	1.6
20	500	985	177.8	641	508	356		584.2	7	831.8	1.6
14	350	750	133.4	495	355.6	298		412.8	7	635	1.6
24	600	1170	203.2	762	610	406		692.2	7	990.6	1.6

Reducing Weld Neck Flange Dimensions Class 2500

Size in Inch	Size in mm	Outer Diameter	Flange Thickness	Hub Outer diameter	Weld Neck Outer diameter	Welding Neck Length	Bore	Raised Face Diameter	Raised Face Height	PCD	Weld Face
		A	B	C	D	E	F	G	H	I	J
1/2	15	135	30.2	43	21.3	73	Refer Note	34.9	7	88.9	1.6
3/4	20	140	31.8	51	26.7	79		42.9	7	95.2	1.6
1 1/4	32	185	38.1	73	42.2	95		63.5	7	130.2	1.6
12	300	760	184.2	441	323.8	464		381	7	619.1	1.6
2	50	235	50.9	95	60.3	127		92.1	7	171.4	1.6
2 1/2	65	265	57.2	114	73	143		104.8	7	196.8	1.6
3	80	305	66.7	133	88.9	168		127	7	228.6	1.6
1	25	160	35	57	33.4	89		50.8	7	108	1.6
4	100	355	76.2	165	114.3	190		157.2	7	273	1.6
5	125	420	92.1	203	141.3	229		185.7	7	323.8	1.6
1 1/2	40	205	44.5	79	48.3	111		73	7	146	1.6
6	150	485	108	235	168.3	273		215.9	7	368.3	1.6
8	200	550	127	305	219.1	318		269.9	7	438.2	1.6
10	250	675	165.1	375	273	419		323.8	7	539.8	1.6

Jis Welding Neck Flange Dimension Standard

A PED approved Stainless Steel Weld Neck Flange manufacturers in India, View Weld Neck Flange Price List and A182 F11 WNRF Flange Dimensions Class 2500 online

Nominal	Outside	Inside	Outside	Sectional Dimensions of Flange							Bolt Hole			Nominal	Approx.
Dia. of	Dia. of	Dia. of	Dia. of	t	T	Dia. of Hub		r	Dia. of	Dia. of	Bolt.	Number	Hole	Bolt	Weight
Flange	Steel	Flange	Flange			a	b		Face	Raised Face	Circle	of Bolt	Dia.	Size	(kg)
	Pipe	do	D			a	b		f	g	Dia	Holes	h	BL	SOH
10	17.3	17.8	90	12	16	26	28	4	1	46	65	4	15	M12	0.53	0.52
15	21.7	22.2	95	12	16	30	32	4	1	51	70	4	15	M12	0.6	0.58
20	27.2	27.7	100	14	20	38	42	4	1	56	75	4	15	M12	0.79	0.75
32	42.7	43.2	135	16	22	56	60	5	2	76	100	4	19	M16	1.66	1.53
40	48.6	49.1	140	16	24	62	66	5	2	81	105	4	19	M16	1.79	1.64
50	60.5	61.1	155	16	24	76	80	5	2	96	120	8	19	M16	2.09	1.83
65	76.3	77.1	175	18	26	94	98	5	2	116	140	8	19	M16	3.08	2.58
80	89.1	90	200	20	28	108	112	6	2	132	160	8	23	M20	4.41	3.61
25	34	34.5	125	14	20	46	50	4	1	67	90	4	19	M16	1.22	1.16
-90	101.6	102.6	210	20	30	120	124	6	2	145	170	8	23	M20	4.92	3.89
100	114.3	115.4	225	22	34	134	138	6	2	160	185	8	23	M20	6.29	4.87
125	139.8	141.2	270	22	34	164	170	6	2	195	225	8	25	M22	9.21	7.09
200	216.3	218	350	26	40	244	252	6	2	275	305	12	25	M22	18.4	12
250	267.4	269.5	430	28	44	304	312	6	2	345	380	12	27	M24	30.4	20.1
300	318.5	321	480	30	48	354	364	8	3	395	430	16	27	M24	40.5	24.3
150	165.2	166.6	305	24	38	196	202	6	2	230	260	12	25	M22	12.7	9.57
350	355.6	358.1	540	34	52	398	408	8	3	440	480	16	33	M30×3	57.5	34.4
400	406.4	409	605	38	60	446	456	10	3	495	540	16	33	M30×3	81.7	47.4
450	457.2	460	675	40	64	504	514	10	3	560	605	20	33	M30×3	107	61.8
500	508	511	730	42	68	558	568	10	3	615	660	20	33	M30×3	132	73.7
600	609.6	613	845	46	74	666	676	10	3	720	770	24	39	M36×3	192	98.4
650	660.4	664	895	48	77	704	726	10	5	770	820	24	39	M36×3	–	–
700	711.2	715	960	50	80	754	776	10	5	820	875	24	42	M39×3	–	–
750	762	766	1020	52	83	806	832	10	5	880	935	24	42	M39×3	–	–
-550	558.8	562	795	44	70	612	622	10	3	670	720	20	39	M36×3	163	87.9
800	812.8	817	1085	54	86	865	885	10	5	930	990	24	48	M45×3	–	–
850	863.6	868	1135	56	89	916	936	10	5	980	1040	24	48	M45×3	–	–
1000	1016	1021	1320	62	99	1070	1098	12	5	1140	1210	28	56	M52×3	–	–
1100	1117.6	1123	1420	66	105	1180	1200	12	15	1240	1310	32	56	M52×3	–	–
1200	1219.2	1225	1530	70	112	1282	1302	12	5	1350	1420	32	56	M52×3
1300	1320.8	1326	1645	74					5	1450	1530	32	62	M56×3
900	914.4	919	1185	58	93	968	986	10	5	1030	1090	28	48	M45×3	–	–
1350	1371.6	1377	1700	76					5	1510	1590	32	62	M56×3
1400	1422.4	1428	1755	78					5	1560	1640	36	62	M56×3
1500	1524	1529	1865	80					5	1670	1750	36	62	M56×3

Weld Neck Flange Manufacturing Process

Weld Neck Flange Schedule Chart

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
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
3/4”	1.050	0.884	–	–	0.824	0.824	–	0.742	0.742	–	–	–	0.612	0.434
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
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
5”	5.563	5.295	–	–	5.047	5.047	–	4.813	4.813	–	4.563	–	4.313	4.063
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
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	–
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
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	–	–	–	–	–	–
42”	42.000	–	–	–	41.250	–	–	41.000	–	–	–	–	–	–
36”	36.000	35.376	35.000	34.750	35.250	34.500	–	35.000	–	–	–	–	–	–

SS WNRF Flange Weight Chart

Nom Pipe Size	Class 150LBS			Class 300LBS			Class 600LBS			Class 900LBS			Class 1500LBS			Class 2500LBS
	Weld Neck	Slip On	Blind	Weld Neck	Slip On	Blind	Weld Neck	Slip On	Blind	Weld Neck	Slip On	Blind	Weld Neck	Slip On	Blind	Weld Neck	Slip On	Blind
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”	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
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
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
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
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
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
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
16”	61.5	44.5	61	112	88	139	177	150	225	225	192	259	567

Stainless Steel Weld Neck Flange Pressure Ratings

Temperature °F	Class 150 LBS	Class 300 LBS	Class 400 LBS	Class 600 LBS	Class 900 LBS	Class 1500 LBS	Class 2500 LBS
-20 to 100	275	720	960	1440	2160	3600	6000
300	215	560	745	1120	1680	2795	4660
1300	20	115	155	235	350	585	970
400	195	515	685	1025	1540	2570	4280
500	170	480	635	955	1435	2390	3980
600	140	450	600	900	1355	2255	3760
650	125	445	590	890	1330	2220	3700
1500	20	40	55	85	125	205	345
700	110	430	580	870	1305	2170	3620
1050	20	345	460	685	1030	1720	2865
200	235	620	825	1240	1860	3095	5160
750	95	425	570	855	1280	2135	3560
800	80	420	565	845	1265	2110	3520
850	65	420	555	835	1255	2090	3480
900	50	415	555	830	1245	2075	3460
950	35	385	515	775	1160	1930	3220
1000	20	350	465	700	1050	1750	2915
1100	20	305	405	610	915	1525	2545
1150	20	235	315	475	710	1185	1970
1200	20	185	245	370	555	925	1545
1250	20	145	195	295	440	735	1230
1350	20	95	130	190	290	480	800
1400	20	75	100	150	225	380	630
1450	20	60	80	115	175	290	485

Weld Neck Flange Tolerances

Dimension	Flange	Tolerance
A	Outside Diameter	When O.D. is 24" or less: ±1/16" (1.6mm) When O.D. is over 24": ±1/8" (3.2mm)
D	Inside Diameter	10" and smaller: ±1/32" (0.8mm) 12" thru 18": +1/8" (3.2mm) 20" and larger: -1/16" (1.6mm)
B	Diameter of contact face	1/16" raised face: ±1/32" (0.8mm) 1/4" Raised Face, Tongue & Groove (male & female): ±1/64" (0.4mm)
J	Diameter of hub at base	When hub base is 24" or smaller: ±1/16" (1.6mm) When hub base is over 24": ±1/8" (3.2mm)
H	Diameter of hub at point of welding	5" and smaller: +3/32" (2.4mm), -1/32" (0.8mm) 6" and larger: +5/32" (4.0mm), -1/32 (0.8mm)
P	Drilling	Bolt circle: ±1/16" (1.6mm) Bolt hole spacing: ±1/32" (0.8mm)
	Eccentricity of bolt circle with respect to facing	2 1/2" and smaller ±1/32" (0.8mm) max. 3" and larger ±1/16" (1.6mm) max.
C	Thickness	18" and smaller: ±1/8" (3.2mm), -0" 20" and larger: ±3/16" (4.8mm), -0"
K	Length of hub	10" and smaller: ±1/16" (1.6mm) 12" and larger: ±1/8" (3.2mm)

SS Weld Neck Flange Hs Code

HS Code	Description	Unit
73079190	FLANGES RF WELD NECK 300 STD	KGS

Our regular consignments to following Places

Products	We supplied to following Locations
Reducing Weld Neck Flange	Germany, Czechia, Thailand, Malaysia
6 Weld Neck Flange	Philippines, Dammam -KSA, Indonesia, Belgium
En Weld Neck Flange	Norway, United Arab Emirates (UAE), Turkey, Malaysia
Astm A105n Wn Flange, 10 Inch, Class 150 Lb, Sch 40	France, Qatar, Europe, Thailand
Astm A182 Weld Neck Flange, 150 Lb, 12 Inch, Sch 40, Rf	Bangladesh, Malaysia, USA, Finland
Stainless Steel En 1092-1 Wn Flange, Dn 100, Pn 16	Saudi Arabia (KSA), South Africa, Kuwait, Brazil
Stainless Steel Weld Neck Flanges	South Africa, Bahrain, Singapore, Singapore
Asme A694 F60 Weld Neck Flange, 14 Inch, 1500 Lb, Sch 160, Rtj	UK, Philippines, Australia, Nigeria
Weld Neck Pipe Flanges	Malaysia, Oman, Hong Kong, UAE
Ss Forged Wn Flange, Astm A182 F316l, 2 1/2 Inch, Sch 80s, B16.5	Taiwan, Malaysia, Los Alamos -Mexico, Philippines
Astm A182 F316l Weld Neck Flange, Ansi B16.5, Class 900, 14 Inch	Italy, Chile, Iran, Singapore
Ansi B16.5 150lbs Weld Neck Carbon Steel Pipe Flanges	Canada, UK, Poland, Ellington -United States
A182 F316 F316l Stainless Steel Weld Neck Flange	Russia, Netherlands, Malaysia, Dubai
Ansi Class150 Stainless Steel Weld Neck Flange	Spain, Egypt, Mexico, UK
Din Standard Pn10 Titanium Forging Weld Neck Flange	Malaysia, United Kingdom -UK, Europe, UAE
Ansi B16.5 Gr2 Wn Rf Welding Neck Titanium Flange	Malaysia, Philippines, Canada, Singapore
Ansi B16.5 Carbon Steel Weld Neck Flange	Romania, Europe, Japan, Malaysia
Flat Weld Neck Stainless Steel Floor Flange	Colombia, Sweden, Malaysia, China
Ansi B16.5 Class 150 6 Inch 304 Stainless Steel Weld Neck Flange	South Korea, Singapore, NY 12203 (USA), Malaysia

Stainless Steel Weld Neck Flange