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4340

4340 steel is an ultra-high strength steel classified a medium-carbon, low-alloy steel.

The Corresponding Of 40CrNiMoA, 4340 And SNCM439

40CrNiMoA, 4340 and SNCM439 are the low alloy chromoly steel materials from the different standards.

What is Alloy Steel Pipe?

Alloy steel pipes are tubular with higher percentages, than standard carbon steel pipes, of alloying elements as Molybdenum (Mo), Chromium (Cr), Nickel, etc.