There are lots of articles said about the difference between seamless steel pipe and ERW steel pipe, however, it is still confused for us when we read it. Today, I would like to introduce you with one excel table and hope this would give you help.
|
Types of steel pipe
difference |
Seamless steel pipe |
ERW steel pipe |
|
Raw material |
solid round steel billet |
Coils |
|
Manufacture technology |
extruding the metal to the desired length |
rolling metal and then welding it longitudinally across its length |
|
Joint or not |
No joint |
Welded joint |
|
Pressure holding |
High pressure holding |
Relative low pressure holding |
|
Identify |
ASTM A53, Type S |
Type F, E |
This is a brief introduction for the difference of seamless steel pipe and ERW steel pipe and I hope this would give you help.
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