Long Weld Neck Flanges Supplier

Flat Faced Long Weld Neck Flanges, ANSI B16.5 Long Weld Neck Flange, ASME B16.5 Long Weld Neck Flanges, Raised Face Long Weld Neck Flanges, ASME B16.47 Series A Long Weld Neck Flange, LWN Pipe Flange, LWN Flange Manufacturer In Mumbai, India.

Nextgen Steel & Alloys is a reputed name as supplier, manufacturer, and exporter of the most excellent quality Long Weld Neck flanges to our valued customers. We are stringently following set norms of national and international dimensions while manufacturing our flange products. This device is a type of flange that is unsuitable for pipes and is used in process plant. This type of a flange is also consists of a circular fitting with a protruding rim.

Long Weld Neck Flanges

Nickel Alloy Long Weld Neck Flange, Duplex Steel Long Weld Neck Flange, Class 600 Long Weld Neck Flanges Exporter, Class 150 LWN Flanges, Class 300 Long Weld Neck Flanges, Carbon Steel Long Weld Neck Flange, Alloy Steel LWN Flange, Stainless Steel Long Weld Neck Flanges, Long Weld Neck Flanges Supplier In India.

Our offered range of these flanges is highly appreciated in the industry owing of its easily-done fabrication and property of great corrosion resistance. Our Long weld neck flanges are available in different versions of the alloy. Different grades of flange products are  protected from the grain boundary carbide precipitation formations based on composition. We are manufacturing these Long weld neck flanges that are having outstanding toughness in different ranges of temperatures.

We, Nextgen Steel & Alloys, produce these high quality Long weld neck flanges for our valuable customers at several specifications. We provide these high-quality flanges products that have high tensile strength and stress rupture immunity to the material. These flanges are formed of a combination of various elements like chromium, nickel, and molybdenum elements of alloy with other elements that is sustainable for fabricated applications. These long weld neck flanges have good resistance to carbide precipitation and can be widely used for welding purposes. In addition, our Long weld neck flanges alloy exhibits outstanding toughness, excellent durability, and general corrosion resistance compared to numerous flanges grades. As a result, long weld neck flanges are being used as part of many industries like oil and gas, petrochemical, chemical, paper & pulp, energy, etc.

At Nextgen Steel & Alloys, our team of professional experts makes use of sophisticated technologies and modernized machinery to bring the most reliable quality Long weld neck flanges for customers’ use.

Standard Specifications for Long Weld Neck Flanges

Long Weld Neck Flanges Dimensions

ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Long Weld Neck Flanges Standard

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Long Weld Neck Flanges Size

1/2" (15 NB) to 48" (1200NB) DN10~DN5000

Long Weld Neck Flanges Class / Pressure

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Pressure Calculation in DIN

6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64

Long Weld Neck Flange Face Type

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Long Weld Neck Flanges Materials and Grade :

Stainless Steel Long Weld Neck Flanges :
ASTM A182, F304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L, SMO 254

Duplex & Super Duplex Steel Long Weld Neck Flanges :
ASTM / ASME A/SA 182 F44, F45, F51, F53, F55, F60, F61 / Duplex 2205 – UNS S31803, UNS S32205 / Super Duplex 2507 – UNS S32750, UNS S32760

Carbon Steel Long Weld Neck Flanges :
ASTM/ ASME A105, ASTM/ ASME A350 LF2, ASTM A694 & ASME SA694 F42 / F46 / F52 / F56 / F60 / F65 / F70

Alloy Steel Long Weld Neck Flanges :
ASTM / ASME A182 F5 / F9 / F11 / F12 / F22 / F91

Inconel Long Weld Neck Flanges : ASTM B564, Inconel 600 – UNS No. N06600, Inconel 601 – UNS No. N06601, Inconel 625 -UNS No. N06625, Inconel 715, Inconel 718 – UNS No. N07718, Incoloy 800 / 800H /800HT – (UNS No. N08800 / N08810 / N08811), Incoloy 825 – UNS No. N08825, Incoloy 925 – UNS No. N09925

Hastelloy Long Weld Neck Flanges :
ASTM B/SB564, Hastelloy B2 – UNS No. N10665, Hastelloy B3 – UNS No. N010675, Hastelloy C4 – UNS No. N06455, Hastelloy C22 – UNS No. N06022, Hastelloy C276 – UNS No. N10276, Hastelloy C2000 – UNS No. N06200, Hastelloy X – UNS No. N06002

Nickel Long Weld Neck Flanges : Nickel 200 – UNS No. N02200 , Nickel 201 – UNS No. N02201

Monel Long Weld Neck Flanges :
ASME SB 564, Monel 400 – UNS No. N04400, Monel K500 – UNS No. N05500

Titanium Long Weld Neck Flanges :
ASTM B381 / ASME SB381, Grade 2 – UNS No. R50400, Grade 5 – UNS No. R56400

Alloy 20 Long Weld Neck Flanges :
ASTM B462 / ASME SB462 – UNS No. N08020

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Dimensions of Long Weld Neck pipe flange

Class 150 Long Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD No of Bolts Bolt Size UNC RF Stud Length Hole Size
A B C D E F G
1/2 15 90 9.6 30 21.3 34.9 2 60.3 4 1/2 55 5/8
3/4 20 100 11.2 38 26.7 42.9 2 69.9 4 1/2 65 5/8
1 25 110 12.7 49 33.4 50.8 2 79.4 4 1/2 65 5/8
1 1/4 32 115 14.3 59 42.2 63.5 2 88.9 4 1/2 70 5/8
1 1/2 40 125 15.9 65 48.3 73 2 98.4 4 1/2 70 5/8
2 50 150 17.5 78 60.3 92.1 2 120.7 4 5/8 85 3/4
2 1/2 65 180 20.7 90 73 104.8 2 139.7 4 5/8 90 3/4
3 80 190 22.3 108 88.9 127 2 152.4 4 5/8 90 3/4
3 1/2 90 215 22.3 122 101.6 139.7 2 177.8 8 5/8 90 3/4
4 100 230 22.3 135 114.3 157.2 2 190.5 8 5/8 90 3/4
5 125 255 22.3 164 141.3 185.7 2 215.9 8 3/4 95 7/8
6 150 280 23.9 192 168.3 215.9 2 241.3 8 3/4 100 7/8
8 200 345 27 246 219.1 269.9 2 298.5 8 3/4 110 7/8
10 250 405 28.6 305 273 323.8 2 362 12 7/8 115 1
12 300 485 30.2 365 323.8 381 2 431.8 12 7/8 120 1
14 350 535 33.4 400 355.6 412.8 2 476.3 12 1 135 1 1/8
16 400 595 35 457 406.4 469.9 2 539.8 16 1 135 1 1/8
18 450 635 38.1 505 457.2 533.4 2 577.9 16 1 1/8 145 1 1/4
20 500 700 41.3 559 508 584.2 2 635 20 1 1/8 160 1 1/4
24 600 815 46.1 663 610 692.2 2 749.3 20 1 1/4 170 1 3/8

Class 300 Long Weld Neck Flange Dimensions

Size in Inch Size in mm Outer Dia. Flange Thick. Hub OD Weld Neck OD RF Dia. RF Height PCD No of Bolts Bolt Size UNC RF Stud Length Hole Size
A B C D E F G
1/2 15 95 12.7 38 21.3 34.9 2 66.7 4 1/2 65 5/8
3/4 20 115 14.3 48 26.7 42.9 2 82.6 4 5/8 75 3/4
1 25 125 15.9 54 33.4 50.8 2 88.9 4 5/8 75 3/4
1 1/4 32 135 17.5 64 42.2 63.5 2 98.4 4 5/8 85 3/4
1 1/2 40 155 19.1 70 48.3 73 2 114.3 4 3/4 90 7/8
2 50 165 20.7 84 60.3 92.1 2 127 8 5/8 90 3/4
2 1/2 65 190 23.9 100 73 104.8 2 149.2 8 3/4 100 7/8
3 80 210 27 117 88.9 127 2 168.3 8 3/4 110 7/8
3 1/2 90 230 28.6 133 101.6 139.7 2 184.2 8 3/4 110 7/8
4 100 255 30.2 146 114.3 157.2 2 200 8 3/4 115 7/8
5 125 280 33.4 178 141.3 185.7 2 235 8 3/4 120 7/8
6 150 320 35 206 168.3 215.9 2 269.9 12 3/4 120 7/8
8 200 380 39.7 260 219.1 269.9 2 330.2 12 7/8 140 1
10 250 445 46.1 321 273 323.8 2 387.4 16 1 160 1 1/8
12 300 520 49.3 375 323.8 381 2 450.8 16 1 1/8 170 1 1/4
14 350 585 52.4 425 355.6 412.8 2 514.4 20 1 1/8 180 1 1/4
16 400 650 55.6 483 406.4 469.9 2 571.5 20 1 1/4 190 1 3/8
18 450 710 58.8 533 457 533.4 2 628.6 24 1 1/4 195 1 3/8
20 500 775 62 587 508 584.2 2 685.8 24 1 1/4 205 1 3/8
24 600 915 68.3 702 610 692.2 2 812.8 24 1 1/2 230 1 5/8

Weight Chart of ASME B16.5 Long Weld Neck Flanges

NPS
(Inches)		 DN
(mm)		 FLANGE OD
A MM		 FLANGE THICKNESS D
MM		 SLIP ON FLANGE WEIGHT (KGS) WELD NECK FLANGE WEIGHT (KGS) BLIND FLANGE WEIGHT (KGS)
1/ 2 15 88.9 11.2 0.4 0.5 0.4
3/ 4 20 98.6 12.7 0.6 0.7 0.6
1 25 108 14.2 0.8 1 0.9
1 1/ 4 32 117.3 15.7 1 1.3 1.2
1 1/ 2 40 127 17.5 1.3 1.7 1.5
2 50 152.4 19.1 2.1 2.6 2.4
2 1/ 2 65 177.8 22.4 3.3 4.1 3.9
3 80 190.5 23.9 3.9 4.9 4.9
3 1/ 2 90 215.9 23.9 4.8 6.1 6.2
4 100 228.6 23.9 5.3 6.8 7.0
5 125 254 23.9 6.1 8.6 8.6
6 150 279.4 25.4 7.5 10.6 11.3
8 200 342.9 28.4 12.1 17.6 19.6
10 250 406.4 30.2 16.5 24 28.6
12 300 482.6 31.8 26.2 36.5 43.2
14 350 533.4 35.1 34.6 48.4 58.1
16 400 596.9 36.6 44.8 60.6 76.1
18 450 635 39.6 48.9 68.3 93.7
20 500 698.5 42.9 61.9 84.5 122.0
24 600 812.8 47.8 86.9 115 185.0

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Application of Long Weld Neck Flanges

Long Weld Neck Flanges in Oil & Gas Exploration
Oil & Gas Exploration 84%
Long Weld Neck Flanges in Shipbuilding
Shipbuilding 60%
Long Weld Neck Flanges in Petrochemical
Petrochemical 84%
Long Weld Neck Flanges in Nuclear Power Plants
Nuclear Power Plants 71%
Long Weld Neck Flanges in Food & Dairy Industries
Food & Dairy Plants 73%
Long Weld Neck Flanges in Chemical Industries
Chemical Industries 81%
Long Weld Neck Flanges in Pharmaceutical Industries
Pharmaceutical 57%

We Export Long Weld Neck Flanges Across the Globe

MIDDLE EAST : Saudi Arabia, Iran, Ira, Qatar, Bahrain, Oman, Kuwait, Turkey, Yemen, Syria, Jordan, Cyprus

AFRICA : Nigeria, Algeria, Angola, South Africa, Libya, Egypt, Sudan, Equatorial Guinea, the Republic Of Congo, Gabon

NORTH AMERICA : US, Canada, Mexico, Panama, Costa Rica, Puerto Rica, Trinidad And Tobago, Jamaica, Bahamas, Denmark

EUROPE : Russia, Norway, Germany, France, Italy, UK, Spain, Ukraine, Netherlands, Belgium, Greece, Czech Republic, Portugal, Hungary Albania, Austria, Switzerland, Slovakia Finland, Ireland Croatia, Slovenia, Malta

ASIA : Singapore, Malaysia, Indonesia, Thailand, Vietnam, South Korea, Japan, Sri Lanka, Maldives, Bangladesh, Myanmar, Taiwan, Cambodia

SOUTH AMERICA : Argentina, Bolivia, Brazil, Chile, Venezuela, Colombia, Ecuador, Guyana, Paraguay, Uruguay

We Supply Long Weld Neck Flanges All over India

Andhra Pradesh : Visakhapatnam, Vijayawada

Bihar : Patna

Chhattisgarh : Raipur

Delhi : New Delhi

Gujarat : Ahmedabad, Surat, Vadodara, Rajkot

Haryana : Faridabad

Jammu and Kashmir : Srinagar

Jharkhand : Ranchi, Dhanbad

Karnataka : Bangalore

Madhya Pradesh : Indore, Bhopal, Gwalior, Jabalpur

Maharashtra : Mumbai, Pune, Nagpur, Thane, Nashik, Kalyan-Dombivli, Vasai-Virar, Aurangabad, Navi Mumbai

Punjab : Ludhiana, Amritsar

Rajasthan : Jaipur, Jodhpur, Kota

Tamil Nadu : Chennai, Coimbatore, Salem, Madurai

Telangana : Hyderabad

Uttar Pradesh : Lucknow, Kanpur, Ghaziabad, Agra, Meerut, Varanasi, Allahabad

West Bengal : Kolkata, Howrah

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