Home > Weld Neck Flanges (WNRF)
Weld neck flanges (WNRF) play a key role in piping systems and are prized for their sturdy build and dependable performance. Featuring a tapered hub for straightforward welding to the pipe, they lower stress and boost strength. Manufactured from carbon steel, stainless steel, and steel alloys, these flanges deliver excellent corrosion resistance and mechanical qualities. Commonly employed in sectors like oil and gas, petrochemical, and power generation, they form durable, leak-free joints for demanding applications that require durability and dependability. They deliver reliability.
Dimensions :ANSI B16.5, ANSI B16.47 Series A & B, MSS SP44, ASA, API-605, AWWA, Custom Drawings
Size :1/2″ (15 NB) up 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.
DIN :DIN2527, DIN2566, DIN2573, DIN2576, DIN2641, DIN2642, DIN2655, DIN2656, DIN2627, DIN2628, DIN2629, DIN 2631, DIN2632, DIN2633, DIN2634, DIN2635, DIN2636,DIN2637, DIN2638, DIN2673
BS : BS4504 , BS4504, BS1560, BS10
Flange Face Type : Flat Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Stainless Steel Weld Neck Flanges :
ASTM A 182, A 240 F 304, 304L, 304H, 316, 316L, 316Ti, 310, 310S, 321, 321H, 317, 347, 347H, 904L
Duplex & Super Duplex Steel Weld Neck Flanges :
ASTM / ASME A/SA 182 F 44, F 45, F51, F 53, F 55, F 60, F 61
Carbon Steel Weld Neck Flanges :
ASTM / ASME A/SA 105 ASTM / ASME A 350 , ASTM A 181 LF 2 / A516 Gr.70 A36, A694 F42, F46, F52, F60, F65, F706
Low Temperature Carbon Steel Weld Neck Flanges: ASTM A350, LF2, LF3
Alloy Steel Weld Neck Flanges :
ASTM / ASME A/SA 182 & A 387 F1, F5, F9, F11, F12, F22, F91
Copper Alloy Steel Weld Neck Flanges : ASTM SB 61 , SB62 , SB151 , SB152 UNS No. C 70600 (Cu-Ni 90/10), C 71500 (Cu-Ni 70/30), UNS No. C 10100, 10200, 10300, 10800, 12000, 12200
Nickel Alloy Weld Neck Flanges :
ASTM SB564, SB160, SB472, SB162 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)
| Weld Neck Raised Face Flange | Raised Faced Weld Neck Flanges |
| ANSI B16.5 Weld Neck Flanges | Weld Neck Flange Dimensions |
| ASME B16.5 WNRF Flanges | ANSI B16.5 Class 150 Weld Neck Flanges |
| Stainless Steel Weld Neck Flanges Suppliers | SS Weld Neck Flange |
| Weld Neck Plate Flanges Dealer | ASME B16.47 Series A and B WNRF Flanges Exporter |
| ANSI B16.5 class 150 WNRF Flange Stockholder | ANSI 150 Weld Neck Flange Distributors |
| Carbon Steel Weld Neck Flange | High Quality WNRF Flanges Manufacturer |
| ASTM A182 Stainless Steel WNRF Flange | Duplex Steel Weld Neck Flange |
| Super Duplex Steel Weld Neck Forged Flange | Copper Nickel Weld Neck Pipe Flanges |
| High Nickel Alloy WNRF Flanges | Hastelloy Flat Faced Weld Neck Flanges Stockist |
| Titanium ASME B16.47 Series A and B WNRF Flanges | Inconel Weld Neck Flanges |
At Koasteel, we take pride in being the largest supplier and manufacturer in the New Zealand, delivering advanced solutions for every one of your piping requirements. With cutting-edge manufacturing facilities strategically positioned in the New Zealand, we maintain an extensive stock of more than 25,000 tons of top-quality materials kept readily on hand.
Reach out to us for a fast quote tailored to your needs.
We provide these Weld Neck Flanges (WNRF) in accordance with DIN, ISO, JIS or ANSI Standard.
Weld Neck Flanges (WNRF) are extensively utilized across numerous industries thanks to their outstanding mechanical properties and their resistance to wear, corrosion, and elevated temperatures. You’ll find these flanges commonly employed in the oil and gas, petrochemical, power generation, and aerospace sectors. They serve a key function in connecting equipment, valves, and piping systems. Their remarkable strength, toughness, and wear resistance make them ideal for uses subjected to harsh operating conditions, including high temperatures, high pressures, and corrosive surroundings.
YesWeld neck flanges (WNRF) can be recycled once they are no longer in use. Generally made from recyclable materials like carbon steel, stainless steel, and alloy steels, they can be melted down and reused in new manufacturing operations. This recycling approach promotes sustainability initiatives and lessens environmental impact by cutting down on waste.
