Stainless Steel Weld Neck Flange | Carbon Steel WNRF/WNFF Manufacturer

Table Of Content:

Carbon Steel WNRF Flange Manufacturer in India, View Specification

ASME B16.5 Weld Neck Flange Specification

Most Selling Size :

½ – 48 inch
15 – 1200 NB

Size :

For large diameter flanges
NPS 26 to NPS 60 (ASME B16.47)

Manufacturing Technique :

Cast
Forged
Plate

Schedule :

SCH 10/ 20/ 40
SCH 60/ 80/ 100
SCH 120/ 140
SCH 160/ 180

Pressure :

Class 125, 150
Class 300, 400
Class 600, 900
Class 1500, 2500

Standard :

ASME B16.5 : 1/2″ To 24″
ASME B16.47 : 24″ To 60″

Manufacturing Way :

Forged / drilling
Rolled/ Turning
CNC machining
Milling / stamping

Type :

Slip On Flat weld neck Flanges
Slip On Raised weld neck Flanges
Slip On RTJ Flange

Bolts Hole :

4 To 24

Process :

Material selection & cutting
Shaping
Heat treatment & forming
Forging & machining
Surface finish

Threads :

BSPP (Male & female)
MNPT (Male)
MPT/ BSPT (Female)
NPT/ BSP/ FPT

Resistance :

Nitric Acid
Sulfuric Acidr
Hydrochloric Acid
Alkalies and Salts
Phosphoric Acid
Organic Acid
Seawater

Coating :

Oil Black Paint
Anti-rust Paint
Zinc Plated
Yellow Transparent

Surface Treatment Type :

Mirror finish
Cold water finish
Concentric serrated
Stock finish
Serrated & smooth finish
Spiral serrated

Uses :

Power generation plant
Petrochemical plants
Petrochemicals industry
Oil & gas plants
Nuclear energy sector
Sea water exchanger

Types Of Packaging :

Carton box
Plastic bag
Wooden case
Or custom as required

Logistics Way :

By Air
By Sea
Saudi Arabia = 7 to 8 day
UAE = 6 to 7 day
Oman = 5 to 6 days

Services :

Drilling/ Electroplating
Threading/ Forging
Cutting/ Minor Fabrication
CNC machined/ Casting
Sand Blasting/ Rolling

Types Of Connection :

Threaded
Welding

Available Material:

Carbon steel
Nickel alloy
Titanium
Copper nickel
Alloy steel
Stainless steel

Testing :

Impact test
Material inspection
Hardness test
Tensile test
Visual inspection
PMI test

For More Information Please Contact US

Carbon Steel Long Weld Neck Flange in PN10/ PN16/ PN25 Weight Chart, view SS WNFF Flange Price List and Standard

SS Weld Neck Flange Price

Type = Weld Neck Flange
Grade = ASTM A182 F316

Size In Inch	SCH	Class	Price In US$ (Dollar) per unit	Price In Dirham (AED) per unit
3/4	40	150	US$1.74	6.39
1	40	150	US$2.80	10.28
2	40	150	US$4.11	15.10
3	40	150	US$8.12	29.82
4	80	300	US$12.78	46.94
6	80	300	US$16.51	60.64
8	80	300	US$21.17	77.76
10	80	300	US$25.94	95.28
12	80	300	US$30.71	112.80

Carbon Steel Weld Neck Flange Price

Type = Weld Neck Flange
Grade = ASTM A105

Size In Inch	SCH	Class	Price In US$ (Dollar) per unit	Price In Dirham (AED) per unit
3/4	40	150	US$1.61	5.91
1	40	150	US$2.00	7.35
2	40	150	US$3.20	11.75
3	40	150	US$7.82	28.72
4	40	150	US$10.47	38.46
6	40	150	US$11.83	43.45
8	40	150	US$15.13	55.57
10	40	150	US$22.48	82.57

Advantages Of Weld Neck Flange

Mechanical strength
High integrity
Available in all sizes
Choice of face types
various classes and grades available
providing the perfect sealing solution.
ring-type joint gasket helps connect elbows, tees, and even reducers

DIN Standard Of Weld Neck Flange

DIN 2632
DIN 2633
DIN 2635
DIN 2503
DIN 2630
DIN 2634

DIN 2631
DIN 2636
DIN 2637
DIN 2638
DIN 2628
DIN 2629
DIN 2627
DIN 86057 Welding On flanges

BS standard Of Weld Neck Pipe Flanges

BS 3293 Class 150 Weld Neck flange
BS 3293 Class 300 Weld Neck flange
BS 3293 Class 400 Weld Neck flange
BS 3293 Class 600 Weld Neck flange

JIS standard Of Weld Neck Flange

JIS B2220
JIS B2311
JIS B2312
JIS B2313
KS B1522
KS B1541
KS B1543
KS1503

UNI standard Of RFWN Flange

UNI 2280-67
UNI 2281-67
UNI 2284-67
UNI 2283-67
UNI 2285-67
UNI 2286-67
UNI 2282-67

PN 10 weld neck flange weight

DN	PN 10 KG
10	0.678
15	0.768
20	1.09
25	1.30
32	1.91
40	2.15
50	2.53
65	3.03
80	3.92
100	4.62
125	6.30
150	7.81
200	11.6

PN 16 weld neck flange weight

DN	PN 16 KG
10	0.678
15	0.768
20	1.09
25	1.30
32	1.91
40	2.15
50	2.53
65	3.03
80	3.92
100	4.62
125	6.30
150	7.81
200	11.5

PN 25 weld neck flange weight

DN	PN 25 KG
10	0.678
15	0.768
20	1.09
25	1.30
32	1.91
40	2.15
50	2.85
65	3.68
80	4.78
100	6.46
125	8.86
150	11.7
200	–

Types Of Stainless Steel Weld Neck Flange

SS Weld Neck Flange

Stainless Steel Long Weld Neck Flange

LWNRF Flange

WNRF Flange

Welding Neck Flange

Weld Neck Pipe Flanges

Raised Face Weld Neck Flange

Flat Face Weld Neck Flange

Reducing Weld Neck Flange

Weld Neck Orifice Flange

Rtj Weld Neck Flange

Slip On Flange Welding

Long Welding Neck

3 Inch Weld Neck Flange

6 Inch Weld Neck Flange

Types Of Carbon Steel Weld Neck Flange

CS Weld Neck Flange

Flange Wn Rf

Carbon Steel Weld Neck Flange

Wn Flange

Carbon Steel Long Weld Neck Flanges

CS Weld Neck Flange

4 Inch Weld Neck Flange

12 Inch Weld Neck Flanges

Weldneck Flange

8 Inch Weld Neck Flange

Neck Flange

Well Neck Flange

Straight Hub Welding Flanges

ASME B16.5 Weld Neck Flange

Other Materials Of ASME B16.5 Weld Neck Flange

Duplex Weld Neck Flange

Super Duplex Weld Neck Flanges

Titanium Weld Neck Flanges

Mild Steel Weld Neck Flange

Nickel Alloy Weld Neck Flanges

Copper Weld Neck Flanges

Inconel Weld Neck Flanges

Ductile Iron Weld Neck Flanges

Aluminum Weld Neck Flanges

Alloy Steel Weld Neck Flanges

ASTM A350 LF2 Weld Neck Flanges

UNS S31803 Weld Neck Flanges

Manufacturing Weld Neck Flange materials according to ASTM A182 F304/ F316/ A105/ A105N/ A694 and A350 LF2/ LF6

Weld Neck Flange Material Grade

Brass Weld Neck Flange	Inconel Weld Neck Flange	Carbon Steel Weld Neck Flange
3602 / 2604 / H59 / H62	Inconel 600/ 601/ 625/ 718/ 783/ 690/ x750 Weld Neck Flange	High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel Weld Neck Flange	Alloy Steel Weld Neck Flange	Titanium Weld Neck Flange
ASTM/ASME A/SA182 F304, F304L, F316, F316	ASTM A182 / ASME SA182 F5/ F9/ F11/ F12/ F22/ F91	Titanium Gr. 1, Titanium Gr. 2/ Titanium Gr. 4/ Titanium Gr. 5/ Titanium Gr. 7
Hastelloy Weld Neck Flange	Monel Weld Neck Flange	Copper Weld Neck Flange
Hastelloy C276 (UNS N10276)/ C22 (UNS N06022)	Monel 400 (UNS No. N04400)/ Monel 500 (UNS No. N05500)	T1, T2, C10100/ C10200/ C10300/ C10400/ C10500/ C10700/ C10800
Copper Nickel Weld Neck Flange	Alloy 20 Weld Neck Flange	Aluminium Weld Neck Flange
Copper Nickel 90/10 (C70600 )/ Cupro Nickel 70/30 (C71500)/ UNS C71640	ASTM B462 / ASME SB462/ Carpenter® 20 Alloy/ Alloy 20Cb-3	5052 /6061/ 6063 / 2017 / 7075
Nickel Weld Neck Flange	Duplex Weld Neck Flange	Super Duplex Weld Neck Flange
Nickel 200/ Nickel 201/ Nickel 205/ Nickel 205LC	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55
Incoloy Weld Neck Flange	254 Smo Weld Neck Flange	Nimonic Weld Neck Flange
Incoloy 800/ 800H/ 800HT (UNS N08800)/ 825 (UNS N08825)	UNS S31254/ DIN 1.4547	Nimonic 75/ Nimonic 80A/ Nimonic 90
Other Weld Neck Flange material
Tin bronze/ Alumunum bronze/ Lead bronze

LWNRF Flange Full Form

Long Weld Neck Raised Face (LWNRF) flanges

Burr free ANSI B16.5 Duplex Steel Weld Neck Pipe Flanges Supplier in Mumbai, Call Vishal Steel For Free Sample!, View Class 150 to 2500 Dimensions in RF/ RTJ/ FF

PN16 WNRF Flange Dimensions

Diameter Of WNRF	WNRF Flange					Weld Neck				Raised face (RF)		Screws			Weight In Kilogram
Diameter Of WNRF	(d1)	(k)	(D)	(b)	(h1)	(d3)	(s)	(r)	(h2)	(d4)	(f)	(d2)	(Thread)	(Bolts holes)	(Kilogram)
15	21,3	65	95	16	38	32	2,00	4	6	45	2	14	M12	4	0,678
20	26,9	75	105	18	40	40	2,30	4	6	58	2	14	M12	4	0,768
25	33,7	85	115	18	40	46	2,60	4	6	68	2	14	M12	4	1,090
32	42,4	100	140	18	42	56	2,60	6	6	78	2	18	M16	4	1,300
40	48,3	110	150	18	45	64	2,60	6	7	88	3	18	M16	4	1,910
50	60,3	125	165	18	45	74	2,9	6	8	102	3	18	M16	4	2,530
65	76,1	145	185	18	45	92	2,9	6	10	122	3	18	M16	4	3,030
80	88,9	160	200	20	50	105	3,2	6	10	138	3	18	M16	8	3,920
100	114,3	180	220	20	52	131	3,6	8	12	158	3	18	M16	8	4,620
125	139,7	210	250	22	55	156	4,0	8	12	188	3	18	M16	8	6,300
150	168,3	240	285	22	55	184	4,5	10	12	212	3	22	M20	8	7,810
200	219,1	295	340	24	62	235	6,30	10	16	268	3	22	M20	12	11,500
250	273,0	355	405	26	70	292	6,30	12	16	320	3	26	M24	12	16,700
300	323,9	410	460	28	78	344	7,10	12	16	378	4	26	M24	12	22,100
350	355,6	470	520	30	82	390	8,00	12	16	438	4	26	M24	16	32,800
400	406,4	525	580	32	85	445	8,00	12	16	490	4	30	M27	16	41,100
450	457,0	585	640	34	83	490	8,00	12	16	550	4	30	M27	20	48,500
500	508	650	715,0	36	84	548	8,0	12	16	610	4	33	M30	20	63,400
600	610	770	840,0	40	88	670	10,0	12	18	725	5	36	M33	20	96,000
700	711	840	910,0	40	104	755	10,0	12	18	795	5	36	M33	24	96,500
800	813	950	1025,0	41	108	855	12,5	12	20	900	5	39	M36	24	122,000
900	914	1050	1125,0	48	118	955	12,5	12	20	1000	5	39	M36	28	155,000
1000	1016	1170	1255,0	59	137	1058	12,5	16	22	1115	5	42	M39	28	233,000
1200	1219	1390	1485,0	78	160	1262	14,2	16	30	1330	5	48	M45	32	390,000
1400	1422	1590	1685,0	84	177	1465	16,0	16	30	1530	5	48	M45	36	495,000
1600	1626	1820	1930,0	102	204	1668	17,5	16	35	1750	5	56	M52	40	760,000
1800	1829	2020	2130,0	110	218	1870	20,0	16	35	1950	5	56	M52	44	929,000
2000	2032	2230	2345,0	124	238	2072	22,0	16	40	2150	5	62	M56	48	1.185,000

Heavy Barrel Flange Dimensions

Normal Pipe Size	O.D. of WNRF Flange (A)	Diameter of (RF) Of (B)	Thickness of (WN Flange) C	Bore of Diameter (D)	Diameter of Hub at Base (J)	Length of (Hub) K	Nut Stop Dia. NS	Nut Relief Dia. NR	Nut Relief Length NL	Nunber of Bolt Holes	Diamete of Bolts Holes (B.H.)	B.C. Diameter P	Weight In KG
1/2	3 1/2	1 3/8	7/16	0.55	1 1/4	9	1 1/2	1 1/4	3/4	4	5/8	2 3/8	5
3/4	3 7/8	1 11/16	1/2	0.74	1 5/8	9	1 7/8	1 5/8	3/4	4	5/8	2 3/4	7
1	4 1/4	2	9/16	0.96	2	9	2 1/ 4	2	3/4	4	5/8	3 1/8	10
1 1/4	4 5/8	2 1/2	5/8	1.28	2 3/8	9	2 5/8	2 3/8	3/4	4	5/8	3 1/2	12
1 1/2	5	2 7/8	11/16	1.50	2 5/8	9	3	2 5/8	3/4	4	5/8	3 7/8	16
2	6	3 5/8	3/4	1.94	3 1/4	9	3 11/ 16	3 1/16	7/8	4	3/4	4 3/4	23
2 1/2	7	4 1/8	7/8	2.32	3 3/4	9	4 7/16	3 3/4	7/8	4	3/4	5 1/2	34
3	7 1/2	5	15/16	2.90	4 1/4	9	4 15/15	4 1/4	7/8	4	3/4	6	38
3 1/2	8 1/2	5 1/2	15/16	3.36	4 7/8	9	5 15/16	4 7/8	7/8	8	3/4	7	55
4	9	6 3/16	15/16	3.83	5 1/2	12	6 7/16	5 1/2	7/8	8	3/4	7 1/2	78
5	10	7 5/16	15/16	4.81	6 1/2	12	7 1/2	6 1/2	1	8	7/8	8 1/2	87
6	11	8 1/2	1	5.76	7 3/4	12	8 1/4	7 3/4	1	8	7/8	9 1/2	103
8	13 1/2	10 5/8	1 1/8	7.62	9 3/4	12	10 1/2	9 3/4	1	8	7/8	11 3/4	157
10	16	12 3/4	1 3/16	9.56	12	12	12 7/8	12	1 1/8	12	1	14 1/4	214
12	19	15	1 1/4	11.38	14 3/8	12	15 9/16	14 3/8	1 1/2	12	1	17	329
14	21	16 1/4	1 3/8	14.00	16	12	17 1/8	16	1 1/4	12	1 1/8	18 3/4	296
16	23 1/2	18 1/2	1 7/16	16.00	18	12	19 5/8	18	1 1/4	16	1 1/8	21 1/4	388
18	25	21	1 9/16	18.00	20	12	20 15/16	20	1 3/8	16	1 1/4	22 3/4	362
20	27 1/2	23	1 11/16	20.00	22	12	23 3/16	22	1 3/8	20	1 1/4	25	434
22	-	-	-	-	-	-	-	-	-	-	-	-	-
24	32	27 1/4	1 7/8	24.00	26 1/4	12	27 1/2	26 1/4	1 1/2	20	1 3/8	29 1/2	574

Long Weld Neck Nozzle Thickness Chart

Normal Size Of Steel Pipe	Outer Diameter (O.D.)	20 Schedule	40 Schedule	80 Schedule
½	0.84	...	0.109	0.147
¾	1.05	...	0.113	0.154
1	1.315	...	0.133	0.179
1 ¼	1.66	...	0.14	0.191
1 ½	1.9	...	0.145	0.2
2	2.375	...	0.154	0.218
2 ½	2.875	...	0.203	0.276
3	3.5	-	0.216	0.3
3 ½	4	-	0.226	0.318
4	4.5	-	0.237	0.337
5	5.563	-	0.258	0.375
6	6.625	-	0.28	0.432
8	8.625	0.25	0.322	0.5
10	10.75	0.25	0.365	0.594
12	12.75	0.25	0.406	0.688
14	14	0.312	0.438	0.75
16	16	0.312	0.5	0.844
18	18	0.312	0.562	0.938
20	20	0.375	0.594	1.031
22	22	-	-	-
24	24	0.375	0.688	1.219
26	26	-	-	-
30	30	0.5	-	-

Raised Face Long Weld Neck Flange Dimensions

Normal Pipe Size	O. D. of Flange (A)	Diameter of R F (B)	Thickness of Flange (C)	Diameter of Bore (D)	Diameter of Hub at Base (J)	Length of Hub (K)	Diamete of Bolt Holes	Nunber of Bolt Hole (B.H.)	Weight In Kilogram	Bolt C.D. P
1/2	3 1/2	1 3/8	7/16	0.50	1 1/4	9	5/8	4	3	2 3/8
3/4	3 7/8	1 11/16	1/2	0.75	1 5/8	9	5/8	4	5	2 3/4
1	4 1/4	2	9/16	1.00	2	9	5/8	4	8	3 1/8
1 1/4	4 5/8	2 1/2	5/8	1.25	2 3/8	9	5/8	4	10	3 1/2
1 1/2	5	2 7/8	11/16	1.50	2 5/8	9	5/8	4	12	3 7/8
2	6	3 5/8	3/4	2.00	3 1/4	9	3/4	4	16	4 3/4
2 1/2	7	4 1/8	7/8	2.50	3 3/4	9	3/4	4	21	5 1/2
3	7 1/2	5	15/16	3.00	4 1/4	9	3/4	4	24	6
3 1/2	8 1/2	5 1/2	15/16	3.60	4 7/8	9	3/4	8	31	7
4	9	6 3/16	15/16	4.00	5 1/2	12	3/4	8	47	7 1/2
5	10	7 5/16	15/16	5.00	6 1/2	12	7/8	8	57	8 1/2
6	11	8 1/2	1	6.00	7 3/4	12	7/8	8	77	9 1/2
8	13 1/2	10 5/8	1 1/8	8.00	9 3/4	12	7/8	8	103	11 3/4
10	16	12 3/4	1 3/16	10.00	12	12	1	12	150	14 1/4
12	19	15	1 1/4	12.00	14 3/8	12	1	12	215	17
14	21	16 1/4	1 3/8	14.00	16	12	1 1/8	12	221	18 3/4
16	23 1/2	18 1/2	1 7/16	16.00	18	12	1 1/8	16	254	21 1/4
18	25	21	1 9/16	18.00	20	12	1 1/4	16	27	22 3/4

ASME B16.5 Weld Neck Flange Packaging

Stainless Steel Weld Neck Flange Dimensions

Class 150 Weld Neck Flange Dimensions In mm

Normal Size Of Steel Pipe in Inch	NPS (Normal Pipe Size) Size in Millimeter	O.D.	Wall Thickness	Hub Outer Diameter	Weld Neck Outer Diameter	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	90	9.6	30	21.3	46	34.9	2	60.3	1.6
3/4	20	100	11.2	38	26.7	51	42.9	2	69.9	1.6
1	25	110	12.7	49	33.4	54	50.8	2	79.4	1.6
1 1/4	32	115	14.3	59	42.2	56	63.5	2	88.9	1.6
1 1/2	40	125	15.9	65	48.3	60	73	2	98.4	1.6
2	50	150	17.5	78	60.3	62	92.1	2	120.7	1.6
2 1/2	65	180	20.7	90	73	68	104.8	2	139.7	1.6
3	80	190	22.3	108	88.9	68	127	2	152.4	1.6
3 1/2	90	215	22.3	122	101.6	70	139.7	2	177.8	1.6
4	100	230	22.3	135	114.3	75	157.2	2	190.5	1.6
5	125	255	22.3	164	141.3	87	185.7	2	215.9	1.6
6	150	280	23.9	192	168.3	87	215.9	2	241.3	1.6
8	200	345	27	246	219.1	100	269.9	2	298.5	1.6
10	250	405	28.6	305	273	100	323.8	2	362	1.6
12	300	485	30.2	365	323.8	113	381	2	431.8	1.6
14	350	535	33.4	400	355.6	125	412.8	2	476.3	1.6
16	400	595	35	457	406.4	125	469.9	2	539.8	1.6
18	450	635	38.1	505	457.2	138	533.4	2	577.9	1.6
20	500	700	41.3	559	508	143	584.2	2	635	1.6
24	600	815	46.1	663	610	151	692.2	2	749.3	1.6

Weld Neck Flange Class 300 Dimensions

Normal Size Of Steel Pipe in Inch	Normal Size Of Steel Pipe In Millimeter	O.D.	Outer Daimeter Of Hub	Outer Daimeter Of WNRF	Wall Thickness	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	95	38	21.3	12.7	51	34.9	2	66.7	1.6
3/4	20	115	48	26.7	14.3	56	42.9	2	82.6	1.6
1	25	125	54	33.4	15.9	60	50.8	2	88.9	1.6
1 1/4	32	135	64	42.2	17.5	64	63.5	2	98.4	1.6
1 1/2	40	155	70	48.3	19.1	67	73	2	114.3	1.6
2	50	165	84	60.3	20.7	68	92.1	2	127	1.6
2 1/2	65	190	100	73	23.9	75	104.8	2	149.2	1.6
3	80	210	117	88.9	27	78	127	2	168.3	1.6
3 1/2	90	230	133	101.6	28.6	79	139.7	2	184.2	1.6
4	100	255	146	114.3	30.2	84	157.2	2	200	1.6
5	125	280	178	141.3	33.4	97	185.7	2	235	1.6
6	150	320	206	168.3	35	97	215.9	2	269.9	1.6
8	200	380	260	219.1	39.7	110	269.9	2	330.2	1.6
10	250	445	321	273	46.1	116	323.8	2	387.4	1.6
12	300	520	375	323.8	49.3	129	381	2	450.8	1.6
14	350	585	425	355.6	52.4	141	412.8	2	514.4	1.6
16	400	650	483	406.4	55.6	144	469.9	2	571.5	1.6
18	450	710	533	457	58.8	157	533.4	2	628.6	1.6
20	500	775	587	508	62	160	584.2	2	685.8	1.6
24	600	915	702	610	68.3	167	692.2	2	812.8	1.6

Class 400 Weld Neck Flange Dimensions

Normal Size Of Steel Pipe in Inch	Normal Size Of Steel Pipe In Millimeter	O.D.	Wall Thickness	Outer Daimeter Of Hub	Outer Daimeter Of WNRF	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	95	14.3	38	21.3	52	34.9	7	66.7	1.6
3/4	20	115	15.9	48	26.7	57	42.9	7	82.6	1.6
1	25	125	17.5	54	33.4	62	50.8	7	88.9	1.6
1 1/4	32	135	20.7	64	42.2	67	63.5	7	98.4	1.6
1 1/2	40	155	22.3	70	48.3	70	73	7	114.3	1.6
2	50	165	25.4	84	60.3	73	92.1	7	127	1.6
2 1/2	65	190	28.6	100	73	79	104.8	7	149.2	1.6
3	80	210	31.8	117	88.9	83	127	7	168.3	1.6
3 1/2	90	230	35	133	101.6	86	139.7	7	184.2	1.6
4	100	255	35	146	114.3	89	157.2	7	200	1.6
5	125	280	38.1	178	141.3	102	185.7	7	235	1.6
6	150	320	41.3	206	168.3	103	215.9	7	269.9	1.6
8	200	380	47.7	260	219.1	117	269.9	7	330	1.6
10	250	445	54	321	273	124	323.8	7	387.4	1.6
12	300	520	57.2	375	323.8	137	381	7	450.8	1.6
14	350	585	60.4	425	355.6	149	412.8	7	514.4	1.6
16	400	650	63.5	483	406.4	152	469.9	7	571.5	1.6
18	450	710	66.7	533	457	165	533.4	7	628.6	1.6
20	500	775	69.9	587	508	168	584.2	7	685.8	1.6
24	600	915	76.2	702	610	175	692.2	7	812.8	1.6

Class 600 Weld Neck Flange Dimensions In mm

Normal Size Of Steel Pipe in Inch	Normal Size Of Steel Pipe In Millimeter	O.D.	Wall Thickness	Outer Daimeter Of Hub	Outer Daimeter Of WNRF	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	95	14.3	38	21.3	52	34.9	7	66.7	1.6
3/4	20	115	15.9	48	26.7	57	42.9	7	82.6	1.6
1	25	125	17.5	54	33.4	62	50.8	7	88.9	1.6
1 1/4	32	135	20.7	64	42.2	67	63.5	7	98.4	1.6
1 1/2	40	155	22.3	70	48.3	70	73	7	114.3	1.6
2	50	165	25.4	84	60.3	73	92.1	7	127	1.6
2 1/2	65	190	28.6	100	73	79	104.8	7	149.2	1.6
3	80	210	31.8	117	88.9	83	127	7	168.3	1.6
3 1/2	90	230	35	133	101.6	86	139.7	7	184.2	1.6
4	100	275	38.1	152	114.3	102	157.2	7	215.9	1.6
5	125	330	44.5	189	141.3	114	185.7	7	266.7	1.6
6	150	355	47.7	222	168.3	117	215.9	7	292.1	1.6
8	200	420	55.6	273	219.1	133	269.9	7	349.2	1.6
10	250	510	63.5	343	273	152	323.8	7	431.8	1.6
12	300	560	66.7	400	323.8	156	381	7	489	1.6
14	350	605	69.9	432	355.6	165	412.8	7	527	1.6
16	400	685	76.2	495	406.4	178	469.9	7	603.2	1.6
18	450	745	82.6	546	457	184	533.4	7	654	1.6
20	500	815	88.9	610	508	190	584.2	7	723.9	1.6
24	600	940	101.6	718	610	203	692.2	7	838.2	1.6

Class 900 Weld Neck Flange Dimensions

Normal Size Of Steel Pipe in Inch	Normal Size Of Steel Pipe In Millimeter	O.D.	Wall Thickness	Outer Daimeter Of Hub	Outer Daimeter Of WNRF	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	120	22.3	38	21.3	60	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

Class 1500 Weld Neck Flange Dimensions In mm

Size in Inch	Normal Size Of Steel Pipe In Millimeter	O.D.	Wall Thickness	Outer Daimeter Of Hub	Outer Daimeter Of WNRF	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	120	22.3	38	21.3	60	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	265	47.7	133	88.9	117	127	7	203.2	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
8	200	485	92.1	292	219.1	213	269.9	7	393.7	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
14	350	750	133.4	495	355.6	298	412.8	7	635	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
24	600	1170	203.2	762	610	406	692.2	7	990.6	1.6

Weld Neck Flange Dimensions Class 2500

Size in Inch	Normal Size Of Steel Pipe In Millimeter	O.D.	Thickness Of Weld Neck Flanges	Outer Daimeter Of Hub	Outer Daimeter Of WNRF	ASME B16.5 WNRF Length	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(G)	(H)	(I)	(J)
1/2	15	135	30.2	43	21.3	73	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	25	160	35	57	33.4	89	50.8	7	108	1.6
1 1/4	32	185	38.1	73	42.2	95	63.5	7	130.2	1.6
1 1/2	40	205	44.5	79	48.3	111	73	7	146	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
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
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
12	300	760	184.2	441	323.8	464	381	7	619.1	1.6

ASME B16.5 Weld Neck Flange Machineries And Equivalent

Tee Beveling Machine
CNC Lath
Oil Fired Heat Treatment Furnace
Hydraulic Press 300 Tons Capacity
Radial Driling Machine
Elbow Beveling Machine

Conventional Machine
Tee Cold Forming Machines
Elbow Cold Forming Machines
Heat Treatment For Forged Fittings
Hydraulic Press 150 Tons Capacity
Portable Temperature Indicator

Ready Sizes Of Alloy Steel Weld Neck Orifice Flange and MS Reducing Weld Neck Flange in India, Refer A182 Gr F11 Long Welding Neck Flange Pressure Ratings & Manufacturing Process.

Class 150 Weld Neck Flange Pressure Ratings

Service Temp (°F)	Cr - Mo
100	290
200	260
300	230
400	200
500	170
600	1140
650	125
700	110
750	95
800	80
850	65
900	50
950	35
1000	20

Class 300 Weld Neck Flange Pressure Ratings

Service Temp (F)	Cr Mo
100	750
200	750
300	730
400	705
500	665
600	605
650	590
700	570
750	530
800	510
850	485
900	450
950	345
1000	215

Raised Face Weld Neck Flange Dimensions

Normal Sizes Of Steel Pipe In Inch	Class 150 RF Flanges
Normal Sizes Of Steel Pipe In Inch	Dia. Of RF Flanges In (Inches)	No. Of Raised Face Bolts	Dia. Of Raised Face Bolts In (Inches)	Dia. Of Bolts Hole In (Inches)	RF Bolts Circle In (Inches)
1/4	3-3/8	4	1/2	0.62	2-1/4
1/2	3-1/2	4	1/2	0.62	2-3/8
3/4	3-7/8	4	1/2	0.62	2-3/4
1	4-1/4	4	1/2	0.62	3-1/8
1-1/4	4-5/8	4	1/2	0.62	3-1/2
1-1/2	5	4	1/2	0.62	3-7/8
2	6	4	5/8	0.75	4-3/4
2-1/2	7	4	5/8	0.75	5-1/2
3	7-1/2	4	5/8	0.75	6
3-1/2	8-1/2	8	5/8	0.75	7
4	9	8	5/8	0.75	7-1/2
5	10	8	3/4	0.88	8-1/2
6	11	8	3/4	0.88	9-1/2
8	13-1/2	8	3/4	0.88	11-3/4
10	16	12	7/8	1	14-1/4
12	19	12	7/8	1	17
14	21	12	1	1.12	18-3/4
16	23-1/2	16	1	1.12	21-1/4
18	25	16	1-1/8	1.25	22-3/4
20	27-1/2	20	1-1/8	1.25	25
24	32	20	1-1/4	1.38	29-1/2

Flat Face Weld Neck Flange Dimensions

Normal Size Of Steel Pipe	FF Dia.		Inner Daimeter	Flat Face Holes Number	Flat Face Flanges Daimeter	Wall Thickness (WT)	Daimeter of (B.C.)	Bolt Hole Daimeter	Weight in Kilogram (Kg)
(DN)	(ISO)	(DIN)	(D5)	(BN)	(D)	(b)	(K)	(d2)	(Kilogram/PCS)
10	–	14	14.5	4	90	16	60	14	0.7
10	17.2	–	17.7	4	90	16	60	14	0.69
15	–	20	21	4	95	16	65	14	0.77
15	21.3	–	22	4	95	16	65	14	0.77
20	–	25	26	4	105	18	75	14	1.06
20	26.9	–	27.6	4	105	18	75	14	1.05
25	–	30	31	4	115	18	85	14	1.27
25	33.7	–	34.4	4	115	18	85	14	1.25
32	–	38	39	4	140	18	100	18	1.86
32	42.4	–	43.1	4	140	18	100	18	1.83
40	–	44.5	45.5	4	150	18	110	18	2.12
40	48.3	–	49	4	150	18	110	18	2.09
50	–	57	58.1	4	165	20	125	18	2.78
50	60.3	–	61.1	4	165	20	125	18	2.74
65	76.1	–	77.1	8	185	22	145	18	3.48
80	88.9	–	90.3	8	200	24	160	18	4.33
100	–	108	109.6	8	235	24	190	22	5.82
100	114.3	–	115.9	8	235	24	190	22	5.61
125	–	133	134.8	8	270	26	220	26	7.91
125	139.7	–	141.6	8	270	26	220	26	7.6
150	–	159	161.1	8	300	28	250	26	10.12
150	168.3	–	170.5	8	300	28	250	26	9.58
175	193.7	–	196.1	12	350	32	295	30	14.45
200	219.1	–	221.8	12	375	34	320	30	16.9
250	–	267	270.2	12	450	38	385	33	27.28
250	273	–	276.2	12	450	38	385	33	26.51
300	323.9	–	327.6	16	515	42	450	33	36.38
350	355.6	–	359.7	16	580	46	510	36	52.83
350	–	368	372.2	16	580	46	510	36	50.24
400	406.4	–	411	16	660	50	585	39	74.71
400	–	419	423.7	16	660	50	585	39	71.44
500	508	–	513.6	20	755	52	670	42	86.87
600	610	–	616.5	20	890	54	795	48	121.84
700	711	–	716	24	995	58	900	48	150.93
800	813	–	818	24	1140	64	1030	56	219.08
900	914	–	920	28	1250	70	1140	56	271.16
1000	1016	–	1022	28	1360	78	1250	56	344.95

ASME B16.5 Weld Neck Flange Test Certificates

100% Radiography Test Report
Raw Materials Certificate
Third Party Inspection Repor
EN 10204/3.1B,

Weld Neck Flange Gasket Type

Composite	Metallic – Ring Gasket	Non-Metallic
Spiral Wound Gaskets	Oval Ring Gasket	Compressed Non-Asbestos Fibre Gasket (CNAF)
Camprofile Gaskets	Octagonal Ring Gasket	PTFE Gasket
Metal Jacketed Gasket		Rubber Gasket

Weld Neck Flange Facing Types

Flat Face
Raised Face
Lap Joint
Ring Joint
Male And Female
Tongue And Groove

Applications Of Weld Neck Flange

Specialty Chemicals
Power Generation
Condensers
Chemical Equipment
Gas Processing
Pulp and Paper Industry

Sea Water Equipment
Pharmaceutical Equipment
Off-Shore Oil Drilling Companies
Petrochemicals
Heat Exchangers
Pharmaceuticals

Stainless Steel Weld Neck Flange Weight

Normal Size Of Steel Pipe In Inches	Size In Millimeter	WNRF Flanges Outer Daimeter (O.D.) In (MM)	WNRF Flanges Wall Thickness Of (D) In M)	(ANSI B16.5 Weld Neck Flanges)
1/2	15	88.9	11.2	0.5
3/4	20	98.6	0.6	0.7
1	25	108	14.2	1
1 1/4	32	117.3	15.7	1.3
1 1/2	40	127	17.5	1.7
2	50	152.4	19.1	2.6
2 1/2	65	177.8	22.4	4.1
3	80	190.5	23.9	4.9
3 1/2	90	215.9	23.9	6.1
4	100	228.6	23.9	6.8
5	125	254	23.9	8.6
6	150	279.4	25.4	10.6
8	200	342.9	28.4	17.6
10	250	406.4	30.2	24
12	300	482.6	31.8	36.5
14	350	533.4	35.1	48.4
16	400	596.9	36.6	60.6
18	450	635	39.6	68.3
20	500	698.5	42.9	84.5

ASME B16.5 Weld Neck Flange Value Added Services

Chemical Analysis – Spectro Analysis
Intergranular Corrosion (IGC) Test
Hardness Test
Chemical Equipment
Pitting Resistance Test

Positive Material Identification – PMI Testing
Micro and MacroTest
Flattening Test
Mechanical Testing Such as Tensile of Area

Weld Neck Flange Isometric Symbol

Type	Symbol	Image
Weld Neck Flange

Carbon Steel Weld Neck Flange Surface Finish

Mirror finish
Cold water finish
Concentric serrated Stock finish
Serrated & smooth finish
Spiral serrated

HS Code SS Weld Neck Flange

HS Code	Destination
73072100	Stainless Steel Weld Neck Flange

Welding Neck Flange Bolt Torque

Pipe Flange Size Inch	Pipe Flange Size MM	(Maximum) Radial Projection
Pipe Flange Size Inch	Pipe Flange Size MM	No Deeper Than the Bottom In Millimeter	Deeper Than the Bottom In Millimeter
1/2	15	3.0	1.5
3/4	20	3.0	1.5
1	25	3.0	1.5
1 1/4	32	3.0	1.5
1 1/2	40	3.0	1.5
2	50	3.0	1.5
2 1/2	65	3.0	1.5
3	80	4.5	1.5
3 1/2	90	6.0	3.0
4	100	6.0	3.0
5	125	6.0	3.0
6	150	6.0	3.0
8	200	8.0	4.5
10	250	8.0	4.5
12	300	8.0	4.5
14	350	8.0	4.5
16	400	10.0	4.5
18	450	12.0	6.0

ASME B16.5 Weld Neck Flange Documentation

Raw Material Test Reports
Fumigation Certificates
Fumigation Certificates
Guarantee Letter

QAP (Quality Assurance Plan)
NABL approved Laboratory Test Reports
Heat Treatment Charts
Commercial Invoice which includes HS Code

Class 300 weld neck flange bolt chart

Size in Inch	No of Bolts	RF Stud Length
1/2	4	65
3/4	4	75
1	4	75
1 1/4	4	85
1 1/2	4	90
2	8	90
2 1/2	8	100
3	8	110
3 1/2	8	110
4	8	115
5	8	120
6	12	120
8	12	140
10	16	160
12	16	170
14	20	180
16	20	190
18	24	195
20	24	205
24	24	230

Weld Neck Flange Sizes

Normal Pipe Size	DN
1/2	15
3/4	20
1	25
1 1/4	32
1 1/2	40
2	50
2 1/2	65
3	80
4	100

WNRF Flange Marking

size
item
specification and number
pressure rating, with unit
OD
WT, with unit
bore when applicable
std schedule when applicable,
material specification

2"
FLANGE
WNRF
ASME B16.5 #150
6" OD x 0.250"
152.4 Unit
Bore 15.500"
SCH 10S
ASTM A182 F316L

Weld Neck Flange Tolerances

Dimension	Flange	Tolerance
(A)	Outer Diameter (O.D.)	When Outer Daimeter is 24" or less: ±1/16" (1.6mm) When Outer Daimeter is over 24": ±1/8" (3.2mm)
(D)	Inner Diameter (I.D.)	10 Inch and smaller: ±1/32" (0.8mm) 12 Inch thru 18": +1/8" (3.2mm) 20 Inch and larger: -1/16" (1.6mm)
(B)	contact face Diameter	1/16" raised face: ±1/32" (0.8mm) 1/4" RF, Tongue And Groove (male And female): ±1/64" (0.4mm)
(J)	hub at base Diameter	When hub base is 24 inch or smaller: ±1/16" (1.6mm) When hub base is over 24": ±1/8" (3.2mm)
(H)	Dia. of hub at point of welding	5 inch and smaller: +3/32" (2.4 millimeter), -1/32" (0.8 millimeter) 6 inch and larger: +5/32" (4.0 millimeter), -1/32 (0.8 millimeter)
(P)	Drilling	B.C.: ±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) maximum 3" and larger ±1/16" (1.6mm) maximum
(C)	Wall Thickness	18 Inch and smaller: ±1/8" (3.2mm), -0" 20 Inch and larger: ±3/16" (4.8mm), -0"
(K)	Length of hub	10 Inch and smaller: ±1/16" (1.6mm) 12 Inch and larger: ±1/8" (3.2mm)