Long Weld Neck Flanges
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1 Ton (MOQ)
Highly acclaimed Manufacturer & Supplier of Long Weld Neck Flanges, Carbon Steel Long Weld Neck Flanges, SS Long Weld Neck Flanges, Alloy Steel Long Weld Neck Flanges, Inconel Long Weld Neck Flanges, Monel Long Weld Neck Flanges, Hastelloy Long Weld Neck Flanges in IndiaWe are largest manufacturers of Long Weld Neck (lwn) Flanges & have huge stock of 304 Long Weld Neck Flanges, 316 Long Weld Neck Flanges, astm a105 Long Weld Neck Flanges, astm a182 Long Weld Neck Flanges as per asme / ansi B16.5 Long Weld Neck flanges, ansi B16.47 Long Weld Neck flanges, Din Long Weld Neck flanges, jis Long Weld Neck flanges & uni Long Weld Neck flanges Standards.We offer high quality Long Weld Neck (lwn) Flanges in all size, classes & dimensions like Class 150 Long Weld Neck Flanges, Class 300 Long Weld Neck Flanges, Class 600 Long Weld Neck Flanges, Class 900 Long Weld Neck Flanges, Class 1500 Long Weld Neck Flanges & Class 2500 Long Weld Neck FlangesWe are largest Manufacturer, Supplier and Exporter of Long Neck Weld Flanges, ASME 16.5 Long Weld Neck Flanges. Long Neck Welding (abbreviated LWN) flanges are similar to a standard Welding Neck flange, but the “Neck” is considerably longer. Long weld neck flanges, also called LWN flange, are similar to standard weld neck flanges but the neck is considerably longer. Long weld neck flanges are available in following specifications:
Long Weld Neck Flanges
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ASME Long Weld neck Flanges, ASTM Long Weld neck Flanges, Stainless Steel Long Weld neck Flanges, Duplex Steel Long Weld neck Flanges, Monel and Inconel Long Weld neck Flanges, Compound Steel Long Weld neck Flanges Producer and Exporter in India. ASTM/ASME – A 182, SA 182, ASTM B247, B361, Aluminum Long Weld neck Flanges, Carbon Steel Long Weld neck Flanges, Nickel Composite Long Weld neck Flanges, supplier.With respect to our all around heeled modern experience, Shasan Piping solution offers an aggregate scope of Long Weld Neck Flanges. We give diverse sorts of Long Weld Neck Flanges, for example, Stainless Steel Long Neck Flanges, Carbon Steel Long Neck Flanges, Compound Steel Long Neck Flanges, Nickel Composite Long Neck Flanges, Copper Amalgams Long Neck Flanges, Low Temperature Carbon Steel Long Neck Ribs, Duplex and Super Duplex Steel Long Neck Ribs, and so on. Comes in disparate evaluations, sizes, particulars and models, these neck spines are being supplied from the most-reliable sellers by our specialists. In the interim, these spines are somewhat restrictive for the reason of their uncomplicated network with different channels.Range :½” (15 NB) to 60” (1500NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. available with NACE MR 01-75.Features : Dimensional accuracy High efficiency Corrosion resistance Durable Excellent finish Details : Stainless Steel Standard - ASTM / ASME A/SA 182 Grade - F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L Titanium Standard - ASTM B381. Grade - Grade 1, Grade 2, Grade 4, Grade 5, Grade 6, Grade 7, Grade 9, Grade 19, Grade 23 Duplex Steel Standard - ASTM / ASME A/SA 182 Grade - F 44, F 45, F51, F 53, F 55, F 60, F 61 Copper Alloy Standard - ASTM / ASME SB 61 / 62 / 151 / 152. Grade - UNS NO. C 70600 (CU -NI- 90/10), C 71500 (CU -NI- 70/30) C 71640 Nickel Alloy Standard - ASTM / ASME SB 564 / 160 / 472 Carbon Steel Standard - ASTM A 105/A694/ A350 LF3/A350 LF2. Grade - F42/46/52/56/60/65/70 Low Temperature Carbon Steel - ASTM A 350 LF2 / A350 LF3 Alloy Steel Standard - ASTM A182 Grade - F1/F5/F9/F11/F22/F91 Nickel Alloy Standard : Nickel 200 – UNS N02200 Nickel 201 – UNS N02201 Monel 400 – UNS N04400 Monel K500 – UNS N05500 Inconel K600 – UNS N06600 Inconel 601 – UNS N06601 Inconel 625 – UNS N06625 Inconel 800 – UNS N08800 Inconel 800H – UNS N08810 Inconel 825 – UNS N08825 Hastelloy C276 – UNS N10276 Alloy 20 – UNS N08020
Best Deals from Long Weld Neck Flanges
Stainless Steel 316L Long Weld Neck Flanges
1,100 Per Piece
1 Piece(s) (MOQ)
Our packages are designed to provide maximum protection to the product from mechanical damage and logistical jostling. Additionally, the package is labeled to provide important details. Only high quality raw material is used for preparing the offered lot and we make sure that it is sourced from the trusted places and that too after complete quality confirmation.
Long Weld Neck Flanges
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We offer long weld neck flanges in various diameters and sizes. Highly resistant to corrosion and abrasion, our weld neck flanges, is available in different grades of material.
Lwn Flange
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(LWN flange) is also call integral flange, it means a welding neck flange has a very long neck . Commonly, the welding neck flange has a tapered neck and a bevel end which is going to butt welding with the matching pipe. But the long weld neck flange, has a straight short pipe as the neck of a long weld neck flange.
Long Weld Neck Flanges
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We are a government approved largest Manufacturer, Supplier and Exporter of Long Neck Weld Flanges, ASME 16.5 Long Weld Neck Flanges. Long Neck Welding (abbreviated LWN) flanges are similar to a standard Welding Neck flange, but the “Neck” is considerably longer. Long weld neck flanges, also called LWN flange, are similar to standard weld neck flanges but the neck is considerably longer. Long weld neck flanges are available in following specifications:
Long Weld Neck Flanges
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Long weld neck flanges, Stainless Steel Weld Neck Flanges: ASTM A182 F202, F304304L304H, F316316L, F316H, F316TI, F310, F321, F904L Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS.
Long Weld Neck Flanges
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Long weld neck flanges, Stockist Of SS 904L Flanges . Stainless Steel 904L Flanges Are Manufactured Using High Quality Materials. We Have Ready Stock Of Stainless Steel 904L Flanges To Cater Even Your Small Requirements .
Alloy Steel Long Weld Neck Flange
2,500 - 7,500 Per Piece
100 Piece (MOQ)
Long Wel-Neck is same as weldneck flange with only difference in length of flange. LWN flange having extra length. Besides of above, we are experts in manufacturing customized flanges as per client drawing. Grades: Alloy Steel ASTM A182 F5 Flanges Alloy Steel ASTM A182 F9 Flanges Alloy Steel ASTM A182 F11 Flanges Alloy Steel ASTM A182 F22 Flanges Alloy Steel ASTM A182 F91 Flanges
Long Weld Neck Flanges
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We are recognized in the Indian and Global markets for providing Long Weld Neck Flanges at attractive rates in the industry. Demanded for their different features, these Long Weld Neck Flanges are designed and manufactured, using premium metals on a specification basis of the clients. By thorough testing of the Long Weld Neck Flanges, we ensure that they are attuned to give high performance on a regular basis. Remarkable Features : High stress bearing capacity Good shock resistance Excellent metallurgical strength Durable Resistant to corrosion Demanded for : All-purpose piping needs Refineries Range : ½� (15 NB) to 48� (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. Available with NACE MR 01-75 Availability : Stainless Steel : Grade : 304, 304L, 304H, 309, 310, 310S, 316, 316Ti, 316 L, 317, 317L, 321, 347, 347 H, 409, 410, 410S, 420, 430L Duplex Steel : Grade : 2205 (UNS No. S31803), 2507 (UNS No. S32750) Nickel Alloy : Grade : Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II) Copper Alloy : Grade : UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30) Standard : ANSI : ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 DIN : DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 B.S : BS4504 , BS4504, BS1560, BS10 Other : Plate, Plate Blank What we offer : Hot Dipped Galvanizing Heat Treatment CNC Machining Threading
Stainless Steel Long Weld Neck Flange
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The Stainless Steel Long Weld Neck Flange is suitable for high-pressure, cold or hot temperature applications. Here, you will get the SS Long Weld Neck Flange at the most economical prices.
Long Neck Flanges
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10 Piece (MOQ)
Long Weld Neck Flange
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10000 Piece (MOQ)
Long Weld Neck Flange
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10 Piece (MOQ)
Long Weld Neck Flange Standard Specifications Standards/Dimensions : ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, BS, GOST, SS SP-44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605 Flange Face Types/Connection Type : Flat Face Flange (FF), Raised Face Flange (RF), Ring Joint Flange (RTJ), Lap Joint Flange, Male and Female Flange (M&F), Large and Small Tongue-and-Groove Flange (T&G) Custom Design : As per your drawing | AS, BS, ANSI, DIN, JIS | Equal and Reducing Configurations Material Test Certificates (MTC) : As per EN 10204 3.2 and EN 10204 3.1, Test Certificates certifying NACE MR0175, NACE MR0103 Test Certificates : 100% Radiography Test Report, EN 10204/3.1B, Raw Materials Certificate, Third Party Inspection Report, etc Tests : Hydrostatic testing machine, Direct-reading Spectrograph, UI trasonic flaw detector, X-ray detector, Magnetic particle detector Equipment/Machines : Press machine, Pushing Machine, Bending machine, Sand-blasting machine, electric bevelling machine, etc. Coating : Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized Details : Long Weld Neck Flange Material Grades Long Weld Neck Flange Standards ASME B16.5 Long Weld Neck Flange Class 150 Dimensions ASME B16.5 Long Weld Neck Flange Class 300 Dimensions ASME B16.5 Long Weld Neck Flange Class 400 Dimensions ASME B16.5 Long Weld Neck Flange Class 600 Dimensions ASME B16.5 Long Weld Neck Flange Class 900 Dimensions ASME B16.5 Long Weld Neck Flange Class 1500 Dimensions ASME B16.5 Long Weld Neck Flange Class 2500 Dimensions How To Order Long Weld Neck Flanges? Long Weld Neck Flange Industries and Applications Long Weld Neck Flanges Supply and Export Network Long Weld Neck Flange Price and Other Flange Types Weld Neck Flange Long Weld Neck Flange Slip On Flange Spectacle Blind Flanges Socket Weld Flanges Blind Flanges / Dummy Flange Screwed / Threaded Flanges Orifice Flanges Lap Joint Flanges ANSI B16.5 Square Flanges Ring Type Joint Flanges Tongue and Groove Flange Expander Flanges Reducing Flanges Male & Female Flanges Weldolet Flange Nipolet Flange Backing Ring Flanges Ring Spacer Flanges Paddle Blind Flanges Plate Flange High Hub Blind Flange Custom Flanges Swivel Ring Flange
Long Weld Neck Flanges
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We ashapura steel & alloys offer this long weld neck flanges in carbon steel materials. These long weld neck flanges are offered in various diameters and sizes. Long weld neck flanges are machined with the wall thickness of the flange having the same dimensions of the matching pipe. the lighter is the pipe the larger will be the bore and vice versa. These flanges are equally suitable for high-pressure cold or hot temperature applications. • size: 12"nb to 48 "nb in • class : 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs specifications as per the international standard: • astm, asme, api, aisi, bs, ansi, din, jis, mssp, nace materials: carbon steel long neck weld flange – cs long weld neck flanges astm a105 lwnrf flanges . astm a350 lf2 lwnrf flanges
Long Weld Neck Flanges
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Chemtech Alloys Pvt. Ltd is one of the prominent manufacturers and exporters of Long Weld Neck Flanges & Stainless Steel Long Weld Neck Flange. Our product range also comprises of Carbon Steel Flanges, Spectacle Flange and Slip On Flange. We offer long weld neck flanges in various diameters and sizes. Highly resistant to corrosion and abrasion, our weld neck flanges, is available in different grades of material.Long Weld Neck Flanges available as per the following specifications :Grades :ASTM/ ASME sa 790 uns no s 31803, s 32205, s 32550, s 32750, s 32760
Long Weld Neck Flanges
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We are recognized in the Indian and Global markets for providing Long Weld Neck Flanges at attractive rates in the industry. Demanded for their different features, these Long Weld Neck Flanges are designed and manufactured, using premium metals on a specification basis of the clients. By thorough testing of the Long Weld Neck Flanges, we ensure that they are attuned to give high performance on a regular basis.Remarkable Features : High stress bearing capacity Good shock resistance Excellent metallurgical strength Durable Resistant to corrosion Demanded for : All-purpose piping needs Refineries Range : ½(15 NB) to 48 (1200NB) in 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS ASA 150, ASA 300, PN 6,10,16,25, 40,64,100,160 ETC. Available with NACE MR 01-75Availability : Stainless Steel Grade - 304, 304L, 304H, 309, 310, 310S, 316, 316Ti, 316 L, 317, 317L, 321, 347, 347 H, 409, 410, 410S, 420, 430L Duplex Steel Grade - 2205 (UNS No. S31803), 2507 (UNS No. S32750) Nickel Alloy Grade - Nickel 200 (UNS No. N02200), Nickel 201 (UNS No. N02201), Monel 400 (UNS No. N04400), Monel 500 (UNS No. N05500), Inconel 800 (UNS No. N08800), Inconel 825 (UNS No. N08825), Inconel 600 (UNS No. N06600), Inconel 625 (UNS No. N06625), Inconel 601 (UNS No. N06601), Hastelloy C 276 (UNS No. N10276), Alloy 20 (UNS No. N08020), Titanium (Grade I & II) Copper Alloy Grade - UNS No. C 10100, 10200, 10300, 10800, 12000, 12200, 70600, 71500, UNS No. C 70600 (Cu -Ni- 90/10), C 71500 (Cu -Ni- 70/30) Standard : ANSI - ANSI B16.5, ANSI B16.47, MSS SP44, ANSI B16.36, ANSI B16.48 DIN - DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636, DIN2637, DIN2638, DIN2673 B.S - BS4504 , BS4504, BS1560, BS10 What we offer : Hot Dipped Galvanizing Heat Treatment CNC Machining Threading
Long Weld Neck Flanges
126 Per Kilogram
Long Weld Neck Flanges
Stainless Steel Long Weld Neck Flanges
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Stainless Steel Long Weld Neck Flanges
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We are offering stainless steel long weld neck flanges (wnrf). The long weld neck flange is offered by our company which is manufactured to perfection with the help of the state-of-the-art equipments. Our long weld neck flanges are often used in vessel manufacturing. This product has a shape of a slip on flange with a piece of pipe already attached but are formed and machined in a one-piece construction. The basic ingredients used to manufacture this product are known to be of the best quality which is highly appreciated by our clients. We offer to the clients a wide range of product which is manufactured using the best quality of machines and the latest technology available in the market. These products have a high level of endurance, are very flexible, they are resistant to heat and they are immensely reliable in the market. This product is available in many sizes which are designed to withstand all levels of pressure. Our long weld neck flange is available in many series and has a heavy wall thickness making it ideal for highly corrosive applications. This seamless product is offered in affordable price which is beneficial for our clients. We ensure that the product we offer is put through stringent quality check process which defines its quality to a great extent. features: •durable •hard and sturdy •sophisticated. flanges form : stainless steel astm a 182, a 240 flanges size : 18" nb to 48"nb. flanges class : 150, 300, 400, 600, 900, 1500 & 2500 flanges grade : f304, 304l, 304h, 316, 316l, 316ti, 310, 310s, 321, 321h, 317, 347, 347h, 904l
Long Weld Neck Flange
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Stainless Steel Long Weld Neck Flange
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1 Metric Ton (MOQ)
Carbon Steel Long Weld Neck Flanges
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Carbon steel long weld neck flanges in carbon steel materials. These carbon steel long weld neck flanges are offered in various diameters and sizes. Carbon steel long weld neck flanges are machined with the wall thickness of the flange having the same dimensions of the matching pipe. the lighter is the pipe the larger will be the bore and vice versa. These flanges are equally suitable for high-pressure cold or hot temperature applications. Size: 12"nb to 48 "nb in class : 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs specifications as per the international standard:astm, asme, api, aisi, bs, ansi, din, jis, mssp, nace
Long Weld Neck Flange
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We offer long neck weld flanges in various types to meet the demands of several engineering and process industries. These flanges are in accordance with the international standards of ASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP and NACE, and are offered along with mill test certificate as per EN 10204 / 3.1B.
Long Weld Neck Flanges
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Size : 1/2"NB TO 36"NB IN Class : 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS DIN Standard ND-6,10, 16, 25, 40 Etc. SPECIFICATIONS AS PER THE INTERNATIONAL STANDARDASTM, ASME, API, AISI, BS, ANSI, DIN, JIS, MSSP, NACE MATERIALS : Stainless Steel Long Neck Weld Flange – SS Long Neck Weld Flange ASTM A182 Grade : F 304, 304L, 304H, 309S, 309H, 310S, 310H, 316, 316TI, 316H, 316L, 316LN, 317, 317L, 321, 321H, 347, 347H, 904L. Duplex Steel Long Neck Weld Flange ASTM / ASME A/SA 182 UNS F 44, F 45, F51, F 53, F 55, F 60, F 61. Alloy Steel Long Neck Weld Flange – AS Long Neck Weld Flange ASTM SA 182 F1/F5/F9/F11/F22/F91Carbon Steel Long Neck Weld Flange – CS Long Neck Weld Flange ASTMA 105 Gr. F42/46/52/56/60/65/70 Low Temperature Carbon Steel Long Neck Weld Flange – LTCS Long Neck Weld Flange A350 LF2/A350 LF3 Nickel Alloy Long Neck Weld Flange :Standard: ASTM / ASME SB 564 / 160 / 472.UNS 10276 (HASTELLOY C 276 Long Neck Weld Flange )UNS 2200 (NICKEL 200 Long Neck Weld Flange ), UNS 2201 (NICKEL 201 Long Neck Weld Flange ), UNS 4400 (MONEL 400 Long Neck Weld Flange ), UNS 8020 (ALLOY 20 Long Neck Weld Flange )UNS 8825 (INCONEL 825 Long Neck Weld Flange ), UNS 6600 (INCONEL 600 Long Neck Weld Flange ), UNS 6601 (INCONEL 601 Long Neck Weld Flange ), UNS 6625 (INCONEL 625 Long Neck Weld Flange ), Copper Alloy Long Neck Weld Flange ASTM / ASME SB 61 / 62 / 151 / 152.C 70600 (CU -NI- 90/10) – Cupro Nickel Long Neck Weld Flange C 71500 (CU -NI- 70/30) – Copper Nickel Long Neck Weld Flange UNS NO. C 92200, UNS NO. C 83600, UNS NO. UNS NO C 10100,C 10200, C 10300, C 10800, C 12000, C 12200 VALUE ADDED SERVICESHot Dip Galvanizing ,Epoxy Coating, TEST CERTIFICATE Mill Test Certificate as per EN 10204 / 3.1B
Long Weld Neck Flanges
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Long Weld Neck Flanges
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We offer Long Weld Neck Flanges in alloy and non-alloy materials. These alloy long weld neck flanges are offered in various diameters and sizes. Long weld neck flanges are machined with the wall thickness of the flange having the same dimensions of the matching pipe. Duplex & Super Duplex Steel : UNS S31803 UNS S32205 (F 51), UNS S32750 (F 53), UNS S32760 (F 55), UNS S31254 (SMO 254). High Nickel Alloys : Monel 400 , Monel K 500 , Incoloy 600 , Incoloy 625 , Incoloy 800H , Incoloy 825, Incoloy 718, Inconel X - 750, Alloy 20 (CB 20) , Hastelloy C 276 , Hastelloy C 22 , Hastelloy C4. Other Alloys : Titanium Gr 2 , Titanium Gr 5, Aluminium Bronze (AB 2) , Phosphorous Bronze (PB).
Long Weld Neck Flange
500 - 30,000 Per piece
30 Piece (MOQ)
Long Neck Weld Flange
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We are offering long neck weld flange our clients with long neck weld flanges in various types to meet the demands of several engineering and process industries. Fabricated using quality nickel alloy, these long neck weld flanges are hot dip galvanized and epoxy coated, as per the request of our clients. These flanges are in accordance with the international standards of astm, asme, api, aisi, bs, ansi, din, jis, mssp and nace, and are offered along with mill test certificate as per en 10204 / 3.1b. specifications: size: 1/2"nb to 36"nb in class: 150 lbs, 300 lbs, 600 lbs, 900 lbs, 1500 lbs, 2500 lbs standards: astm / asme sb 564 / 160 / 472 uns 10276 (hastelloy c 276 long neck weld flange) uns 2200 (nickel 200 long neck weld flange) uns 2201 (nickel 201 long neck weld flange) uns 4400 (monel 400 long neck weld flange) uns 8020 (alloy 20 long neck weld flange) uns 8825 (inconel 825 long neck weld flange) uns 6600 (inconel 600 long neck weld flange) uns 6601 (inconel 601 long neck weld flange) uns 6625 (inconel 625 long neck weld flange) types: copper alloy long neck weld flange astm / asme sb 61 / 62 / 151 / 152 c 70600 (cu -ni- 90/10) - cupro nickel long neck weld flange c 71500 (cu -ni- 70/30) - copper nickel long neck weld flange uns no. C 92200, uns no. C 83600, uns no. Uns no c 10100, c 10200, c 10300, c 10800, c 12000, c 12200 duplex steel long neck weld flange astm / asme a/sa 182 uns f 44, f 45, f51, f 53, f 55, f 60, f 61 stainless steel long neck weld flange standard: astm a182 grade : f 304, 304l, 304h, 309s, 309h, 310s, 310h, 316, 316ti, 316h, 316l, 316ln, 317, 317l, 321, 321h, 347, 347h, 904l alloy steel long neck weld flange astm sa 182 f1/f5/f9/f11/f22/f91 carbon steel long neck weld flange astma 105 gr. F42/46/52/56/60/65/70 low temperature carbon steel long neck weld flange a350 lf2/a350 lf3
Alloy Steel Long Weld Neck Flange
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We offer alloy steel long weld neck flanges in alloy materials. These alloy long weld neck flanges are offered in various diameters and sizes. Long weld neck flanges are machined with the wall thickness of the flange having the same dimensions of the matching pipe. The lighter is the pipe, the larger will be the bore and vice versa. These flanges are equally suitable for high-pressure, cold or hot temperature applications. Materials: Alloy steel long weld neck flange – as long weld neck flange Standard: ASTM A234 WP5 Long Weld Neck Flange ASTM A234 WP9 Long Weld Neck Flange ASTM A234 WP11 Long Weld Neck Flange ASTM A234 WP22 Long Weld Neck Flange ASTM A234 WP91 Long Weld Neck Flange