ASTM A334 Gr6 Seamless Carbon Alloy Steel Low Fin Tubes For Low Temperature Service

ASTM A334 Gr6 Seamless Carbon Alloy Steel Low Fin Tubes For Low Temperature Service

ASTM A334 This specification covers several grades of minimum-wall-thickness, seamless and welded, carbon and alloy-steel tubes intended for use at low temperatures. Some product sizes may not be available under this specification because heavier wall thicknesses have an adverse affect on low-temperature impact properties.

The advantages of ASTM A334 Grade 6 Tubes in low-temperature service are directly tied to their specific chemistry and manufacturing process, making them a superior choice for critical cryogenic and arctic applications.

Advantages:

1.Exceptional Low-Temperature Toughness: The addition of nickel ensures the steel retains its ductility and ability to deform plastically, absorbing energy instead of fracturing catastrophically.

2.Superior Resistance to Brittle Fracture: A334 Gr. 6 its fine-grained microstructure and nickel content allow it to arrest the propagation of cracks, ensuring that any flaw that develops will not lead to a runaway failure of the entire system.

3.Good Strength at Low Temperatures: A334 Gr. 6 maintains adequate mechanical strength in cold service.

Chemical Composition (%)

For each reduction of 0.01% carbon below 0.30%, an increase of 0.05% manganese above 1.06% will be permitted to a maximum of 1.35% manganese.

Mechanical Properties

Application ( Not limited to the following )

ASTM A334 This material is specified for critical applications where low-temperature toughness is paramount

Gas Processing: Pipelines and equipment in liquefied natural gas (LNG) facilities and gas processing plants.

Cryogenic Air Separation Units: In main condensers, reboilers, and sub-coolers handling liquid nitrogen, oxygen, or argon.

Power Generation: Certain sections of power plants exposed to low temperatures.

Refrigeration: Large-scale industrial refrigeration systems.

Cryogenic Air Separation Units: In main condensers, reboilers, and sub-coolers handling liquid nitrogen, oxygen, or argon.