Yuhong Group Co.,Ltd
| Payment Terms | T/T, L/C AT SIGHT |
| Supply Ability | 1000 pcs per month |
| Delivery Time | Depends on order quantity |
| Packaging Details | Ply-wooden Case /Iron Case/ Wooden pallet |
| Standard | ASME SA350 |
| Material | LF2 |
| Surface | RTJ |
| Type | Weld Neck Flange |
| Manufacturing Way | Forge |
| Certificate | ABS, GL, DNV, NK, PED, AD2000, GOST 9941 |
| Dimensions | ANSI Flange, ASME Flange, BS Flange, DIN Flanges, EN Flange |
| Packaging | Plywood Case /Iron Case Packing |
| Brand Name | YUHONG |
| Model Number | SA350 LF2 |
| Certification | ASME, ABS, GL, DNV, NK, PED, ISO 9001-2008 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T, L/C AT SIGHT | Supply Ability | 1000 pcs per month |
| Delivery Time | Depends on order quantity | Packaging Details | Ply-wooden Case /Iron Case/ Wooden pallet |
| Standard | ASME SA350 | Material | LF2 |
| Surface | RTJ | Type | Weld Neck Flange |
| Manufacturing Way | Forge | Certificate | ABS, GL, DNV, NK, PED, AD2000, GOST 9941 |
| Dimensions | ANSI Flange, ASME Flange, BS Flange, DIN Flanges, EN Flange | Packaging | Plywood Case /Iron Case Packing |
| Brand Name | YUHONG | Model Number | SA350 LF2 |
| Certification | ASME, ABS, GL, DNV, NK, PED, ISO 9001-2008 | Place of Origin | CHINA |
| High Light | SA350 LF2 Long Welding Neck Flange ，Cryogenic Piping Long Welding Neck Flange | ||
Overview
The SA350 LF2 Long Welding Neck Flange is a type of flange that is commonly used in pressure vessel, piping, and industrial applications where strength, durability, and resistance to extreme conditions are required. The "SA350 LF2" refers to the material specification (ASTM A350, Grade LF2), and "long welding neck" refers to the specific design of the flange.
SA350 LF2 Long Welding Neck Flanges are widely used in industries where low-temperature toughness, strength, and the ability to withstand pressure are required. These flanges are particularly suited for applications in cryogenics, offshore oil and gas, chemical processing, and power generation systems. Their design, with the extended neck, ensures that they can provide a strong, secure, and durable connection in challenging and demanding environments.
Key Features of SA350 LF2 Long Welding Neck Flange:
Material (SA350 LF2):
Long Welding Neck Design:
A long welding neck flange has a longer neck compared to a standard welding neck flange. This extended neck provides several advantages:
Strength and Stability: The long neck enhances the strength of the flange, providing better alignment with the pipe and minimizing stresses in the welded connection.
Ease of Welding: The long neck allows for easier and more secure welding, offering a larger area for the weld joint, which improves the integrity and reliability of the connection.
Pressure Distribution: The long neck design helps distribute the stresses from internal pressure more evenly along the length of the flange, reducing the potential for failure.
Chemical Composition (%) of ASTM A350 LF2:
| Grade | Weight % |
| C | <0.30% |
| Si | 0.15 – 0.30% |
| Mn | 0.60 – 1.35% |
| P | <0.035% |
| S | <0.040% |
| Cr | <0.3% |
| Mu | <0.12% |
| Cu | <0.4% |
| Nb | <0.02% |
| V | <0.08% |
Mechanical Property Requirements of ASTM A350 LF2:
| Tensile Strength Mpa | Yield (0.2%) MpA | Elongation % | Reduction of Area % | Charpy J -46°C | Hardness HB |
| 485-655 (70-95KSi) | >250 (36KSi) | >22 | >30 | >20 | <197HB |
Applications of SA350 LF2 Long Welding Neck Flange:
Low-Temperature Service:
Piping Systems in Harsh Environments:
Pressure Vessel and Heat Exchanger Applications:
Pipeline Connections:
Subsea and Offshore Applications
Cryogenic Storage and Transport:
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Importer,Exporter,Trading Company,Seller,Other
Year Established:
2007
Total Annual:
50M-70M
Employee Number:
50~850
Ecer Certification：
Verified Supplier
YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9... YUHONG HOLDING GROUP is one of the largest Procurement, Engineering & Contracting Group companies in China. Our group branch company and factory have been already approved by : ABS, LR, DNV, GL, BV, CCS, KR, PED 97/23/EC, AD2000-WO, GOST9941-81, CCS, TS, CNNC, ISO9...
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