A350 LF2 High Neck Flanges – Durable Low-Temperature Carbon Steel Flanges

SSM supplies high-quality A350 LF2 high neck flanges, designed for low-temperature service in piping systems. These flanges provide excellent impact resistance, corrosion resistance, and mechanical strength, making them ideal for petrochemical, oil & gas, and industrial low-temperature applications.

Material – A350 LF2 Carbon Steel

A350 LF2 is a low-temperature carbon steel grade suitable for forged flanges, fittings, and other pressure-containing components. It ensures toughness and ductility at sub-zero temperatures, preventing brittle fractures.

Chemical Composition (Typical):

Carbon (C): 0.18% max

Manganese (Mn): 1.20% max

Phosphorus (P): 0.035% max

Sulfur (S): 0.035% max

Silicon (Si): 0.50% max

Mechanical Properties:

Tensile Strength: 415–620 MPa

Yield Strength: ≥ 205 MPa

Impact Toughness: Excellent at -46°C

Features

High Neck Design: Provides stronger connection and better stress distribution

Low-Temperature Service: Maintains toughness and reliability at sub-zero temperatures

Wide Compatibility: Works with pipes, valves, and fittings in pressure systems

Standard Compliance: ASTM A350, ASME B16.5

Applications

Petrochemical & Chemical Plants: Low-temperature pipelines

Oil & Gas Industry: Cryogenic and LNG pipelines

Industrial Piping Systems: Steam, water, and low-temperature fluid transport

Why Choose SSM

SSM ensures A350 LF2 high neck flanges are manufactured to strict ASTM standards and undergo rigorous quality inspections, offering durable, reliable, and precise flanges for demanding low-temperature applications.

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