Low Temperature Alloy Steel Flanges – Reliable Connections in Extreme Cold Conditions
In low-temperature, high-impact, and corrosive environments, the reliability of flange connections directly determines the safety and integrity of the entire piping system. Our Low Temperature Alloy Steel Flanges are specifically engineered for extreme cold conditions down to -45°C and below, widely used in LNG terminals, petrochemical cryogenic services, air separation units, and Arctic projects.
Core strengths
Excellent Low-Temperature Toughness
Manufactured from specialized low-temperature alloy steels such as ASTM A350 LF2, LF3, with strictly controlled chemical compositions and heat treatment (normalized + tempered), ensuring superior impact toughness and resistance to brittle fracture even at sub-zero temperatures.
Precision Dimensions & Leak-Tight Sealing
CNC-machined sealing faces (RF, FF, RTJ, etc.) ensure precise surface finish and dimensional accuracy. Each flange undergoes rigorous dimensional inspection and non-destructive testing (MT, PT, UT) to guarantee zero leakage performance.
Full Traceability & Quality Control
From steelmaking, forging, heat treatment to machining, marking and packaging – every step follows ISO 9001 and NACE MR0175 requirements. Comprehensive traceable documentation is provided, including chemical reports, mechanical property certificates, and heat treatment curves.
Corrosion Resistance & Long Service Life
Low-temperature alloy steel combined with suitable anti-corrosion coatings (e.g., epoxy zinc-rich, inorganic zinc, or hot-dip galvanizing) effectively resists sulfide stress corrosion (SSC) and hydrogen-induced cracking (HIC), extending service life in harsh environments.
Typical Applications
◎ LNG receiving terminals and carriers
◎ Air separation units (ASU) and cryogenic storage tanks
◎ Petrochemical cryogenic process piping
◎ Arctic onshore and offshore facilities
◎ Liquid ethylene, liquid oxygen, and liquid nitrogen transport systems
Customization & Support
We offer one-stop services including material selection, strength calculation, non-standard dimension design, and emergency delivery. Whether for LNG service at -101°C or liquid nitrogen lines at -196°C, we provide reliable low-temperature flange solutions.
Safety never compromised – performance never frozen.
Choose us to bring lasting strength and confidence to your low-temperature piping systems.
Our address
The East of Chen Da Road, Daqiuzhuang, Jinghai, Tianjin, China
whatsapp Number
0086 18233409873
lucky@tjshenzhoutong.com
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