Yuhong Group Co.,Ltd
| Payment Terms | L/C, T/T |
| Supply Ability | According To Client's Request |
| Delivery Time | 10-90 Days |
| Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Standard | ASTM A350 LF2 |
| Material | Alloy Steel |
| Material Grades | LF2 |
| Size | Customizable |
| Type | Self Reinforeced Nozzle |
| Drawing | Customizable |
| Brand Name | YUHONG |
| Model Number | ASTM A350 CL.2 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 |
| Place of Origin | China |
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Product Specification
| Payment Terms | L/C, T/T | Supply Ability | According To Client's Request |
| Delivery Time | 10-90 Days | Packaging Details | Ply-wooden Case /Iron Case/ Bundle with plastic Cap |
| Standard | ASTM A350 LF2 | Material | Alloy Steel |
| Material Grades | LF2 | Size | Customizable |
| Type | Self Reinforeced Nozzle | Drawing | Customizable |
| Brand Name | YUHONG | Model Number | ASTM A350 CL.2 |
| Certification | ABS, GL, DNV, NK, PED, AD2000, GOST9941-81, CCS, ISO 9001-2015 | Place of Origin | China |
| High Light | ASTM A350 LF2 cryogenic nozzle ，self-reinforced pressure vessel nozzle ，cryogenic system LF2 nozzle | ||
ASTM A350 LF2 Self Reinforeced Nozzle For Cryogenic Pressure Vessels and Systems
ASTM A350 LF2 is a low-temperature carbon steel forging material that requires mandatory notch toughness testing. It is a specific grade within the ASTM A350 standard. Its excellent resistance to brittle fracture in low-temperature environments makes it widely used in the manufacture of pressure-bearing piping components such as flanges, valves, and fittings. It is particularly suitable for applications requiring low temperatures or high toughness, such as liquefied natural gas (LNG) and petrochemical cold zones.
The ASTM A350 LF2 Self-Reinforced Nozzle is a nozzle made of LF2-grade forged steel with -46°C impact toughness. Its inherently thickened wall meets the ASME specification for opening reinforcement, eliminating the need for external reinforcement rings. This design is particularly suitable for applications requiring high low-temperature toughness and structural simplicity. Design and manufacturing must strictly adhere to the ASME BPVC specification.
| Element | Composition |
| Carbon, max | 0.30 |
| Manganese | 0.60 - 1.35 |
| Phosphorus, max | 0.035 |
| Sulfur, max | 0.040 |
| Silicon [Note A] | 0.15 - 0.30 |
| Nickel | 0.40 max [Note B] |
| Chromium | 0.30 max [Note B,C] |
| Molybdenum | 0.12 max [Note B,C] |
| Copper | 0.40 max [Note B] |
| Columbium | 0.02 max [Note B] |
| Vanadium | 0.08 max |
| Tensile Strength, ksi [MPa] | Yield Strength, min, ksi [MPa] [Note B, C] | Elongation | Reduction of Area, min, % | |
| Round Specimen in 4D, min, % | Strip Specimen in 2 Inch [50mm], min, % | |||
| 70–95 [485–655] | 36 [250] | 22 | 30 | 30 |
| Minimum Impact Energy Required for Average of Each Set of Three Specimens, ft.lbf [J] | Minimum Impact Energy Permitted for One Specimen only of a Set, ft.lbf [J] | Testing Temperature, °F [°C] |
| 15 [20] | 12 [16] | −50 [−46] |
Application
Cryogenic Pressure Vessels and Systems
Liquefied Natural Gas (LNG) Facilities: Connections to Storage Tanks, Vaporizers, and Cryogenic Pumps.
Petrochemical Cryogenic Plants: Ethylene/Propylene Splitter, Cryogenic Storage Tanks, and Refrigeration Units.
Air Separation Units (ASUs): Liquid Oxygen/Liquid Nitrogen Storage Tanks and Pipeline Interfaces.
Harsh Environment Pressure Pipelines
Branch Connections for Oil and Gas Pipelines in Arctic and Cold Regions.
Valve and Instrument Interfaces for Refrigerant (e.g., Ammonia, CO₂) Circulation Systems.
High-Cleanliness and Corrosion-Sensitive Systems
Aseptic Connections for Pharmaceutical/Bioreactor and Food Processing Tanks.
Seawater Cooling Systems (LF2 requires an anti-corrosion coating).
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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