New Century Forging Co., Ltd
86-351-5270488
Model No.: Long Welding Neck
Brand: NC
Status: New
Species: Flange
Applicable Industry: Manufacturing Plant
Video Factory Inspection: Provided
Mechanical Test Report: Provided
Marketing Type: Ordinary Product
Warranty Period: 1.5 Years
Packaging: PLYWOOD CASE
Productivity: 12000TON/YEAR
Transportation: Ocean,Land,Air,Express
Place of Origin: CHINA
Supply Ability: 12000TON/YEAR
Certificate: ISO9001:2015
HS Code: 73079100
Port: TIANJIN,SHANGHAI
Payment Type: L/C,T/T
Incoterm: FOB,CFR,CIF
Long weld neck is that the neck height is higher, which improves the rigidity and bearing capacity of the flange. Compared with butt welding flanges, the welding workload is large, the welding rod consumption is high, and it cannot withstand high temperature and pressure, repeated bending and temperature fluctuations, but it is more convenient for on-site installation and can omit the process of welding seam scratching, which is more popular.
This is the most common type of high pressure pipe flange. They are distingguished from other types of pipe flanges by their long tapered hub and gentle transition of thickness in the region of the butt weld joining them to the pipe. The long tapered hub provides an import reinforcement of the weld neck proper in terms of strength and resistance to dishing.
The Weld Neck Flange is very resistant to dishing and has a very strudy connection because it has the pipe along with the tapered hub. The flanges are ideal for extreme fluctuations of temperature. They are ideal in enviroments where there maybe a lot of bending and handling of the flange. Preferred in an environment with extreme temperature conditions. This type of flange is prefered for every severe service condition- resulting from high pressure or from sub-zero or elevated temperature. They are used in situations where loading conditions are substantially constant or fluctuate between wide limits. This is probably the best welding flange available because of its high, heavy neck. Highly recommended wherever a sound welded joint connection is needed.
The industrial processes come into die forging, and machining, we can provide a wide range of flanges, following on standards like ASME B16.5 Flange , ASME B16.47 Flange, DIN 2573 Slip On Flange, DIN 2631 Welding Neck flange, JIS Flange 5K SOP Flange and JIS Flange 10K SOH Flange. ASME Flange include ASME B16.5 Flange, ASME B16.47-A Flange, ASME B16.47-B Flange, this standard system include slip on flange, blind flange, welded neck flange, Threaded Flange, lapped joint flange (loose flange), socket welded flange, B16.36 Orifice Flange, long weld neck flange and Special Flange, sizes from 1/2 inch to 60 inch, class 150, class 300, class 600, class 900, class 1500, class 2500.
Product Categories : Special Flange > Long Neck Flange
New Century Forging CO.,LTD started doing flanges since 1997, with new factory established in 2002 in “Hometown of Forging in China”-Dingxiang County . With 280 professional workers, 50,000 square meters, the annual production capacity is 20,000 ton. Our products have been exported to South Korea,Japan,Italy,Turkey,Germany,America,Denmark…, and got good reputation for good quality, fair price and reliable after-service.
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Forged Flange |
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Size |
1/2"-72" |
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Type |
Welding Neck, Slip-On, Blind, Socket Weld, Lap Joint, Threaded, Orifice Flange, Long welding neck, Spectacle Blind… |
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Standard |
ANSI/ASME, MSS, API, AWWA, EN1092-1, DIN, JIS, GOST, AS, BS. KS… |
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Class/rate |
ANSI 150LBS-2500LBS |
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DIN PN6-PN160 |
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JIS 5K-30K |
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Materials |
Carbon Steel |
ASTM SA/A105(N), C22.8, ST37.2, A516GR60/70… |
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Low Temperature Carbon Steel: ASTM SA350 LF2 |
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High Strength Steel: ASTM SA694 F42/46/52/56/60/65 |
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Stainless Steel |
ASTM A182 F304/304L/316/316L |
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Alloy Steel |
ASTM A182 F1/F5/F9/F11/F22/F91… |
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Duplex stainless steel |
ASTM A182 F51/F53/F55/F60 |
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Surface Treatment |
Yellow/black/blue coating, anti-rust oil |
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Packing |
Plywood case/pallet |
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Delivery |
Usually within one month after receiving the formal order . |
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Inspection |
Factory in-house or Third Party inspection available upon your requests. |
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Non-standard Forgings |
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We can also manufacture non-standard flanges and forgings according to clients’ request and drawings. |
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