ASME SA350 LF2 Forged Nozzles for Pressure Vessels – Low Temperature Carbon Steel
High-Quality Forged Nozzles for Cryogenic & Low-Temperature Applications
ASME SA350 LF2 forged nozzles are critical components used in pressure vessels, reactors, and piping systems, designed to provide safe and reliable connections for fluid flow, instrumentation, and maintenance access.
As a professional forged nozzle manufacturer in China, we supply high-quality SA350 LF2 nozzles engineered for low-temperature service down to -46°C (-50°F), widely used in LNG, oil & gas, petrochemical, and power industries.
What is a Forged Nozzle?
A nozzle is typically a pipe or tube with varying cross-sectional area, used to:
- Control flow rate, velocity, and pressure
- Direct fluid flow in pressure systems
- Provide inlet/outlet connections on pressure vessels
- Support instrumentation and inspection access
👉 In pressure vessels, forged nozzles act as critical connection points, ensuring structural integrity and operational safety.
Product Specifications
| Item | Description |
|---|---|
| Product Type | Forged Nozzle |
| Material | ASME SA350 LF2 (Class 1 / Class 2) |
| Standard | ASTM A350 / ASME SA350 |
| Temperature Range | Down to -46°C (-50°F) |
| Manufacturing Process | Open-die forging / CNC machining |
| Connection Type | Butt weld / Flanged / Threaded |
| Heat Treatment | Normalized / Quenched & Tempered |
| Inspection | UT, RT, PMI, Mechanical Testing |
Why Choose SA350 LF2 for Nozzles?
ASTM A350 LF2 is specifically designed for low-temperature applications, offering:
- Excellent impact toughness at sub-zero temperatures
- High fracture resistance
- Good weldability
- Reliable mechanical strength under pressure
👉 Ideal for cryogenic and cold environment service conditions.
Mechanical & Impact Properties
- Yield Strength: ≥ 250 MPa
- Tensile Strength: ≥ 485 MPa
- Impact Test: -46°C Charpy V-notch
- High toughness for low-temperature service
Inspection & Quality Control
- Ultrasonic Testing (UT)
- Impact testing (low temperature)
- Hardness testing
- Dimensional inspection
- Third-party inspection (SGS, BV, TUV, DNV)
👉 Ensures compliance with ASME and project specifications.
Material Options for Forged Nozzles
We supply forged nozzles in a wide range of materials:
Carbon Steel
- ASTM / ASME A105 / A105N
- ASTM / ASME A350 LF2, LF3, LF6
- ASTM / ASME A694 F42–F65
Stainless Steel
- ASTM / ASME A182 F304, F304L, F316, F316L
- F321, F310, 904L
Duplex & Alloy Steel
- ASTM / ASME A182 F51, F53, F55
- F11, F22, F5, F9
Custom materials available based on project requirements.
Applications of SA350 LF2 Forged Nozzles
Cryogenic & Low-Temperature Systems
- LNG plants
- Cryogenic storage tanks
- Refrigeration systems
Oil & Gas Industry
- Pressure vessels in Arctic or cold regions
- Offshore and onshore processing units
Petrochemical & Chemical Plants
- Reactors
- Separators
- Heat exchangers
Power Generation
- Steam and water systems
- Low-temperature service pipelines
Global Supply & Target Markets
We export forged nozzles worldwide:
- 🇺🇸 USA – LNG and refinery projects (Texas, Louisiana)
- 🇨🇦 Canada – cold climate oil & gas systems
- 🇦🇪 Middle East – ADNOC & Saudi Aramco projects
- 🇪🇺 Europe – EPC contractors and pressure vessel manufacturers
- 🇯🇵 Japan / 🇰🇷 South Korea heavy industry
- 🇮🇳 India & Southeast Asia infrastructure
👉 Trusted supplier for pressure vessel manufacturers and EPC contractors.
Packaging & Documentation
- Export-grade wooden cases / pallets
- EN 10204 3.1 / 3.2 certification
- Heat number traceability
- Full inspection reports
FAQ
Q1: What is SA350 LF2 material used for?
A: It is used for low-temperature pressure vessel components such as nozzles, flanges, and fittings.
Q2: Why use forged nozzles instead of welded ones?
A: Forged nozzles provide better strength, integrity, and reliability under pressure and low-temperature conditions.
Q3: What industries use LF2 forged nozzles?
A: LNG, oil & gas, petrochemical, and power generation industries.
FORGED NOZZLE FOR PRESSURE VESSEL
