Long weld neck flange

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Long Weld Neck Flange Overview

Manufacturing Method	Forged, Plate and Cast
Standard	ASME B16.5 (Forged Long Weld Neck Flange)
Sizes	NPS 1/2″ to NPS 24″ (150#, 300#, 400#, 600#, 900#, 1500#), NPS 1/2 – NPS 12″ (2500# BL Flange)
Pressure Rating Class	ASME B16.5 Class 150, 300, 400, 600, 900, 1500, 2500
Steel and Alloys	Stainless Steel, Carbon Steel, Monel, Copper, Copper Nickel, Nickel Alloy, Inconel, 16Mo3, Hastelloy, Duplex and Super Duplex, Titanium Long Weld Neck Flanges

Table of Content

Long Weld Neck Flange Specification
Types of Long Weld Neck Flange
Long Weld Neck Flange Flange Material
LWNRF Weight Chart
Manufacturing Standards of Long Weld Neck Flange
Carbon Steel Long WN Flange International Standards
Long Neck Flange Sealing Face Types
Check Dimensions of Other Flanges
Long Weld Neck Flange Number of Bolts And Size
LWNRF Flange Surface Finish
Raised Face Long Weld Neck Flange Height
Stainless Steel Long Weld Neck Flange Pressure Class
Alloy Steel Long Weld Neck Flange Temperature Range
What are the Uses and Application of Long Weld Neck Flange?
LWNRF Flange Pressure Rating
Tolerance Chart of Long Welding Neck Flange
Forging Process of LWNRF Flange
Do Long Weld Neck Flanges Have Schedule Bores?
How Long are Long Weld Neck Flanges? What Are Their Barrel Varieties?
Readily Available Stock Of Long Weld Neck Flange
Inconel Long Weld Neck Flange

Monel Long Weld Neck Flange
Hastelloy Long Weld Neck Flange
Inconel 625 Long Welding Neck Flange
Hastelloy C276 Long Weld Neck Flange
ASTM B564 UNS N06625 Long Neck Flange
Stainless Steel Long Weld Neck Flange
ASTM A182 Gr 304 Long Weld Neck Flange
SS 304L Raised Face Long Weld Neck Flange
316 Stainless Steel Flange Long Welding Neck
AISI 316L Long Neck Flange
Duplex Steel Long Weld Neck Flange
Super Duplex Long Weld Neck Flange
ASTM A182 F51 Long Weld Neck RTJ Flanges
ASTM A182 F60 Long Neck Flange
ASTM A182 F53 Raised Face Long Weld Neck Flange
ASTM A182 F55 Long Weld Neck Flange
Carbon Steel Long Weld Neck Flange
ASTM A105 Flange Long Welding Neck
A105N Normalized Long Neck Flange
ASTM A350 LF2 Long Weld Neck Flange
LTCS Long Weld Neck RTJ Flange
ASTM A694 F42 Long Weld Neck Flanges
ASTM A692 F52 Raised Face Long Weld Neck Flange

Stainless Steel Long Weld Neck Flange Suppliers in UAE

Long Weld Neck Flange Specification

Connection Types: Raised face (RF) Long Weld Neck Flange, flat face (FF) Long Weld Neck Flange, ring joint (RTJ) Long Weld Neck Flange

Applications: High pressure and temperature

German Standard: Long Weld Neck flange DIN 2633

EN 1092-1 Long Weld Neck Flange: Type C (Tongue), Type D (Groove) and Type E/F/G/H, Type A (FF), Type B (RF)

Long Weld Neck Flange Other Name: Integral Flange

SOUR Service Certification: NACE MR 01-75 / ISO 15156

Country of Origin: Long Weld Neck Flange make in UAE, India, Netherlands, Europe, USA, Japan and Korea

Stainless Steel Long Weld Neck Flanges as per ASTM A182/ SA 182

Carbon Steel Long Weld Neck Flanges as per ASTM A105, A350, A694, A181

Duplex Steel Long Weld Neck Flanges in UNS S31803, UNS S32205, UNS S32750, UNS S32760

Buy Directly from Long Weld Neck Flange suppliers in UAE

100% Tested ANSI B16.5 Long Weld Neck Flange with MTC EN 10204/3.1, ISO 10474

Choose Among The Verified Suppliers of Carbon Steel Long Weld Neck Flange in Dubai, Compare Price Lists And Quality

Types of Long Weld Neck Flange

Long Welding Neck Flanges

SS LWNRF Flange

Long Weld Neck RTJ Flange

Buy All Types of Alloy Steel Long Weld Neck RTJ Flange as per ASME B16.5, Check Manufacturing Methods, Advantages, And Disadvantages

Long Weld Neck Flange Flange Material

Duplex Steel Long Welding Neck Flange	Duplex 2205, UNS S31803 (DIN 1.4462), UNS S32205, Super Duplex 2507, UNS S32750 (DIN 1.4410), UNS S32760, ASTM A182 Grade F51, F52, F53, F54, F55, F57, F59, F60, F61, SMO 254, AL6xn, 6Mo, UNS S31254, DIN 1.4547
Nickel Alloy Long Weld Neck Flange	ASTM B564 / ASME SB 564M, Nickel 200, Alloy 201, Nickel 205LC, Nickel 205
Inconel Long Neck Flange	ASME SB 564 UNS N06600 (Alloy 600) W.Nr. 2.4816, UNS N06601 (Alloy 601) W.Nr. 2.4851, UNS N06617 (Alloy 617) W.Nr. 2.4663a, ASTM B564 UNS N06625 (Alloy 625) W.Nr. 2.4856, UNS N06626 (Alloy 625LCF) W.Nr. 2.4856, UNS N06686 (Alloy 686) W.Nr. 2.4606, UNS N06690 (Alloy 690) W.Nr. 2.4642, UNS N06693 (Alloy 693), UNS N09706 (Alloy 706), UNS N07718 (Alloy 718) W.Nr. 2.4668, UNS N07719 (Alloy 718SPF), UNS N07725 (Alloy 725), UNS N07740 (Alloy 740H), UNS N07750 (Alloy X-750) W.Nr. 2.4669, UNS N07751 (Alloy 751), UNS N07754 (Alloy MA754), UNS R30783 (Alloy 783)
Incoloy Long Weld Neck Flange	ASTM B564 UNS N08825, UNS N09925
Incoloy Alloy 20 Raised Face Long Weld Neck Flange	ASTM B462 UNS N08020
Hastelloy Long Weld Neck Flange	ASTM B564 UNS N10276 (Hastelloy C276), UNS N06022 (Hastelloy C22), UNS N06200 (C2000), UNS N06002 (X), UNS N10001 (B), UNS N10665 (B2), UNS N10675 (B3), UNS N06035 (G35), UNS N06985 (G3), UNS N06030 (G30), UNS N06455 (C4), UNS N07022 (C-22HS), UNS N10003 (N), UNS N06635 (S)
Monel Flange Long Welding Neck	ASTM B564 UNS N04400, UNS N05500
SS 904L Long Weld Neck Flange	UNS N08904
Stainless Steel Long Weld Neck Flange	ASTM A182 Gr 304, 304L, 316, 316L, 310, 310S, 317L, 316Ti, 321, 347, 347H, UNS S66286
Carbon Steel Long Neck Flange	ASTM A105, A105N, A350 LF2 (LTCS), LF3, AISI 4130, AISI 4140, AISI 4340, AISI 4145
Carbon Steel ASTM A694 Long Weld Neck Flange	A694 F42, F46, F52, F60, F65, F706
Alloy Steel Long Weld Neck RTJ Flange	ASTM A182 F5, F9, F11, F22, F91
Cupro Nickel Long Weld Neck Flanges	Copper Nickel 90/10 and Cuni 70/30
Titanium Raised Face Long Weld Neck Flange	Titanium Gr 2, Gr 5

Long Weld Neck Flange Material

Sales Agents in Following Locations

Muscat	Riyadh	Dubai	Ras Al Khaimah
Sharjah	Fujairah	Umm Al Quwain	Doha
Saudi Arabia	Al Jubail	Abu Dhabi	Ajman

Not Finding a Specific Size With Your Current Importers? Check the List Of Very Few But Verified Suppliers and Get The Perfect Duplex LWNRF flange at the Best Price

LWNRF Flange Weight Chart

NPS in Inch	Thickness	Weight in KG
1/2	7/16	3
3/4	1/2	5
1	9/16	8
1 1/4	5/8	10
1 1/2	11/16	12
2	3/4	16
2 1/2	7/8	21
3	15/16	24
3 1/2	15/16	31
4	15/16	47
5	15/16	57
6	1	77
8	1 1/8	103
10	1 3/16	150
12	1 1/4	215
14	1 3/8	221
16	1 7/16	254
18	1 9/16	276
20	1 11/16	324
22	–	–
24	1 7/8	439

Get Benefits of the Lowest Price When Buying From Verified ASTM A182 F304 Raised Face Long Weld Neck Flanges Manufacturers in the Middle East and India

Manufacturing Standards of Long Weld Neck Flange

LWNRF flange DIN standard	LWN flange UNI standard	Long WN flange BS standard	RFLWN flange JIS standard
DIN 28115 PN10 Long Neck Welding flanges	UNI 2280	BS 4504 (PN 2.5 to PN 40)	JIS B2220
DIN 28115 PN25 Long Neck Welding flange	UNI 2286	BS 10 (Tables D, E, F and H)	KS B1541
–	UNI 2283	–	KS B1522
–	–	–	JIS B2311
–	–	–	KS B1543
–	–	–	JIS B2312

Carbon Steel Long WN Flange International Standards

USA	Europe	Germany	Japan
API 605 ANSI B16.5 ANSI B16.48 ASA CL 125 (Light weight) MSS SP44 ASME B16.5 long weld neck flange ANSI B16.47 (API 605) ANSI B16.36 AWWA AWWA C207	PN 10 to PN400 BS EN 1759 ISO 7005	DIN	JIS JIS B2220
Australia & UK	Europe	Russia	Italy
BS 10	EN 1092-1 BS EN 1092-2 BS EN 1092-3	Ghost	UNI 2276 UNI 6091
South Korean and China	Malaysia	France	Canada
GB/T 9112 / 9119 (China) KS B1503 (South Korean)	MS 816 MS 253 MS 253 MS 816	NF E 29-200 NF E 29-203	CSA B16.5 ANSI B16.47 Series A & B

Warehouse Locations of Partner Suppliers

Middle East countries	Qatar, Lebanon, Bahrain, Saudi, Kuwait, UAE, Jordan, Iraq, Syria, Iran, Yemen
Africa	Nigeria, South Africa, Kenya, Morocco, Egypt, Tunisia, Algeria
MENA	Morocco, Libya, Algeria, Tunisia, Egypt, Israel, Palestine

Long Neck Flange Sealing Face Types

Type	Long weld neck flange Sealing Way
FF	Flat face
LWNRF	Raised face long weld neck flange
LJ	Lap Joint
RTJ	Ring Type Joint
M&F	Male & female
T&G	Tongue and Groove

Check Dimensions of Other Flanges

Long Weld Neck Flange Number of Bolts And Size

Number of Bolts
Size in Inch	Size in MM	150#	300#	400#	600#	900#	1500#	2500#
1/2	15	4	4	4	4	4	4	4
3/4	20	4	4	4	4	4	4	4
1	25	4	4	4	4	4	4	4
1 1/4	32	4	4	4	4	4	4	4
1 1/2	40	4	4	4	4	4	4	4
2	50	4	8	8	8	8	8	8
2 1/2	65	4	8	8	8	8	8	8
3	80	4	8	8	8	8	8	8
3 1/2	90	8	8	8	8	–	–	–
4	100	8	8	8	8	8	8	8
5	125	8	8	8	8	8	8	8
6	150	8	12	12	12	12	12	8
8	200	8	12	12	12	12	12	12
10	250	12	16	16	16	16	12	12
12	300	12	16	16	20	20	16	12
14	350	12	20	20	20	20	16	–
16	400	16	20	20	20	20	16	–
18	450	16	24	24	20	20	16	–
20	500	20	24	24	24	20	16	–
24	600	20	24	24	–	20	16	–

Check Out Your Nearby Locations For Fastest Deliveries

Country	Cities
Netherlands	The Hague
Belgium	Meeuwen-Gruitrode
Netherlands	Amsterdam
Belgium	Antwerp
Netherlands	Haarlem
Belgium	Brussels
Belgium	Seraing
Belgium	Ghent
Belgium	Leuven
Netherlands	Eindhoven
Belgium	Westerlo
Netherlands	Rotterdam

LWNRF Flange Surface Finish

Spiral serrated
Serrated finish
Stock finish
Smooth Finish

Raised Face Long Weld Neck Flange Height

Class	Height
#150	1/6″
#300	1/6″
#400	1/4″
#600	1/4″
#900	1/4″
#1500	1/4″
#2500	1/4″

Stainless Steel Long Weld Neck Flange Pressure Class

ASME B16.5 long weld neck flange	150 PSI 250 PSI 300 PSI 350 PSI 400 PSI 600 PSI 900 PSI 1500 PSI 2500 PSI
KS1503/ JIS B2220 long weld neck flange	5K 10K 16K 20K 30K
SANS/SABS 1123 long weld neck flange	Class 600/3 1000/3 1600/3 2500/3 4000/3

Alloy Steel Long Weld Neck Flange Temperature Range

Alloy	Grade	UNS	Forged long weld neck flange	Casting long weld neck flange	DIN	WNR	Temperature range
Moly steel long weld neck flange	C-1/2Mo	K12822	ASTM A182 Gr F1 cl2	ASTM A217-WC1	15M03	1.5415	Up to 470ºC* 875ºF
Alloy steel chrome moly long weld neck flange	1.1/4Cr-1/2Mo	K11572	ASTM A182 Gr F11 cl2	ASTM A217 WC6	13CRM044	1.7335	Up to 593ºC 1100ºF
	2.1/4Cr-1Mo	K21590	ASTM A182 Grade F22 cl3	ASTM A217 Gr WC9	10CRM0910	1.7380	Up to 593ºC 1100ºF
	5Cr-1/2Mo	K41545	ASTM A182 Grade F5/F5a	ASTM A217 Gr C5	12CRMO195	1.7362	High temp boiler/ refinery application
	9Cr-1Mo	K90941	A182 Gr F9	A217-C12	X 12 CrMo 9 1	1.7386	High temp erosive refinery application
	9Cr-1Mo-V		A182 Gr F91	A217-C12A	X 10 CrMoVNb 9 1	1.4903	High pressure boilers
Alloy steel long weld neck flange	AISI 4130 long weld neck flanges	G41300	ASTM A182	ASTM A217/M	–	1.7218	899 to 927°C 1650 to 1700°F

What are the Uses and Application of Long Weld Neck Flange?

Petrochemical
Oil and gas pipelines
Industrial process
Pressure-vessel
Power generation plants
Marine pipelines
Water treatment

LWNRF Flange Pressure Rating

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

Tolerance Chart of Long Welding Neck Flange

Flange	Length of hub		Thickness		Outside Diameter		Inside Diameter
Tolerance	10" and smaller: ±1/16"	12" and larger: ±1/8"	18" and smaller: ±1/8"	20" and larger: ±3/16 "	24 " or less: ±1/16"	24 : ±1/8 inch (3.2mm)	10" and smaller: ±1/32"	12", +1/8"	20" and larger: -1/16"

Forging Process of LWNRF Flange

Material Selection
Cutting
Heating
Forging
Flash Removal
Heat Treatment
Machining
Surface Treatment

Do Long Weld Neck Flanges Have Schedule Bores?

Due to its sizes long Weld Neck Flanges generally are not manufactured with schedule specific bores

How Long are Long Weld Neck Flanges? What Are Their Barrel Varieties?

Long Weld Neck Flange typically has a hub length of about 9 Inch, 12 Inch or 16 Inch , and its hub can come as a plain barrel, heavy barrel or tapered barrel type

Readily Available Stock Of Long Weld Neck Flanges

Inconel Long Weld Neck Flange

½” – 24”

Surface treatment : Polishing

Monel Long Weld Neck Flange

15 NB – 1200 NB

LWNRF : Raised face long weld neck flange

Hastelloy Long Weld Neck Flange

LWN : Long weld neck flange

Schedule 10 / 10S to SCH 160

Inconel 625 Long Welding Neck Flange

CNC machined long weld neck flange

Class : 150 LBs – 2500 LBs

Hastelloy C276 Long Weld Neck Flange

ISO 15156 , NACE MR0175

Pipe Lines Connections

ASTM B564 UNS N06625 Long Neck Flange

Finish : Smooth, Stock Finish

Face : Lap ioint (LJ) , Flat face (FF)

Stainless Steel Long Weld Neck Flange

Bolts Holes : 4 to 24

BS EN 1092-2, EN 1092-1

ASTM A182 Gr 304 Long Weld Neck Flange

Forged long weld neck flange

UNI 2276, UNI 6091

SS 304L Raised Face Long Weld Neck Flange

ASME B16.5 long weld neck flange

MS 816 , MS 253

316 Stainless Steel Flange Long Welding Neck

Schedule 10 / 10S to SCH 160

Test : Tensile test, PMI

AISI 316L Long Neck Flange

Facing Types : M&F, T&G

Certification : ISO 9001

Duplex Steel Long Weld Neck Flange

Pressure : 150#~2500#

Packing : Wooden Case

Super Duplex Long Weld Neck Flange

Bolt Hole Quantity : 12

Process : heating Treatment

ASTM A182 F51 Long Weld Neck RTJ Flanges

Bolt Hole Diameter : 25-28mm

Delivery time : 15-25days

ASTM A182 F60 Long Neck Flange

Standards : ANSIB16.47, ANSI B16.5

Outside diameter : 80mm-6000mm

ASTM A182 F53 Raised Face Long Weld Neck Flange

Seal face : RTJ, grooved

faster delivery time

ASTM A182 F55 Long Weld Neck Flange

Quality inspection : Third-party inspection

Dn200 8 Inch 150lb Rf Long Weld Neck Flange

Carbon Steel Long Weld Neck Flange

custom sizes

Wall thickness : SCH 5s-SCH XXS

ASTM A105 Flange Long Welding Neck

Process : forged

material: Carbon Steel

A105N Normalized Long Neck Flange

Delivery time : Within 7 Days

Packing : plywood case

ASTM A350 LF2 Long Weld Neck Flange

Coating : PTFE, Hot dip galvanized coating

ISO certificate

LTCS Long Weld Neck RTJ Flange

Conditions: Quenching and Tempering

Supporting Material : Gaskets

ASTM A694 F42 Long Weld Neck Flanges

High-pressure pipeline systems

Temperature : 750°F

ASTM A692 F52 Raised Face Long Weld Neck Flange

Bore Diameter : NPS ≤ 10

Production Technique For Flange : Machined, Forged

Storage Sites of Partner Suppliers

City	Region	Country
Dubai	Middle East	United Arab Emirates
Abu Dhabi	Middle East	United Arab Emirates
Dammam	Middle East	Saudi Arabia
Riyadh	Middle East	Saudi Arabia
Doha	Middle East	Qatar
Abuja	Africa	Nigeria
Kuwait City	Middle East	Kuwait
Jeddah	Middle East	Saudi Arabia
Cairo	MENA	Egypt
Casablanca	MENA	Morocco
Johannesburg	Africa	South Africa
Cape Town	Africa	South Africa
Lagos	Africa	Nigeria