Relationship between 16MN seamless steel pipe and q345e seamless steel pipe
Q345E is a steel grade that belongs to low alloy high strength steel plate with good low temperature impact properties.
16Mn is: 16Mn called low-alloy high-strength structural steel Low-alloy high-strength structural steel Although the same material, but Q345e is the material of the steel plate, e stands for high-strength impact test. 16mn is generally used for structural steel, for example: round steel, seamless steel tubes, etc.
Overall it is the same!
This seamless pipe difference source
Piston rings are manufactured and classified on the basis of function and usability. The primary usage of the Piston Ring is to seal the chamber (where the piston is moving), which can be a combustion chamber of a 2 stroke or a 4 stroke engine. Marine engines have three or more types of rings fitted on the circumference of the piston.
The piston ring is an essential piston part, and its numbers and functionality differ depending on the type and capacity of the engine.
In 2-stroke large engines, compression type piston rings are used to seal the combustion chamber and wiper rings are installed below them to wipe the deposits from the liner and distribute oil on the liner surface.
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