Premium ASME B16.36 Alloy Steel Threaded Flanges For Cryogenic Applications

Premium ASME B16.36 Alloy Steel Threaded Flanges for Cryogenic Applications – SSM

SSM offers premium alloy steel threaded flanges, manufactured according to ASME B16.36 standards, specifically designed for cryogenic pipelines and low-temperature industrial applications. These flanges ensure reliable connections, leak-proof performance, and durability in extreme cold environments.

Material Composition

Alloy steel flanges for cryogenic applications are typically made from low-carbon, high-toughness alloy steels with enhanced cryogenic properties:

Carbon (C): ≤0.20%

Manganese (Mn): 0.30–0.70%

Chromium (Cr): 0.50–1.00%

Nickel (Ni): 3–5% (improves low-temperature toughness)

Molybdenum (Mo): 0.40–0.60% (optional, for corrosion and strength)

Iron (Fe): balance

The material is engineered to maintain toughness and ductility at extremely low temperatures, making it ideal for liquefied gases like LNG, liquid oxygen, and nitrogen pipelines.

Mechanical Properties

Tensile Strength: 450–600 MPa

Yield Strength: ≥250 MPa

Elongation: ≥30%

Impact Toughness (Charpy V-notch): ≥34 J at -196°C

Operating Temperature: Down to -196°C

What is a Threaded Flange?

A threaded flange (or screwed flange) is designed to:

Connect pipes without welding, using a male-threaded pipe

Provide a quick and reliable assembly/disassembly

Reduce heat-affected zones, which is critical for cryogenic materials

ASME B16.36 threaded alloy steel flanges are widely used in cryogenic, chemical, and industrial low-temperature pipelines.

Advantages

Excellent low-temperature toughness – safe for cryogenic applications

No welding required – reduces thermal stress and risk of embrittlement

High mechanical strength – withstands high pressure at low temperatures

Durable and corrosion-resistant – alloy steel ensures long service life

Limitations / Considerations

Limited to low-pressure applications compared to weld neck flanges

Higher cost than carbon steel threaded flanges

Requires precise threading to ensure leak-proof connections

Material and Specifications

Material: Alloy Steel (cryogenic-grade, low-carbon with Ni-Cr alloying)

Flange Type: Threaded / Screwed

Standards: ASME B16.36

Pressure Classes: ANSI Class 150–600

Size Range: NPS ½" – 24" (DN15 – DN600)

Applications: LNG, liquid oxygen/nitrogen pipelines, cryogenic industrial systems

Applications

SSM's cryogenic alloy steel threaded flanges are used in:

Liquefied natural gas (LNG) pipelines

Liquid oxygen, nitrogen, and argon transportation

Chemical and petrochemical plants

Low-temperature industrial piping systems

Why Choose SSM?

Over 30 years of experience in alloy steel flange manufacturing

Advanced forging, CNC machining, and cryogenic testing

ISO, PED, and TS certified for quality assurance

Custom sizes, pressure ratings, and finishes available

Fast global delivery and competitive pricing

Conclusion

For premium ASME B16.36 alloy steel threaded flanges for cryogenic applications, SSM provides high-strength, low-temperature-resistant, and durable flange solutions suitable for LNG, liquid gases, and industrial low-temperature pipelines.

📩 Contact SSM today for quotations, technical drawings, or custom flange solutions.

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