LTCS ASTM A333 Gr6 Seamless Pipe is widely used under low-temperature service.
The grade is designed for applications down to -45°C (-50°F). This temperature aligns with its specified minimum Charpy V-notch impact test temperature of -45°C.
Specifications and Characteristics
Standard: ASTM A333/A333M (equivalent to ASME SA-333/SA-333M).
Common Size Range: Outer diameter 21.3 mm~762 mm, Wall thicknesses 2.0 mm~140 mm
Minimum Service Temperature: The grade is designed for applications down to -45°C (-50°F).
This temperature aligns with its specified minimum Charpy V-notch impact test temperature of -45°C.
Chemical Composition (Typical):
Carbon (C): ≤ 0.30%
Manganese (Mn): 0.29% - 1.06%
Phosphorus (P): ≤ 0.025%
Sulfur (S): ≤ 0.025%
Silicon (Si): ≥ 0.10%
Mechanical Properties (Minimum Requirements):
Tensile Strength: ≥ 415 MPa
Yield Strength: ≥ 240 MPa
Elongation: ≥ 30%
Impact Energy at -45°C: ≥ 18J
Manufacturing and Delivery: Pipes are produced via hot rolling, cold drawing, or hot expanding processes.
They are typically supplied in a normalized heat treatment condition (heated to 900°C - 930°C followed by air cooling) to optimize microstructure and low-temperature toughness.
Primary Applications
Petrochemical & Chemical Industry: For equipment such as heat exchangers, separators, and in processes involving ethylene, propylene, urea, synthetic ammonia, and compound fertilizer production.
Natural Gas Processing & Transportation: For pipelines and components handling liquefied natural gas (LNG) and other cryogenic gases.
Cryogenic Equipment Manufacturing: Used in the construction of deep-cooling devices and ultra-low temperature cold storage facilities.
General Low-Temperature Fluid Transport: Suitable for conveying various fluids in low-temperature and high-cold regional infrastructure.
quality control
* Hydrostatic / Pneumatic Pressure Testing
* Non-Destructive Testing (Eddy Current, Ultrasonic)
* Chemical composition test
* Mechanical Property Testing
* Dimension & Surface Inspection
* Accept Third party inspection
Contact
Kevin
Tianjin Shenzhoutong Steel Pipe Co.,Ltd
kevin@tjshenzhoutong.com
Mob/Wechat/Whatsapp +86 15267768016
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