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KNOWING ERW PIPE (Welded Pipe)
Based on the way of manufacture in general we know 3 types of steel pipe are:
ERW pipeline refers to how the iron pipe is made, that is by electric welding that relies on the difference in resistance between the two metal surfaces.
Pipe materials that are often used are:
The alloy steel contains a number of alloying elements, such as 0.3% chromium (Cr), 0.3% nickel (Ni), 0.08% molybdenum (Mo). Carbon steel or Alloy Steel in slab form which is then dirolling in a hot state which will become a HRC (Hot Roll Coil) or in Cold Roll Coil (CRC).
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