ISO 19819: Metallic materials — Tensile testing in liquid helium

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ISO 19819 is the ISO tensile testing method for metallic materials tested while immersed in liquid helium, at about 4.2 K (around -269 degrees C). It is used for superconducting and cryogenic structural materials. To plan liquid-helium tensile testing, talk with our team.

What ISO 19819 Covers

The method applies to tensile testing at liquid-helium temperature, the most demanding cryogenic condition. It defines how the specimen and load train operate while immersed, and how force, extension, and any discontinuous yielding are measured.

Cryogenic Testing Setup

Testing at 4.2 K requires a cryostat, materials and grips that stay ductile and dimensionally stable at the temperature, and strain measurement that works in the bath. Discontinuous (serrated) yielding is common and is handled per the method.

Properties Reported

Yield and tensile strength, elongation, and behaviour specific to liquid-helium conditions, used for superconductor and fusion or magnet structural design.

Preparing Specimens

Specimen and fixturing choices are dictated by the cryostat and the extreme temperature. To scope a cryogenic tensile setup, request a quote.

Reading the Designation

Cited as ISO 19819:YYYY. Confirm the edition before planning the cryogenic campaign.

Related Standards

ISO 15579 covers general low-temperature testing, and ISO 6892-1 covers room temperature.

Request a Quote

Planning liquid-helium tensile testing? Request a quote and our team will help you build a system matched to your temperature and specimen requirements.

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Configure your ISO 19819 setup with TensileMill CNC

Adding capacity or replacing older equipment? TensileMill CNC can support your ISO 19819 program. Our range includes universal testing machines, wedge or pneumatic grips, and flat and round specimen-preparation systems. Send us your specimen types and target standards, and we will help you spec the right system.