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Prime Tube Impex is India's reliable manufacturer, supplier, stockist & exporter of Weld Neck Flanges in India. We supply ANSI B16.5 Weld Neck flanges in various sizes, standards, materials, grades, class, pressure, face type and other specifications as per clients requirements. These Weld Neck flanges are manufactured by using finest quality raw materials and under the supervision of experienced engineers. Our quality control inspectors do various quality tests to make sure the product is quality approved and defect free before delivering these Weld Neck flanges to our customers. We supply ANSI B16.5 Weld Neck Flanges, ASME B16.47 WNFF Flanges, ANSI B16.47 Series A & B Weld Neck Flanges, ANSI B16.48 WNRF Flanges, EN-1092 WNRTJ Flanges, DIN RFWN Flanges, BS4504 Weld Neck Flanges worldwide.

Weld Neck Flanges also known as tapered hub Flanges. These flanges can relocate stress to the pipes, and ensure a decrease in high-stress concentration at the flange bottom. Weld neck flanges are of two types, first type is used with pipes and the other can be used with a process plant but cannot with pipes. Weld Neck Flanges are typically manufactured from forging, and are fabricated to pipes. The rim of the flange has many holes drilled into it which enables the flange to be attached to a bolted flange. These weld neck flanges are manufactured in various national and international standards such as ASTM, ASME, DIN, NFA, JIS, IBR. Our weld neck flanges have good corrosion resistance and strength. Our weld neck flanges are available in various materials like stainless steel, carbon steel, alloy steel, inconel, incoloy, monel, hastelloy, nickel alloy, copper nickel, etc.

We also supply long weld neck flanges also known as reducing weld neck flanges and NW long weld neck flanges also known as high-hub flanges around the globe. These are widely used in many industries & applications like Oil and Gas, Petrochemical, Pharmaceuticals Industry, Power Generation, Shipbuilding, Nuclear Power Plants, Fertilizers Plants, Chemicals Industry, Water and Sewage Desalination Plants, Pulp and Paper Industry, etc.

Prime Tube Impex is your one-stop source for Weld Neck Flanges. Get in touch with us today with your requirements. Our experts will get back to you with the best quote for your requirement for Weld Neck Flanges.

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Weld Neck Flanges Specifications:

Size:	½” (15 NB) to 48″ (1200NB)
Class:	150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS, DIN Standard ND-6,10, 16, 25, 40 Etc.
Standards:	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
Flange Face Type:	Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Coating/Surface Treatment:	Anti-rust Paint, Oil Black Paint, Yellow Transparent, Zinc Plated, Cold and Hot Dip Galvanized

Grade Specifications of Weld Neck Flanges

Stainless Steel Weld Neck Raised Face Flanges

Standards:	ASTM A182 , A240
Grades:	F 304, 304L, 304H, 316, 316Ti, 316H, 316L, 316LN, 309S, 309H, 310S, 310H,317, 317L, 321, 321H, 347, 347H, 201, 202, 904L

Carbon Steel Weld Neck Raised Face Flanges

Standards:	ASTM A105
Grades:	Gr. F42,46,52,56,60,65,70

Alloy Steel Weld Neck Raised Face Flanges

Standards:	ASTM A182
Grades:	F1,F5,F9,F11,F22,F91

Nickel Alloy Steel Weld Neck Raised Face Flanges

Standards:	ASTM SB564, SB160, SB472, SB162
Grades:	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),

Copper Alloy Weld Neck Raised Face Flanges

Standards:	ASTM SB 61 , SB62 , SB151 , SB152
Grades:	UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200,

Duplex Steel Weld Neck Raised Face Flanges

Standards:	ASTM A182, A240
Grades:	UNS F 44, F 45, F51, F 53, F 55, F 60, F 61

Weld Neck Flanges - Types

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