Symposium on Innovation & Challenges in Asian Tunnelling (SICAT 2026)

We are excited to announce that we will be exhibiting at the upcoming Symposium on Innovation & Challenges in Asian Tunnelling (SICAT) 2026 in Singapore!

As underground infrastructure projects grow more complex, finding creative and innovative solutions is more important than ever. Our team will be on the ground to showcase our latest technologies and discuss how we can help solve your tunnelling challenges.

(Aug 2026)

Ultra Low Temperature Steel Thread Bars for Cryogenic and LNG Applications

SAS Asia Bar Systems supplies Ultra Low Temperature Steel (ULTS) SAS 500 thread bars for cryogenic structures, liquefied natural gas (LNG) tanks, cryogenic pipelines, and Arctic engineering applications. Designed to perform in ultra-cold environments down to -165°C, SAS ULTS bars provide high ductility, reliable strength, and flexible installation for critical infrastructure exposed to extreme low temperatures.

What are SAS ULTS bars used for?

SAS ULTS bars are used in cryogenic and LNG infrastructure where steel reinforcement or post-tensioning components must retain strength and ductility at ultra-low temperatures. Typical applications include LNG containment tanks, cryogenic pipeline supports, low-temperature anchoring systems, and Arctic civil engineering projects.

Key technical specifications

Available diameters: Ø12mm to Ø32mm

Accessories: Full range of nuts and couplers engineered for reliable performance at ultra-low temperatures

Standard: Tested and compliant with DIN EN 14620-3:2006 for LNG storage tank applications

Key features and advantages of SAS ULTS bars

High ductility and strength at cryogenic temperatures to help reduce the risk of brittle fracture in ultra-cold environments
Continuous coarse thread along the full bar length with a self-cleaning thread effect for easier installation, bonding, and load transfer
On-site flexibility because bars can be cut, joined, and extended using SAS couplers at almost any point during construction
Reliable system compatibility with nuts and couplers designed for use in low-temperature applications

Each bar is tested extensively at low temperatures to support compliance with demanding international requirements for elongation, notch sensitivity, and yield strength. This makes SAS ULTS bars suitable for critical structures where material performance, installation reliability, and long-term safety are essential.

Why choose SAS ULTS bars for LNG and cryogenic projects?

SAS ULTS bars combine ultra-low-temperature steel performance with the flexibility of a fully threaded bar system. For engineers, contractors, and project owners working on LNG tanks or cryogenic infrastructure, this helps simplify installation while maintaining dependable mechanical performance in extreme operating conditions.

Frequently asked questions

What temperature are SAS ULTS bars designed for?

SAS ULTS bars are engineered for ultra-low-temperature applications down to -165°C, making them suitable for LNG storage, cryogenic systems, and other cold-region engineering uses.

Which standards do SAS ULTS bars comply with?

SAS ULTS bars are tested and compliant with DIN EN 14620-3:2006, a standard relevant to the design and construction of liquefied natural gas storage tanks.

Can SAS ULTS bars be adjusted on site?

Yes. SAS ULTS bars can be cut, joined, and extended using compatible SAS couplers, giving construction teams flexibility when adapting bar lengths and connections on site.

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