Difference with Japanese Standard of SM490 to SM490 TMC

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Topic Welding Industry / Technical Discussions / Difference with Japanese Standard of SM490 to SM490 TMC

By Mark Anthony Nofuente (*)

Date 12-20-2011 04:50

Hello guys,

   Could anybody help to differentiate the difference between Japanese Standard of SM 490 to SM 490 TMC.

   Anticipating your kind advise.

   Thanks.

By nantong (**)

Date 12-21-2011 10:25

TMC means that the manufacturing route is by the thermo mechanical controlled rolling process. Material properties are gained not so much by the chemistry but by the rolling and heating applied. Can make a big difference when developing welding procedures and heat treatment.

Topic Welding Industry / Technical Discussions / Difference with Japanese Standard of SM490 to SM490 TMC