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ASTM equivalent to 20MV6 & 18MV6

ASTM equivalent to 20MV6 & 18MV6

ASTM equivalent to 20MV6 & 18MV6

(OP)
Can anyone please tell me the ASTM equivalent to 20MV6 and 18MV6?  It is specified on a cylinder rod drawing.

RE: ASTM equivalent to 20MV6 & 18MV6

This question gets into a difficult area with respect to materials and standards.  There is no real ASTM standard for tubing or hollow bar that includes an equivalent grade to 20MV6/20MnV6/1.5217.  ASTM A 572 does cover HSLA bars, so one could certify that 20MV6/20MnV6/1.5217 meets the requirements of Grade 65 according to ASTM A 572, but it is not truly equivalent.

ASTM A 519 is the standard specification for seamless tubing, but it does not include a similar grade to 20MV6.  There are essentially 4 providers of seamless tubing in North America (Tenaris/TAMSA, Timken, Michigan Seamless Tubing, and Dofasco) and all of them certify according to ASTM A 519.  All of them would produce an equivalent to 20MV6 if there is sufficient volume.  Timken produces a MicroTec 2W65, which is their tradename for an equivalent to 20MV6.  I strongly recommend Timken, and strongly advise against Tenaris/TAMSA.  The cold drawing facility is quite old, and incapable of producing a clean surface on stress-relieved products.  Their communication and customer service is extremely poor.

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