When properly used, eddy-current devices contribute significantly to early detection of hard-to-see sustained-load cracks.
If there have been so few SLC-related cylinder ruptures, why is there so much alarming information about them on the Internet?
A great deal of misinformation and exaggeration about SLC is attributable to rumors and inaccurate reports spread by word-of-mouth and the trade press, but especially by the Internet, where the proliferation of inaccuracies is widespread and essentially unregulated.
Which types of cylinders are most susceptible to SLC-related ruptures?
Any type of cylinder manufactured from 6351 alloy could conceivably develop a sustained-load crack over time if subjected to certain conditions.
How many aluminum cylinders have exhibited SLC?
Out of a total population of approximately 1,073,000 Luxfer scuba cylinders made of 6351 alloy, only 1.25% have exhibited SLC.
How quickly do the cracks grow?
Very slowly, as extensive research by Luxfer and outside laboratories has shown.
What is sustained-load cracking?
SLC is a metallurgical phenomenon that occasionally develops in cylinders made of 6351 aluminum alloy, as well as in other types of pressure vessels and structural components under stress for sustained periods of time.
How long does a carbon composite cylinder last?
All composite cylinders have a 15-year service life in accordance with regulations around the world. In the United States, the service life is set by the U.S. Department of Transportation.
How often must carbon composite cylinders be retested?
Luxfer's carbon composite cylinders must be retested (i.e., requalified for continued service) every five years, the same as aluminum oxygen cylinders.
Will I need special handling equipment to protect the cylinder?
Luxfer's carbon composite cylinders do not need any special handling equipment-in fact, they are the strongest, most durable cylinders ever made.
What types of valves and regulators does a Luxfer carbon composite cylinder require?
Luxfer's medical composite cylinders take standard valves and regulators.
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