Stainless Steel Weld Neck Flange manufacturer

Carbon Steel WNRF Flange and ASTM A105 WNFF Flange manufacturer in India

Table Of Content:

Weld Neck Flange Specification

Specification	Stainless Steel Weld Neck Flange
Weld Neck Flange Uses	Stainless Steel Weld Neck Flange Mainly Used High And Medium Pressure Pipes Connecting.
EN Standard	6Bar/ 10Bar/ 16Bar/ 25Bar/ 40Bar
DIN Standard	PN6/ PN10/ PN16/ PN25/ PN40/ PN64
JIS Standard	5K/ 10K/ 16K 20K/ 30K/ 40K/ 63K
Size Chart	1/2 Inch to 36 Inch, (Customized Up to 48")
Thickness	Sch 10S To SCH 120
Other Standard	B16.47 Series A & B/ B16.48, BS4504/ GOST
UNI Standard	6 Bar/ 10 Bar/ 16 Bar/ 25 Bar/ 40 Bar
Supporting Material	Gasket/ Ring Joint/ Flange Bolts
ASME B16.5 Weld Neck Flange Face Types	Raised Face Weld Neck Flanges Reducing Weld Neck Flanges Flat Face Weld Neck Flanges Weld Neck Orifice Flanges Rtj Weld Neck Flanges
Dimensions	ASME B16.47 Series A And B ASME B16.5 EN 1092-1 ASA API-605 AWWA C207 MSS SP44 EN 1092-2
Test Certificates	EN 10204/3.1B Raw Materials Certificate 100% Radiography Test Report Third Party Inspection Report, etc
Production Technique	Forged/ Heat treated and machined
Manufacturer of	Forged/ Threaded/ Screwed / Plate
Manufacturer Pressure Class	Class 150 (lb) up to 24" Class 300 (lb) up to 20" Class 600 (lb) up to 20" Class 900 (lb) up to 16" Class 1500 (lb) up to 10" Class 2500 (lb) up to 8"
Flange Test	Hydrostatic testing machine/ UI trasonic flaw detector/ X-ray detector/ Direct-reading Spectrograph/ Magnetic particle detector
Flange Equipment	Pushing Machine/ electric bevelling machine/ Press machine/ Bending machine/ Sand-blasting machine etc
Coating	Anti-rust Paint/ Zinc Plated/ Oil Black Paint/ Yellow Transparent/ Cold and Hot Dip Galvanized
Application	Bitumen upgraders Heavy oil refineries. Nuclear power (mostly seamless). Petrochemicals and acids.

Price stability can be seen in Weld Neck Flange manufacturer in India
Stainless Steel Weld Neck Flange have high corrosion resistance, particularly to stress corrosion cracking
Very little or no maintenance material
Carbon Steel Weld Neck Flange are suitable for harsh conditions.
Buy from Long Weld Neck Flange manufacturer in India for factory price
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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

Weld Neck Flange Material Grade

Brass Weld Neck Flange	3602 / 2604 / H59 / H62 / etc.
Inconel Weld Neck Flange	ASTM B564 / ASME SB564, Inconel 600/ 601/ 625/ 718/ 783/ 690/ x750 Weld Neck Flange
Carbon Steel Weld Neck Flange	ASTM/ASME A/SA105 A/SA105N & A/SA216-WCB, DIN 1.0402, DIN 1.0460, DIN 1.0619, Die Steel, ASTM A105 / ASME SA105, A105N, ASTM A350 LF2 / ASME SA350, High Yield CS ASTM A694 / A694 (F52 F56 F60 F65 F70 F80)
Stainless Steel Weld Neck Flange	ASTM/ASME A/SA182 F304, F304L, F316, F316L, ASTM/ASME A/SA351 CF8/ CF3/ CF8M/ CF3M/ DIN 1.4301/ DIN 1.4306/ DIN 1.4401/ DIN 1.4404/ DIN 1.4308/ DIN 1.4408/ DIN 1.4306/ DIN 1.4409
Alloy Steel Weld Neck Flange	ASTM A182 / ASME SA182 F5/ F9/ F11/ F12/ F22/ F91
Titanium Weld Neck Flange	ASTM B381 / ASME SB381, Titanium Gr. 1, Titanium Gr. 2/ Titanium Gr. 4/ Titanium Gr. 5/ Titanium Gr. 7 ASTM R50250/GR.1 \| R50400/GR.2 \| R50550/GR.3 \| R50700/GR.4 \| GR.6 \|R52400/GR.7 \| R53400/GR.12 \| R56320/GR.9 \|R56400/GR.5
Hastelloy Weld Neck Flange	ASTM B564 / ASME SB564, Hastelloy C276 (UNS N10276)/ C22 (UNS N06022)/ C4/ C2000/ B2/ B3/ X Flanges
Monel Weld Neck Flange	ASTM B564 / ASME SB564, Monel 400 (UNS No. N04400)/ Monel 500 (UNS No. N05500)
Copper Weld Neck Flange	T1, T2, C10100/ C10200/ C10300/ C10400/ C10500/ C10700/ C10800/ C10910/C10920/ TP1/ TP2/ C10930/ C11000/ C11300/ C11400/ C11500/ C11600/ C12000/C12200/ C12300/ TU1/ TU2/ C12500/ C14200/ C14420/ C14500/ C14510/ C14520/ C14530/ C17200/ C19200/ C21000/ C23000/ C26000/ C27000/ C27400/ C28000/ C33000/ C33200/ C37000/ C44300/ C44400/ C44500/ C60800/ C63020/ C68700/ C70400/ C70600/ C70620/ C71000/ C71500/ C71520/ C71640 etc
Copper Nickel Weld Neck Flange	ASTM / ASME SB 61 / 62 / 151 / 152/ Copper Nickel 90/10 (C70600 )/ Cupro Nickel 70/30 (C71500)/ UNS C71640
Alloy 20 Weld Neck Flange	ASTM B462 / ASME SB462/ Carpenter® 20 Alloy/ Alloy 20Cb-3
Aluminium Weld Neck Flange	5052 /6061/ 6063 / 2017 / 7075 / etc.
Nickel Weld Neck Flange	ASTM B564 / ASME SB564, Nickel 200/ Nickel 201/ Nickel 205/ Nickel 205LC
Duplex Weld Neck Flange	S31803 / S32205 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Super Duplex Weld Neck Flange	S32750 / S32760 A182 Gr F51 / F52 / F53 / F54 / F55 / F57 / F59 / F60 / F61
Incoloy Weld Neck Flange	ASTM B564 / ASME SB564, Incoloy 800/ 800H/ 800HT (UNS N08800)/ 825 (UNS N08825)/ 925 Flanges
254 Smo Weld Neck Flange	ASTM A182 / ASME SA182, SMO 254/6Mo/ UNS S31254/ DIN 1.4547
Nimonic Weld Neck Flange	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

Long Weld Neck Flange Standard Dimensions

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

Our Clients

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.)	10 Schedule	20 Schedule	30 Schedule	STD Wall	40 Schedule	60 Schedule	EXT Hvy	80 Schedule	100 Schedule	120 Schedule	140 Schedule	160 Schedule	XX Hvy
½	0.84	0.083	...	...	0.109	0.109	...	0.147	0.147	...	...	...	0.188	0.294
¾	1.05	0.083	...	...	0.113	0.113	...	0.154	0.154	...	...	...	0.219	0.308
1	1.315	0.109	...	...	0.133	0.133	...	0.179	0.179	...	...	...	0.25	0.358
1 ¼	1.66	0.109	...	...	0.14	0.14	...	0.191	0.191	...	...	...	0.25	0.382
1 ½	1.9	0.109	...	...	0.145	0.145	...	0.2	0.2	...	...	...	0.281	0.4
2	2.375	0.109	...	...	0.154	0.154	...	0.218	0.218	...	...	...	0.344	0.436
2 ½	2.875	0.12	...	...	0.203	0.203	...	0.276	0.276	...	...	...	0.375	0.552
3	3.5	0.12	-	-	0.216	0.216	-	0.3	0.3	-	-	-	0.438	0.6
3 ½	4	0.12	-	-	0.226	0.226	-	0.318	0.318	-	-	-	-	0.636
4	4.5	0.12	-	-	0.237	0.237	-	0.337	0.337	-	0.438	-	0.531	0.674
5	5.563	0.134	-	-	0.258	0.258	-	0.375	0.375	-	0.5	-	0.625	0.75
6	6.625	0.134	-	-	0.28	0.28	-	0.432	0.432	-	0.562	-	0.719	0.864
8	8.625	0.148	0.25	0.277	0.322	0.322	0.406	0.5	0.5	0.594	0.719	0.812	0.906	0.875
10	10.75	0.165	0.25	0.307	0.365	0.365	0.5	0.5	0.594	0.719	0.844	1	1.125	1
12	12.75	0.18	0.25	0.33	0.375	0.406	0.562	0.5	0.688	0.844	1	1.125	1.312	1
14	14	0.25	0.312	0.375	0.375	0.438	0.594	0.5	0.75	0.938	1.094	1.25	1.406	-
16	16	0.25	0.312	0.375	0.375	0.5	0.656	0.5	0.844	1.031	1.219	1.438	1.594	-
18	18	0.25	0.312	0.438	0.375	0.562	0.75	0.5	0.938	1.156	1.375	1.562	1.781	-
20	20	0.25	0.375	0.5	0.375	0.594	0.812	0.5	1.031	1.281	1.5	1.75	1.969	-
22	22	0.25	-	-	0.375	-	-	0.5	-	-	-	-	-	-
24	24	0.25	0.375	0.562	0.375	0.688	0.969	0.5	1.219	1.531	1.812	2.062	2.344	-
26	26	-	-	-	0.375	-	-	0.5	-	-	-	-	-	-
30	30	0.312	0.5	0.625	0.375	-	-	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)	Nunber of Bolt Hole (B.H.)	Diamete of Bolt Holes	Bolt C.D. P	Weight In Kilogram
1/2	3 1/2	1 3/8	7/16	0.50	1 1/4	9	4	5/8	2 3/8	3
3/4	3 7/8	1 11/16	1/2	0.75	1 5/8	9	4	5/8	2 3/4	5
1	4 1/4	2	9/16	1.00	2	9	4	5/8	3 1/8	8
1 1/4	4 5/8	2 1/2	5/8	1.25	2 3/8	9	4	5/8	3 1/2	10
1 1/2	5	2 7/8	11/16	1.50	2 5/8	9	4	5/8	3 7/8	12
2	6	3 5/8	3/4	2.00	3 1/4	9	4	3/4	4 3/4	16
2 1/2	7	4 1/8	7/8	2.50	3 3/4	9	4	3/4	5 1/2	21
3	7 1/2	5	15/16	3.00	4 1/4	9	4	3/4	6	24
3 1/2	8 1/2	5 1/2	15/16	3.60	4 7/8	9	8	3/4	7	31
4	9	6 3/16	15/16	4.00	5 1/2	12	8	3/4	7 1/2	47
5	10	7 5/16	15/16	5.00	6 1/2	12	8	7/8	8 1/2	57
6	11	8 1/2	1	6.00	7 3/4	12	8	7/8	9 1/2	77
8	13 1/2	10 5/8	1 1/8	8.00	9 3/4	12	8	7/8	11 3/4	103
10	16	12 3/4	1 3/16	10.00	12	12	12	1	14 1/4	150
12	19	15	1 1/4	12.00	14 3/8	12	12	1	17	215
14	21	16 1/4	1 3/8	14.00	16	12	12	1 1/8	18 3/4	221
16	23 1/2	18 1/2	1 7/16	16.00	18	12	16	1 1/8	21 1/4	254
18	25	21	1 9/16	18.00	20	12	16	1 1/4	22 3/4	276

Global Client Reference list & delivery schedule of Stainless Steel Weld Neck Flange

Location	Days	Clients
India	7	Indian oil corporation, India L&T India Essar India BHEL India NTPC India WIPRO India
Malaysia	15	Saag Oil & Gas Sdn Bhd (Malaysia), Block C1, Petaling Jaya, Malaysia, 19-5, 47301 Petaling Jaya, Selangor, Malaysia Malaysian Oil & Gas Services Council, Malaysia, Persiaran Petronas, Kuala Lumpur City Centre, 50088 Kuala Lumpur, Malaysia Synergy Oil & Gas Engineering Sdn Bhd, Malaysia, B-07-02, Skypark @, Jalan USJ 25/1, One City, 47600 Subang Jaya, Selangor, Malaysia Hablem Oil & Gas (M) Sdn Bhd, Malaysia, Lot K-7162 (Ground Floor), Bandar Seri Kerteh, 24300 Kerteh, Terengganu, Malaysia
United Arab Emirates (UAE)	15	Hexa Oil & Gas, UAE, Abu Dhabi - United Arab Emirates (UAE) Al Masaood Oil & Gas, UAE, Abu Dhabi - United Arab Emirates (UAE)
Dubai	15	SPEC Oil & Gas FZCO- Dubai, Sheikh Mohammad Bin Zayed Rd - Dubai - United Arab Emirates (UAE) Dragon Oil LLC -Dubai, Umm Al Hurair 2, Building 16, Executive Office Building- Dubai, UAE Lazer Clean Middle East L.L.C, Dubai - United Arab Emirates (UAE) Esterpol DIP, Dubai Investments Park 2 - Dubai - United Arab Emirates (UAE)
Indonesia	20	Pacific Oil & Gas Indonesia. PT- Indonesia, RT.14/RW.20, Kebon Melati, Central Jakarta City, Jakarta 10230, Indonesia GE Oil & Gas- Indonesia, Batu Ampar, Batam City, Riau Islands 29444, Indonesia Medco E&P Indonesia TUGU- Indonesia, Jawa Barat 16750, Indonesia Mubadala Petroleum - Indonesia, DKI Jakarta, Daerah Khusus Ibukota Jakarta 12310, Indonesia
Singapore	15	Pacific Oil & Gas -Singapore, 1 Raffles Pl, Singapore 048624 Repsol Oil & Gas SEA Pte. Ltd. -Singapore, tower 2 Marina Bay Financial Centre, Singapore 018983 BP Singapore Pte Ltd -Singapore, 7 Straits View, #26-01 Marina One East Tower, Singapore 018936 Cosmo Oil International Pte Ltd -Singapore, 6 Battery Rd, Singapore 049909
UK	40	Solutia UK Ltd, Corporation Rd, Newport NP19 4XF, United Kingdom (UK) Stepan UK Ltd, Bridge House, Bridge Street, Stalybridge SK15 1PH, United Kingdom (UK) Univar UK Ltd, Block K/Leslie Caerphilly CF83 1BQ, United Kingdom (UK)
Australia	40	Scott Chemicals Australia Pty Ltd, 21/296 Bay Rd, Cheltenham VIC 3192, Australia Wildcat Chemicals Australia, 15 Magnesium St, Narangba QLD 4504, Australia Knight Equipment Australia PTY Ltd., Unit 3/1B Kleins Rd, Northmead NSW 2152, Australia
Italy	30	Ecolab Production Italy, Via A. Grandi, 9, 20089 Rozzano MI, Italy Sabic Italia Spa, Via S. Clemente, 1, 20122 Milano MI, Italy TEVA Pharmaceutical Industries (Italy), Via Terrazzano, 77, 20017 Rho MI, Italy
Germany	32	Evonik Industries AG, Rößlerstraße 1, 64293 Darmstadt, Germany DEA German Petroleum AG, Überseering 40, 22297 Hamburg, Germany Oiltanking GmbH Germany, Saarstraße 14, 63450 Hanau, Germany
Kuwait	12	Kuwait National Petroleum Company, Hamad Al Zuwayer St, Ahmadi, Kuwait Kuwait Oil Tanker Company, Kuwait Kuwait Drilling Company, Kuwait City, Kuwait
Oman	12	Oman Oil Service Station, Seeb, Oman CC Energy Development S.A.L Oman, 3026 As Saruj St, Muscat, Oman
Qatar	15	SPIE Oil & Gas Services Doha LLC (Qatar), Cat Building, Al Saad - 4th Floor، Doha, Qatar Qatar Petroleum Oil Refinery, Mesaieed, Qatar

ASME B16.5 Weld Neck Flange Packaging

Stainless Steel Weld Neck Flange Dimensions

Class 150 Weld Neck Flange Dimensions

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	WNRF Bore Daimeter	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(F)	(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

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

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	WNRF Bore Daimeter	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(F)	(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	WNRF Bore Daimeter	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(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

Class 1500 Weld Neck Flange Dimensions

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	WNRF Bore Daimeter	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(F)	(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

Class 2500 Weld Neck Flange Dimensions

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	WNRF Bore Daimeter	Raised Face Diameter	Height Of Raised Face	PCD	Face Of WNRF
		(A)	(B)	(C)	(D)	(E)	(F)	(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

Manufacturer of Raised/ Flat Face Carbon Steel Long Weld Neck Flange in Class 150 to 2500 pressure rating, view Stainless Steel LWNRF Price list and dimensions

Weld Neck Flange Pressure And Temperature Ratings

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

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

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

Burr free ANSI B16.5 Duplex Steel Weld Neck Pipe Flanges manufacturer in Mumbai, call Vishal Steel for free sample!

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

(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	(O.D.) Outer Daimeter Gasket
(Normal Size Of Steel Pipes) In Inch	(I.D.) Inner Daimeter Gasket	Class 150#/ LB	Class 300#/ LB	Class 400#/ LB	Class 600#/ LB	Class 900#/ LB
1/2	0.84	1.875	2.125	2.125	2.125	2.50
3/4	1.06	2.25	2.625	2.625	2.625	2.75
1	1.31	2.625	2.875	2.875	2.875	3.125
1 1/4	1.66	3	3.25	3.25	3.25	3.50
1 1/2	1.91	3.375	3.75	3.75	3.75	3.875
2	2.38	4.125	4.375	4.375	4.375	5.625
2 1/2	2.88	4.875	5.125	5.125	5.125	6.50
3	3.50	5.375	5.875	5.875	5.875	6.625
4	4.50	6.875	7.125	7.00	7.625	8.125
5	5.56	7.75	8.50	8.375	9.50	9.75
6	6.62	8.75	9.875	9.75	10.50	11.375
8	8.62	11	12.125	12.00	12.625	14.125
10	10.75	13.375	14.25	14.125	15.75	17.125
12	12.75	16.125	16.625	16.50	18.00	19.625

Stainless Steel Weld Neck Flange Price List

Type Of Flange	Size In Inch	SCH	Class	Grade	Price In INR (India) Per Piece
Weld Neck Flange	3/4	40	150	ASTM A182 F316	145.00
-	1	40	150	-	234.00
-	2	40	150	-	343.00
-	3	40	150	-	678.00
-	4	80	300	-	1067.00
-	6	80	300	-	1378.00
-	8	80	300	-	1767.00
-	10	80	300	-	2165.00
Weld Neck Flange	12	80	300	ASTM A182 F316	2563.00

Carbon Steel Weld Neck Flange Price List

Type Of Flange	Size In Inch	SCH	Class	Grade	Price In INR (India) Per Piece
Weld Neck Flange	3/4	40	150	ASTM A105	134.00
-	1	40	150	-	167.00
-	2	40	150	-	267.00
-	3	40	150	-	653.00
-	4	40	150	-	874.00
-	6	40	150	-	987.00
-	8	40	150	-	1263.00
Weld Neck Flange	10	40	150	ASTM A105	1876.00

Weld Neck Flange Facing Types

Type A: Flat Face (FF)
Type B: Raised Face (RF)
Type C: Tongue Face (TF)
Type D: Grooved Face (GF)
1Type E: Spigo
Type F: Recess
Type G: Ring Recess
Type H: O-Ring Groove

Features Of Weld Neck Flange

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 Chart

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 Symbol

ASME B16.5 Weld Neck Flange Installation

Carbon Steel Weld Neck Flange Surface Finish

Normal Pipe Size	(A)	(B)
1/2	3.0	1.5
3/4	3.0	1.5
1	3.0	1.5
1-1/4	3.0	1.5
1-1/2	3.0	1.5
2	3.0	1.5
2-1/2	3.0	1.5
3	4.5	1.5
3-1/2	6.0	3.0
4	6.0	3.0
5	6.0	3.0
6	6.0	3.0
8	8.0	4.5
10	8.0	4.5
12	8.0	4.5
14	8.0	4.5
16	10.0	4.5
18	12.0	6.0
20	12.0	6.0
22	12.0	6.0
24	12.0	6.0

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

Weld Neck Flange Bolt Dimensions

Buy Alloy Steel Weld Neck Orifice Flange and MS Reducing Weld Neck Flange at genuine price, ready sizes of A182 Gr F11 long welding neck flange in India

We Supplied A Comprehensive Range Of Stainless Steel Weld Neck Flange To The Following Countries:

Carbon Steel Weld Neck Flange

Netherlands, USA, United States, Canada.

ASME B16.5 Weld Neck Flange

Singapore, Vietnam, Mexico, Denmark.

WNRF Flange

Thailand, Finland, Russia, Belgium.

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)

Weld Neck Flange Manufacturing Process

Raw Material

Raw Materia
Materia Dimension And Visual
Materia Quantity

Inspection

Chemical And Mechanical Analysis
Analysis Of Preservation Certificate

Cutting

Cut Surface
Marking
Weight Measuring

Forging Flange

Grade Of Material
Control Flange Temperature

Heat Treatment

Flange Solution Treatment
Flanges Mechanical Test
Normalizing

Forging Rolling Of Flange

Check Dimension
Check Marking
Check Weight

Final Inspection Of Pipe Flange

Test Of Visual
Test Of Nondestructive

Rust Prevention

View Preserve
Marking
Heat Number

Packaging

Specification Of Packing
Inspection Of Packing
Delivery Time And Day

Long Weld Neck Flange Weight Calculator

WN Flange Vacuum Range

Full Barrel Long Weld Neck Flange Dimensions

(Normal Size Of Steel Pipe)	Outer Diameter Of (A)	RF Diameter Of (B)	WT Of (C)	Bore Dia. (D)	Hub Dia. at Base (J)	Length Of Hub (K)	Nuts And Bolts Stop Dia. NS	Nuts And Bolts Relief Dia. NR	Nuts And Bolts Relief Length Of NL	Number of Bolts Holes	Bolts Holes Diameter	B.C. ( Bolt Circle) Diameters P	Weight in KG (Kilogram)
1/2	3 1/2	1 3/8	7/16	0.50	1 1/4	9	1 1/2	1 1/4	3/4	4	5/8	2 3/8	21
3/4	3 7/8	1 11/16	1/2	0.75	1 5/8	9	1 7/8	1 5/8	3/4	4	5/8	2 3/4	27
1	4 1/4	2	9/16	1.00	2	9	2 1/ 4	2	3/4	4	5/8	3 1/8	30
1 1/4	4 5/8	2 1/2	5/8	1.25	2 3/8	9	2 5/8	2 3/8	3/4	4	5/8	3 1/2	36
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	41
2	6	3 5/8	3/4	2.00	3 1/4	9	3 11/ 16	3 1/16	7/8	4	3/4	4 3/4	57
2 1/2	7	4 1/8	7/8	2.50	3 3/4	9	4 7/16	3 3/4	7/8	4	3/4	5 1/2	79
3	7 1/2	5	15/16	3.00	4 1/4	9	4 15/15	4 1/4	7/8	4	3/4	6	86
3 1/2	8 1/2	5 1/2	15/16	3.50	4 7/8	9	5 15/16	4 7/8	7/8	8	3/4	7	110
4	9	6 3/16	15/16	4.00	5 1/2	12	6 7/16	5 1/2	7/8	8	3/4	7 1/2	164
5	10	7 5/16	15/16	5.00	6 1/2	12	7 1/2	6 1/2	1	8	7/8	8 1/2	189
6	11	8 1/2	1	6.00	7 3/4	12	8 1/4	7 3/4	1	8	7/8	9 1/2	216
8	13 1/2	10 5/8	1 1/8	8.00	9 3/4	12	10 1/2	9 3/4	1	8	7/8	11 3/4	292
10	16	12 3/4	1 3/16	10.00	12	12	12 7/8	12	1 1/8	12	1	14 1/4	382
12	19	15	1 1/4	12.00	14 3/8	12	15 9/16	14 3/8	1 1/2	12	1	17	535
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	585
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	714
18	25	21	1 9/16	18.00	20	12	20 15/16	20	1 3/8	16	1 1/4	22 3/4	711
20	27 1/2	23	1 11/16	20.00	22	12	23 3/16	22	1 3/8	20	1 1/4	25	840